Network-Appliance.Testkings.NS0-155.v2015-04-02.by.Edsel · 2019-09-12 · Failover mode causes...

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Testkings NS0-155 166q

Number: NS0-155Passing Score: 800Time Limit: 120 minFile Version: 26.5


Netapp NS0-155

Data ONTAP 7-Mode Administrator

I have correct many of questions answers. If there is any more then update this vce and re-upload.Nicely written Questions with many corrections inside.


Exam A

QUESTION 1How can you "throttle" SnapValue updates and baseline transfers so that the primary or secondary is not transmitting data as it can?

A. Use the -k option in the snapvault start or snapshot modify commands.B. SnapVault does not support throttling of network throughout.C. Use the snapvault throttle command.D. Use the -k option in the snapvault initialize command.

Correct Answer: ASection: (none)Explanation

Explanation/Reference:Explanation:http://backdrift.org/man/netapp/man1/na_snapvault.1.html The snapvault subcommands are:start [ -r ] [ -k n ] [ -t n ] [ -w ] [-p {inet | inet6 unspec}] [ -o options ] [ -S [primary_filer:]primary_path ] secondary_qtreemodify [ -k n ] [ -t n ] [-p {inet | inet6 | unspec}] [ -o options ] [ -S primary_filer:primary_path ] sec_ondary_qtree

The -k option sets the maximum speed at which data is transferred in kilobytes per second. It is used to throttle disk, CPU, and network usage. If this option is notset, the filer transmits data as fast as it can. The setting applies to the initial transfer as well as subsequent update transfers from the primary.

QUESTION 2Node 1 in a clustered pair detects that it has lost connectivity to one of its disk shelves. Node 1 is still up, but it cannot see one of its disk shelves. However, thepartner node, Node 2, can see all of the Node 1's disk shelves. Which feature will cause Node 2 to monitor this error condition for a period of three minutes bydefault, and then forcibly take over Node 1 if the error condition persists?

A. Auto enable of givebackB. Negotiated Fail OverC. Takeover on panicD. Cf.quickloop.enable

Correct Answer: BSection: (none)Explanation

Explanation/Reference:Real 2Netapp NS0-155 Exam


Explanation:http://www.wafl.co.uk/cf/http://wafl.co.uk/options/Negotiated failover is a general facility which supports negotiated failover on the basis of decisions made by various modules.

cf.takeover.on_disk_shelf_miscompareThis option allows negotiated takeover to be enabled when the cluster nodes detect a mismatch in disk shelf count. By default, this option is set to off.

This option is available only when cluster is licensed and changing the value on one filer automatically changes the value on the partner filer.

QUESTION 3Which two Volume SnapMirror (VSM) relationship are supported? (Choose two)

A. Data ONTAP 8.0.2 64-bit -->Data ONTAP 8.1 64-bitB. Data ONTAP 8.0.2 32-bit --> Data ONTAP 8.0.2 64-bitC. Data ONTAP 7.3.2 32-bit --> Data ONTAP 8.1 64-bitD. Data ONTAP 7.3.2 32-bit --> Data ONTAP 8.0.2 64-bit

Real 3Netapp NS0-155 Exam

Correct Answer: ACSection: (none)Explanation

Explanation/Reference:Explanation: Volume SnapMirror Interoperability Matrix.



Reference: SnappMirror Async Overview and Best Practices guide.

QUESTION 4An aggregate is composed of twelve 36-Gigabyte disks. A drive fails and only 72-Gigabyte spare disks are available. Data ONTAP will then perform what action.

A. Chooses a 72-Gigabyte disk and use it as is.B. Chooses a 72-Gigabyte disk and right-size it.C. Halts after 24 hour of running in degraded mode.D. Alerts you that there are no 36-Gigabyte disks and wait for one to be inserted.


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196986/html/GUID-8A91F6A2-61B8-42C3-


AEAB7D5AA9BBE9CF.html

If a disk fails and no hot spare disk that exactly matches the failed disk is available, Data ONTAP uses the best available spare. Understanding how Data ONTAPchooses an appropriate spare when there is no matching spare enables you to optimize your spare allocation for your environment.

Data ONTAP picks a non-matching hot spare based on the following criteria (and more; in the link above):If the available hot spares are not the correct size, Data ONTAP uses one that is the next size up, if there is one.The replacement disk is downsized (aka right sized) to match the size of the disk it is replacing; the extra capacity is not available.

QUESTION 5Which statement is true about expanding an aggregate from 32-bit to 64-bit in place?



A. All aggregates are automatically converted from 32-bit to 64-bit with the Data ONTAP 8.1 upgrade.B. The expansion is triggered by an aggr convert command.C. The expansion is triggered by adding disks to exceed 16 TB.D. The 32-bit aggregates are degraded and must be Volume SnapMirrored to a new 64-bit aggregates with Data ONTAP 8.1 upgrade.

Correct Answer: CSection: (none)Explanation

Explanation/Reference:Explanation:http://www.ntapgeek.com/2011/12/how-in-place-expansion-works.html To upgrade an aggregate in-place, the only available method is to add disks to expand theaggregate to >16TB.

QUESTION 6The root admin on the UNIX box receives an "Access Denied" message when he attempts to access a newly mounted qtree. What's the most likely cause of thiserror?

A. The qtree is missing from the /etc/hosts file.B. NFS is turned off on the storage system.C. The qtree is set to ntfs security style.D. The qtree has not been exported.


Explanation/Reference:Explanation:http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/smg/GUID-866DD79D-D2A6-4FBA- B0BDA63560FECEFF.html

https://library.netapp.com/ecmdocs/ECMP1196891/html/GUID-F6304830-B124-40A5-95D6- C646AA85E9E0.html

Only hostnames and IPs are referenced in /etc/hosts, so A is incorrect. The question states that the qtree was mounted, and B and D would preclude this so theyare incorrect. You need to set a qtree to mixed or unix security style to support UNIX users.

QUESTION 7Which two modes support using SnapMirror over multiple network paths?



A. StandaloneB. PartnerC. MultiD. FailoverE. Give back

Correct Answer: CDSection: (none)Explanation

Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-75BD4540-A103-4E2B-8B0A- E6BBC0D3F43F.htmlhttp://backdrift.org/man/netapp/man5/na_snapmirror.conf.5.html

Two multipath methods are supported:The multiplexing mode causes snapmirror to use both paths at the same time. If one should fail, it will switch to use the remaining path only and use both againshould the failing path be repaired. Failover mode causes snapmirror to use the first path as the desired path and only use the second path should problems arisewith the first path.

QUESTION 8Identify the two commands that could be entered on the SnapMirror destination storage system.(Choose two)

A. Options snapmirror.access onB. Options snapmirror.resync onC. Snapmirror initializeD. Snap mirror resync


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_snapmirror.1.html snapmirror initialize [ -S source ] [ -k kilobytes ] [ -s src_snap ] [ -c


create_dest_snap ] [ -w ] destination Starts an initial transfer over the network. An initial transfer is required before update transfers can take place.

The initialize command must be issued on the destination node. If the destination is a volume, it must be restricted (see na_vol(1) for information on how to examineand restrict volumes). If the destination is a qtree, it must not already exist (see na_qtree(1) for information on how to list qtrees). If a qtree already exists, it must berenamed or removed (using an NFS or CIFS client), or snapmirror initialize to that qtree will not work.


snapmirror resync [ -n ] [ -f ] [ -S source ] [ -k kilobytes ] [ -s src_snap ] [ -c create_dest_snap ] [ -w ] destination Resynchronizes a broken-off destination to itsformer source, putting the destination in the snapmirrored state and making it ready for update transfers. The resync command must be issued on the destinationnode.

QUESTION 9Which two operations can be performed with the SnapDrive for windows graphical user interface?

A. Create volumeB. Create Snapshot copiesC. Create FileD. Create Disk

Correct Answer: BDSection: (none)Explanation

Explanation/Reference:Explanation:https://library.netapp.com/ecm/ecm_download_file/ECMM1278920

What SnapDrive doesSnapDrive software integrates with the Windows Volume Manager so that NetApp filers can serve as virtual storage devices for application data in Windows 2000Server and Windows Server 2003 environments.

SnapDrive is dependent on the virtual disk service. The virtual disk service must be started on the host prior to installing SnapDrive. SnapDrive manages virtualdisks (LUNs) on a NetApp filer, making these virtual disks available as local disks on Windows hosts. This allows Windows hosts to interact with the virtual disksjust as if they belonged to a directly attached redundant array of independent disks (RAID).

SnapDrive provides the following additional features:It enables online storage configuration, virtual disk expansion, and streamlined management. It integrates NetApp Snapshot technology, which creates point-in-timeimages of data stored on virtual disks.It works in conjunction with SnapMirror® software to facilitate disaster recovery from either asynchronously or synchronously mirrored destination volumes.



QUESTION 10Which storage system command would display the WWPNs of hosts that have logged into storage system using a Fibre Channel connection?

A. fcp configB. fcp initiator showC. fcp show iD. fcp show initiator

Correct Answer: DSection: (none)Explanation

Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_fcp.1.html

fcp show initiator [ -v ] [ adapter ]If no adapter name is given, information about all initiators connected to all adapters are shown. The command displays the portname of initiators that are currentlylogged in with the Fibre Channel target adapters. If the portname is in an initiator group setup through the igroup command, then the group name is also displayed.Similarly, all aliases set with the fcp wwpn-alias command for the portname are displayed as well.If the -v flag is given, the command displays the Fibre Channel host address and the nodename/portname of the initiators as well.

QUESTION 11Which action will cause a currently in-sync SnapMirror relationship to fail out of sync?


A. Running snapmirroe update on the source storage system.B. Running snapmirror release on the source storage system.C. Modifying the /etc/snapmirror.conf file for the relationship on the source storage systemD. Modifying the /etc/snapmirror.conf file for the relationship on the destination storage system.



Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_snapmirror.1.html https://library.netapp.com/ecmdocs/ECMP1196979/html/man5/na_snapmirror.conf.5.html snapmirror update [ -S source ] [ -k kilobytes ] [ -s src_snap ] [ -c create_dest_snap ] [ -w ] destinationFor asynchronous mirrors, an update is immediately started from the source to the destination to update the mirror with the contents of the source.

For synchronous mirrors, a snapshot is created on the source volume which becomes visible to clients of the destination volume.

The snapmirror update command must be issued on the destination filer. snapmirror release source { filer:volume | filer:qtree } Tell SnapMirror that a certain directmirror is no longer going to request updates. If a certain destination is no longer going to request updates, you must tell SnapMirror so that it will no longer retain asnapshot for that destination. This command will remove snapshots that are no longer needed for replication to that destination, and can be used to clean upSnapMirror- created snapshots after snapmirror break is issued on the destination side.

The source argument is the source volume or qtree that the destination is to be released from. The destination argument should be either the destination filer anddestination volume name or the destination filer and destination qtree path. You can use a line from the output of the snapmirror destinations command as the set ofarguments to this command. The /etc/snapmirror.conf file exists on the node containing the mirror used for SnapMirror.

QUESTION 12You are trying to do a single file SnapRestore for a file, but you are receiving an error message that the directory structure no longer exists. Which is the most likelyexplanation?


A. Once the directory structure has been deleted, you cannot restore the file using single file SnapRestore. You must now SnapRestore the volume.B. Snapshot copies have been created since the original directory structure was deleted.C. You must recreate the directory structure before trying to restore the file.


D. You cannot restore a file to an alternate location.



Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-35C9A4BA-02BA-4965-A366- 698C1299E29D.html

You can restore a file only to the volume where it was originally located. The directory structure to which a file is to be restored must be the same as that specified inthe path. If this directory structure does not exist, you must create it before restoring the file.

QUESTION 13Which mechanism allows you to make LUNs available to some initiators and unavailable to others?

A. LUN maskingB. LUN groupingC. LUN cloningD. LUN hiding


Explanation/Reference:Explanation:http://en.wikipedia.org/wiki/Logical_Unit_Number_masking Logical Unit Number Masking or LUN masking is an authorization process that makes a Logical UnitNumber available to some hosts and unavailable to other hosts.

QUESTION 14An iSCSI ______________ is established when the host initiator logs into the iSCSI target. Within a ______________ you can have one or more ____________.

A. session, session, connectionsB. connection, session, connectionsC. connection, connection, sessionsD. session, connection, sessions




Explanation:http://scst.sourceforge.net/mc_s.htmlhttp://www.alacritech.com/legacypdf/iSCSI_Multiple_Connections.pdf

Meme: Remember the acronym: MCS or MC/S - Multiple Connections per Session. Microsoft Windows 2008's MPIO driver supports MC/S.

QUESTION 15Which NetApp Virtual Storage Tier component works at the host level?

A. Flash PoolB. Flash DiskC. Flash AccelD. Flash CacheE. Flash IO


Explanation/Reference:Explanation:http://www.netapp.com/us/system/pdf-reader.aspx?m=ds-3366.pdf&cc=us Flash Accel utilizes server-based flash storage as cache for the host.

QUESTION 16What does it signify if the disks are "not owned" in a FAS2020 system?

A. The disks are mailbox disks.B. The disks are spare disks.C. The disks are data disks.D. The disks are not used.


Explanation/Reference:Explanation:Disks must be assigned to an aggregate to be used as raid group members or spares.


Unassigned disks are displayed as "not owned".


QUESTION 17For each Open Systems platform directory to be backed up to the SnapVault secondary storage

Real 14Netapp NS0-155 Examsystem you must execute _____________.

A. An initial baseline copyB. A temporary copyC. An incremental copyD. A scheduled update copy


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-EEBC8B52-BEA9-4B49-874F- 7EC78D3F602E.html

Each open systems platform, when prompted by the secondary system, transfers initial base images of specified directories to qtree locations on the secondarysystem. Note: There are no primary-side Snapshot copies in Open Systems SnapVault.

QUESTION 18What is the maximum distance between a standard clustered pair at 2Bbps?

A. 100 metersB. 10 metersC. 50 metersD. 500 meters



Explanation/Reference:Explanation:

QUESTION 19Which exportfs command will temporally export the resource while ignoring the options specified in the /etc/exports file?

A. exportfs v <path>B. exportfs u <path>C. exportfs a <path>D. exportfs i <path>



Explanation:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_exportfs.1.html exportfs [ -v ] [ -io options ] path -i Ignores the options specified for a file systempath in the /etc/exports file. If you do not specify the I option with the -o option, Data ONTAP uses the options specified for the file system path in the /etc/ exportsfile instead of the options you specify on the command line.

QUESTION 20Is NetApp storage Encryption supported in Data ONTAP 8.1.1 Cluster-Mode?

A. No, but you can file a PVR to request support.B. No. it is targeted for a future release of Data ONATP.C. Yes, only with a special license installed.D. Yes, it has been supported since 8.0.1.


Explanation/Reference:Explanation:http://www.ntapgeek.com/2011/03/netapp-storage-encryption-available.html March, 2011: "With the recent release of Data ONTAP 8.0.1, NetApp now offers fulldisk encryption to prevent unauthorized access to data at rest."


QUESTION 21There are three phases of Non Disruptive Volume Movement (NDVM). What is the correct sequence of these phases?


A. Setup Phase, Mirror Phase, Cutover PhaseB. Initialization phase, Copy Phase, Migrate PhaseC. Begin Phase, Move Phase, Complete PhaseD. Setup Phase, Data Copy Phase, Cutover Phase


Explanation/Reference:Explanation:https://communities.netapp.com/servlet/JiveServlet/previewBody/9734-102-1- 17848/PDF_Tips_Data_Motion_0211.pdf

Non-disruptive Volume Movement is called DataMotion. DataMotion uses SnapMirror for volume migration.A DataMotion migration occurs in three phases:1. Setup2. Data copy3. Cutover

QUESTION 22Which statement describes the results of the SnapMirror resynce command?

A. Resynchronization finds the newest common snapshot shared by the two volumes or qtree, and removes all newer information on the storage system on whichthe command is run.

B. Resynchronization will cause the loss of all data written to the destination after the original base Real 17Netapp NS0-155 Examsnapshot was made.

C. Resynchronization will update the snapshot on the destination filer.


D. Resynchronization will update the snapshot on the source filer.


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_snapmirror.1.html

snapmirror resync[ -n ] [ -f ] [ -S source ] [ -k kilobytes ] [ -s src_snap ] [ -c create_dest_snap ] [ -w ] destinationResynchronizes a broken-off destination to its former source, putting the destination in the snapmirrored state and making it ready for update transfers. The resynccommand must be issued on the destination node.

The resync command can cause data loss on the destination. Because it is effectively making destination a replica of the source, any edits made to the destinationafter the break will be undone.

For formerly mirrored volumes, the resync command effectively performs a SnapRestore (see na_vol(1)) on the destination to the newest snapshot which is common to both the source and the destination. In most cases, this is the last snapshot transferred from thesource to the destination, but it can be any snapshot which is on both the source and destination due to SnapMirror replication. If new data has been written to thedestination since the newest common snapshot was created, that data will be lost during the resync operation.

QUESTION 23If you were troubleshooting and wanted to look at SnapMirror log files, what is the path to these files?

A. /vol/vol0/etc/log/snaplog/B. /vol/vol0/etc/snapmirror/C. /vol/vol0/etc/snaplog/D. /vol/vol0/etc/log/





The root volume is always vol0 and etc is contained therein. When exporting the root volume via NFS, the path is/vol/vol0; so the full path to snapmirror log files is /vol/vol0/etc/log./etc/log/snapmirror.

This file logs SnapMirror activity. Log file for current week. /etc/log/snapmirror.[0-5] SnapMirror log files for previous weeks.

QUESTION 24Which two will allow you to read and analyze a packet trace file generated by the storage system? (Choose two)


A. WireSharkB. PkttC. NetmonD. Eternal View


Explanation/Reference:Explanation:pktt is part of the Data OnTap command set.The output of pktt is not very human-readable, but it utilizes the tcpdump format which many traffic analyzers can read or import. Only two such analyzers havebeen offered here.

Wireshark is the successor of Etherreal, and available for several platforms. Netmon is a Microsoft project, available for Windows, soon to be deprecated by theMicrosoft Message Analyzer project.

QUESTION 25How does the NetApp Remote Agent (RSA) connect to NetApp Support?

A. NetApp Support initiates a non-secure connection to the RSA.B. NetApp Support initiates a secure connection to the RSA.C. The RSA initiates a secure connection to NetApp Support.D. The RSA initiates a non-secure connection to NetApp support.

Correct Answer: C


Section: (none)Explanation

Explanation/Reference:Explanation:https://library.netapp.com/ecm/ecm_download_file/ECMP1200040

Remote Support Agent is the facility to provide NetApp Support Engineers with the ability to remotely trigger AutoSupport.

Remote Support Agent uses HTTP or HTTPS to communicate with the storage controller to initiate commands and to collect files. It uses HTTPS to send systemlogs and core files from the Data ONTAP root volume to Remote Support Enterprise on the NetApp Support side. NetApp RSA is not related to the RSA public keyencryption algorithm.

QUESTION 26Real 20Netapp NS0-155 ExamWhich two commands can be used to enable LUN reservations? (Choose two)

A. lun set reservationB. lun reservation setC. lun mapD. lun create

Correct Answer: ADSection: (none)Explanation

Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_lun.1.html

lun set reservation lun_path [ enable | disable ]Enables or disables the space reservation on the LUN. If no arguments are supplied after the lun_path, then the space reservation status of the given lun_path isdisplayed. lun create -s size -t ostype [ -o noreserve ] [ -e space_alloc ] lun_path This usage of the lun create command should be employed to create a new LUN ofgiven size, with initially zero contents. The LUN is created at the lun_path given. No file should already exist at the given lun_path. The directory specified in thelun_path must be a qtree root directory.

The size is specified in bytes. Optionally, a number followed by a one-character multiplier suffix can be used: c (1), w (2), b (512), k (1024), m (k*k), g (k*m), t(m*m).

The size of the created LUN could be larger than the size specified, in order to get an integral number of cylinders while reporting the geometry using SAN


protocols.

The size of the LUN actually created is reported if it is different from that specified in the command.The mandatory ostype argument is one of: solaris (the LUN will be used to store a Solaris raw disk in a singleslice partition), windows (the LUN will be used to storea raw disk device in a single- partition Windows disk using the MBR (Master Boot Record) partitioning style), hpux (the LUN will be used to store HP-UX data), aix(the LUN will be used to store AIX data), vld (the LUN contains a SnapManager VLD), linux (the LUN will be used to store a Linux raw disk without any partitiontable), netware (the LUN will be used to store NetWare data), vmware (the LUN will be used to store VMware data), windows_gpt (the LUN will be used to storeWindows data using the GPT (GUID Partition Type) partitioning style), windows_2008 (the LUN will be used to store Windows data for Windows 2008 systems),openvms (the LUN will be used to store Open-VMS data), xen (the LUN will be used to store Xen data), hyper_v (the LUN will be used to store Hyper-V data),solaris_efi

By default, the LUN is space-reserved. To manage space usage manually, -o noreserve can be specified.


Using this option will create a LUN without any space being reserved. Provisioning threshold events can be enabled by specifying -e space_alloc option. This optionhas to be used in conjunction with -o noreserve.

lun map [ -f ] lun_path initiator_group [ lun_id ]Maps a LUN to all the initiators in the supplied group. If a LUN ID is not specified, the smallest number that can be used for the various initiators in the group isautomatically picked. Note that this command can be used multiple times to configure multiple maps for a LUN, or for an initiator group. Once created, you can uselun show -m to list all the LUN mappings. The optional -f argument disables checking with the HA partner for LUN mapping conflicts.

QUESTION 27Which Data ONTAP option sets system-wide for all transfers?

A. Options transfers.wide.enableB. Options transfer.throttle.enable.C. Option replication.wide.enableD. Options replication.throttle.enable


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_options.1.html

replication.throttle.enable Enables global network throttling of SnapMirror and SnapVault transfers.


The default value for this option is off.replication.throttle.incoming.max_kbsThis option specifies the maximum total bandwidth used by all the incoming (applied at destination) SnapMirror and SnapVault transfers, specified in kilobytes/sec.The default value for this option is unlimited, which means there is no limit on total bandwidth used. This option is valid only when the optionreplication.throttle.enable is on.

replication.throttle.outgoing.max_kbsThis option specifies the maximum total bandwidth used by all the outgoing (applied at source) SnapMirror and SnapVault transfers specified in kilobytes/sec. Thedefault value for this option is unlimited, which means there is no limit on total bandwidth used. This option is valid only when the option replication.throttle.enable ison.


QUESTION 28What is the correct format for the scheduling component of a SnapVault schedule?

A. cnt[@day_list][@hour_list]B. YYYY-MM-DDC. Crontable formatD. List of dates in ISO Date format


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_snapvault.1.html http://www.geekyfacts.com/index.php?option=com_content&view=article&id=64:snapvault snapvault snap sched [ -f ] [ -x ] [ -o options ] [ volname [ snapname [ schedule ]]] schedule is cnt[@day_list][@hour_list] or cnt[@hour_list][@day_list] In the schedule, cnt tells SnapVault how many of the snapshots to keep for primaries and for non- SnapLock secondaryvolumes. The snapshots will be numbered newest to oldest from 0 to cnt-1. When creating a new snapshot, SnapVault will delete the oldest snapshots, incrementby one the number on the remaining snapshots and then create a new number 0 snapshot. If a snapshot is missing from the sequence (e.g. sv.0, sv.1, and sv.3exist but sv.2 does not), only snapshots that need to be renumbered to make room for the new sv.0 snapshot will be renumbered. In the example, sv.0 and sv.1would be renamed to sv.1 and sv.2, but sv.3 would remain unchanged.

The cnt in the schedule is interpreted differently for SnapVault secondary SnapLock volumes. For SnapLock secondary volumes, snapshots are created with aname that includes an encoded date and time of when the snapshot is created. These snapshots are never renamed and they are never automatically deleted.These snapshots may be deleted using snap delete after the retention period of the snapshot has expired. If cnt is 0, no snapshots will be taken. If cnt is any non-zero value, snapshots will be taken and no snapshots will be automatically deleted.


If specified, the day_list specifies which days of the week the snapshot should be created. The day_list is a comma-separated list of the first three letters of the day:mon, tue, wed, thu, fri, sat, sun. The names are not case sensitive. Day ranges such as mon-fri can also be given. The default day_list is mon-sun, i.e. every day.

If specified, the hour_list specifies which hours of the day the snapshot should be created, on each scheduled day. The hour_list is a comma-separated list of thehours during the day, where hours are integers from 0 to 23. Hour ranges such as 8-17 are allowed. Also, step values are allowed in conjuction with ranges. Forexample, 0-23/2 means "every two hours". The default hour_list is 0, i.e. midnight on the morning of each scheduled day.


QUESTION 29UNIX allows file access based on___________.

A. NT ACLs and UNIX permissions.B. NT ACLs and SID.C. GID or UID and UNIX permissions.D. GID or UID and ACLs.



In OnTap 8.0, when UNIX security style is selected, only UNIX security objects can be used. The correct answer is GID, UID and UNIX permissions.

Basic UNIX permissions are organized into three classes: user, group, and others. UNIX operating systems identify users with a numerical value: a user identifier,also known as a UID or User ID. Each user is a member of a group of the same name as the user. Like UIDs, groups (GIDs) are also specified using a numericalvalue.


QUESTION 30Which NetApp Storage Tier component works controller-wide on a FAS controller?

A. Flash PoolB. Flash Disk


C. Flash AccelD. Flash CacheE. Flash IO


Explanation/Reference:Explanation:http://www.netapp.com/us/system/pdf-reader.aspx?m=ds-3177-0512.pdf&cc=us http://www.netapp.com/us/products/storage-systems/flash- cache/index.aspx?ref_source=ntp141p359372brg-c-26967a63-442e-c7e9-6a73- 00002efa4dd6&gclid=CLLdsqWKrbkCFS4aOgodb1AAuA

Flash Cache is a controller-attached PCIe intelligent caching solution.Flash Accel is a host-attached caching solution.Flash Pool utilizes SSDs to enhance performance of disk aggregates (implicitly not controller- wide).Flash Disk and Flash IO are ambiguous terms.

QUESTION 31Which NetApp Storage Tier component works aggregate-wide on a FAS controller?

A. Flash PoolB. Flash DiskC. Flash CacheD. Flash AccelE. Flash IO


Explanation/Reference:Explanation:http://www.netapp.com/us/system/pdf-reader.aspx?m=ds-3177-0512.pdf&cc=us


http://www.netapp.com/us/products/platform-os/flashpool.aspx Flash Pool utilizes SSDs to enhance performance of disk aggregates. Flash Cache is a controller-attached PCIe intelligent caching solution.


Flash Accel is a host-attached caching solution.Flash Disk and Flash IO are ambiguous terms.

QUESTION 32What are two methods of protecting LUN overwrites using Snapshot copies on a volume with fractional reserve set to 0%? (Choose two)

A. Snap AutodeleteB. iGroup throttleC. LUN resetD. Volume AutoSize


Explanation/Reference:Explanation:https://communities.netapp.com/groups/chris-kranz-hardware-pro/blog/2009/03/05/fractional- reservation--lunoverwrite

From the article:"If you reduce the Fractional Reservation to 0, you need to make sure the rate of change is within the volume size, or you need to make sure the volume can auto-grow when required or even snap auto-delete to reduce the reserved blocks and free up space (although I am not a huge fan of snap auto-delete for variousreasons)."

QUESTION 33Which set of protocols provide block-level access to NetApp storage?

A. SNA and RPCB. iSCSI and FCPC. HTTP and FTPD. CIFS and NFS




Explanation:iSCSI and Fiber Channel encapsulate SCSI protocol, simulating direct disk access. These are commonly referred to as a block storage protocols. FCoE is anothersuch protocol. CIFS and NFS, HTTP and FTP provide file access not block access.

QUESTION 34Which command on the storage system allows you to display statistics on the performance of system resource such as CPU, NVRAM, network interfaces, anddisks?

A. netstatB. netdiagC. pkttD. sysstat


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_sysstat.1.html sysstat reports aggregated filer performance statistics such as the current CPUutilization, the amount of network I/O, the amount of disk I/O, and the amount of tape I/O.


QUESTION 35Which three protocols can coexist on a NetApp storage system? (Choose three)

A. DAFSB. CIFSC. DFSD. FCPE. NFS

Correct Answer: BDESection: (none)Explanation

Explanation/Reference:


Explanation:Data OnTap can simultaneously serve NAS and SAN protocols. CIFS, NFS, and FC protocol are examples of NAS and SAN protocols respectively.

Data OnTap 7.1 or later does not support DAFS.DFS provides location transparency and redundancy by allowing shares in multiple different locations to be logically grouped under one folder, or DFS root. Whilepractically a CIFS server shared by a Data OnTap filer can be a DFS target, DFS namespaces can only be hosted on Windows systems.

QUESTION 36Which three tools present statistics from the Data ONTAP counter manager? (Choose three)

A. Operations managerB. Window perfmonC. SysstatD. Stats

Correct Answer: ABDSection: (none)Explanation

Explanation/Reference:Explanation: Section: OnTap AdministrationExplanation

https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_stats.1.html https://communities.netapp.com/servlet/JiveServlet/previewBody/18684-102-5-34635/TR4090PerformanceAdvisorFeatures%26Diagnosis.pdf https://communities.netapp.com/groups/chris-kranz-hardware-pro/blog/2009/04/01/performance-


stats-withoutperfstat-or-ops-mgr

Note in the diagram below how the performance tools integration with Data OnTap. statit and sysstat interface directly with the performance counters while the othertools - including stats, a command line tool -integrate with the Counter Manager.


QUESTION 37What security mechanism can an administrator use on an OSSV client to use permissions allowing backup to a SnapVault secondary system?

A. MD5 authentication between SnapVault primary and secondary, with changeable passwordB. Contents inside file called access and located in OSSV /snapvault/etcC. QSM access list modifiable via svconfiguratorD. Via /etc/hosts.equiv file




Explanation:https://communities.netapp.com/servlet/JiveServlet/previewBody/4791-102-2-13466/tr-3466.pdf In order to restrict the NetApp secondary systems that are allowedto initiate backups from an OSSV host, the QSM Access List field can be populated with the hostname of the secondary using the OSSV Configurator utility. Whenusing this option, make sure the "Check QSM Access List" box is enabled.


The snapvault.access option on the NetApp secondary can be used to restrict the OSSV hosts that are allowed to initiate restores from that secondary system. Thisoption can be populated with a list of hostnames for each OSSV host. For example:options snapvault.access host=ossv1,ossv2,ossv3Screenshot of the svconfigurator GUI; note the QSM access list checkbox and field.


QUESTION 38When using MetroCluster in a forced takeover mode, identify two methods for restricting access to the disaster site node. (Choose two)

A. Use manual fencing


B. Use the cf giveback f command.C. Use the cf forcetakeover d command.D. Turn off power to the disaster site node.E. Isolate the failed node from the surviving node.


Explanation/Reference:Explanation:http://vipulvajpayeestorage.blogspot.com/2012/01/manually-failover-activity-in-netapp.html

In order to test or effect a Disaster Recovery operation, you must restrict access to the disaster site node to prevent the node from resuming service. If you do not,you risk the possibility of data corruption.

Access to the disaster site note can be restricted in the following ways:Turn off the power to the disaster site node Use "manual fencing" (Disconnect VI interconnects and fiber channel cables; either physically or through configurationchanges on the fabric switches.)Isolating the failed node from the surviving node could still lead to the possibility of a split brain, so this is not a correct answer.

QUESTION 39The two copies SyncMirror volume are called ____________, which are physical copies of the same file system and consist of one or more RAID groups.

A. Snapshot copiesB. AggregatesC. Plexes


D. Volumes


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-D4D7C7F0-9063-4099-B5CA- 8FEE619EEF1D.html

SyncMirror is a feature of Data OnTap used to mirror data to two separate aggregates. It allows for real-time mirroring of data to matching aggregates physically


connected to the same storage system.SyncMirror provides for synchronous mirroring of data, implemented at the RAID level. You can use SyncMirror to create aggregates that consist of two copies ofthe same WAFL file system. The two copies, known as plexes, are simultaneously updated. Therefore, the copies are always identical. The two plexes are directlyconnected to the same system.

The following provides information about the activities of SyncMirror:SyncMirror can be used to mirror aggregates and traditional volumes. (A traditional volume is essentially an aggregate with a single volume that spans the entireaggregate.) SyncMirror cannot be used to mirror FlexVol volumes. However, FlexVol volumes can be mirrored as part of an aggregate.SyncMirror is different from synchronous SnapMirror.

QUESTION 40You want to create an automated test environment that performs a single file SnapRestore time you run the procedure, however, SnapRestore prompts you toconfirm your decision to revert the file. How can you automate this step?

A. Use the -f option with the snap restore command.B. Enable the options snaprestore_noprompts enable = on option.C. These prompts are for data protection and auditing and cannot be overridden.D. Enter the priv set advanced mode on the storage system and prompt will not appear.


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_snap.1.html

snap restore [ -f ] [ -t vol | file ] [ -s snapshot_name ] [ -r restore_as_path ]


vol_name | restore_from_pathReverts a volume to a specified Snapshot copy, or reverts a single file to a revision from a specified Snapshot copy.Before reverting the volume or file, the user is requested to confirm the operation. The -f option suppresses this confirmation step.

QUESTION 41Five minutes ago, you performed a single file SnapRestore on a large NFS file. 40% of your NFS users are now complaining about getting "stale file handles" for thefile. Which is the most likely cause of this problem, and the best procedure to correct it?

A. This might be due to an NFS storage system and client mismatch. Check to see that these users have the same version of the NFS client that existed at the


time the snapshot was taken.Real 33Netapp NS0-155 Exam

B. NFS users why try to access a reverted file without first reopening it might get a "stale file handle" error message. Have the users try to reopen the file and see ifthe problem is resolved.

C. After a single file SnapRestore, NFS users have to reboot their systems. Have them reboot their systems.D. These users are on a different subnet from the others. Start troubleshooting by checking their subnet.


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-35C9A4BA-02BA-4965-A366- 698C1299E29D.html

Reverting a file to a selected Snapshot copyUsing snap restore to revert a single file to a selected Snapshot copy is practical when the file is so large that you cannot copy the previous file version from theSnapshot copy to the active file system.Before you begin Ensure that you notify the network users before reverting a file so that they know that the current data in the file will be replaced by that of theselected Snapshot copy.

Note: NFS users who try to access a reverted file without first reopening it might get a stale file handle error message after the volume reversion.

QUESTION 42Using the output below, a co-worker determined that these are types "Solaris" LUNs. What would your destination be?

lun show m LUN patch mapped to LUN ID -------------------------------------------------------

/vol/vol1/lun0 solaris igroup0 0 /vol/vol1/lun solaris- igroup1

0 /vol/vol1/qtree1/lun2 solaris igroup2 0 /vol/vol1/qtree1/lun3 solaris igroup3 0

A. These are type "Solaris" LUNs.B. Not enough information is given here. Run the lun status command to get the information requested.C. Not enough information is given here. Run the lun show v command to get the information requested.D. Not enough information is given here. Run the lun map command to get the information Real 34

Netapp NS0-155 Examrequested.




QUESTION 43Which statement is true about ASIS deduplication license with Data ONTAP 8.1?

A. The existing 8.0 license key is used.B. A new license key is generated.C. The license is capacity-based.D. The license no longer exists.


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1120690/html/frameset.html

Changes to deduplication in 8.1 7-modeStarting with Data ONTAP 8.1, you can enable the deduplication feature without adding a license.Fordeduplication, no limit is imposed on the supported maximum volume size. The maximum volume size limit is determined by the type of storage system regardlessof whether deduplication is enabled.

QUESTION 44When running deduplication on SnapVault destinations, which three statements are true?

A. The target SnapVault controller deduplicates inline.B. The source SnapVault data is deduplicated inline on the target before it is written to disk.C. Deduplication internally synchronizes with the SnapVault schedule on the destination.D. The source (primary) system sends duplicated data even if the source data is deduplicated.


E. Deduplication with SnapVault creates a snapshot, deduplicates, then deletes and recreates the snapshot to effectively deduplicate savings.


Correct Answer: CDESection: (none)Explanation

Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196986/html/GUID-E5AD37DE-2F44-47DB-90A3- C8E115FCBFB7.htmlSnapVault replicates at the file level not the block level. Deduplication is always a post-processed activity for Data OnTap, while compression is an inline process.The deduplication schedule depends on the SnapVault update schedule on the destination system.A new Snapshot copy replaces the archival Snapshot copy after deduplication finishes running on the destination system. (The name of this new Snapshot copy isthe same as that of the archival copy, but the Snapshot copy uses a new timestamp, which is the creation time.) The SnapVault update recognizes the deduplicatedblocks as changed blocks. Thus, when deduplication is run on an existing SnapVault source for the first time, all saved space is transferred to the destinationsystem.

QUESTION 45If you believe you create FC SAN performance problem, which NatApp utility would gather both your Solaris host and storage system data for analysis?

A. sio_ntap.exeB. prestartC. poststatD. perfstat


Explanation/Reference:Explanation:https://communities.netapp.com/docs/DOC-1059

Performance and Statistics Collector (perfstat) is a data collection tool with several key properties:

Perfstat comes in exactly two flavors:

Supported platforms:


QUESTION 46


Which three /etc/snapmirror.conf entries will support synchronous or semi-synchronous SnapMirror?

A. FilerA:source_vol FilerB:destination_vol visibility_interval = lhr, outstanding = 3ms, cksum=crc32 synsB. FilerA:source_vol FilerB:destination_vol 0-55/5 * * *C. FilerA:source_vol FilerB:destination_vol syncD. FilerA:source_vol FilerB:destination_vol outstanding=3s sync

Correct Answer: ACDSection: (none)Explanation

Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man5/na_snapmirror.conf.5.html Each relationship entry of the /etc/snapmirror.conf file is a single linecontaining space-separated fields.The entry has this format:Source destination arguments schedule scheduleThis is the schedule used by the destination node for updating the mirror. It informs the SnapMirror scheduler when transfers will be initiated. The schedule field cancontain the word sync to specify fully synchronous mirroring, semi-sync to specify semi-synchronous mirroring, or a cron-style specification of when to update themirror.

visibility_intervalThe value for this argument is a number optionally followed by the suffixes: s (seconds), m (minutes) or h (hours). If a suffix is not specified, value is interpreted asseconds. This argument controls the amount of time before an automatic snapshot is created on the source volume that is synchronously mirrored. The value is thenumber of seconds between automatically created snapshots. The default value is 3 minutes. A small number here can negatively affect the performance of themirror. This argument is ignored for asynchronous mirrors.

Outstanding (deprecated)This argument controls the performance versus synchronicity trade-off for synchronous mirrors. The value for this argument is a number followed by the suffixes:ops (operations), ms (milliseconds) or s (seconds). Setting a value less than 10s configures the mirror to run in fully synchronous mode. Setting a value greater thanor equal to 10s configures the mirror to run in semi-synchronous mode. This argument is ignored for asynchronous mirrors. Please note that this is a deprecatedoption. Use the schedule field to specify the synchronous mode for the mirror.

cksum


This controls which checksum algorithm is used to protect the data transmitted by SnapMirror. Currently supported values are "none", "crc32c", and"crc32c_header_only". The value "crc32c_header_only" has been added only for volume SnapMirror and is not supported for synchronous SnapMirror and qtreeSnapMirror.


QUESTION 47Which three are valid LUN commands? (Choose three)

A. lun cloneB. lun copyC. lun moveD. lun renameE. lun snap

Correct Answer: ACESection: (none)Explanation


The following commands are available in the lun suite:

QUESTION 48Which three items are NFS resources for export? (Choose three.)



A. aggregateReal 40Netapp NS0-155 Exam

B. directory/qtreeC. fileD. subnetE. volume

Correct Answer: BCESection: (none)Explanation

Explanation/Reference:Explanation:You can export any file path. Implicitly file paths are filesystem objects. You can export a directory, a qtree, a volume or even a file.

QUESTION 49Data ONTAP 8.0 7-Mode supports SMB 2.0 in Windows Vista and Windows Server 2008.

A. TrueB. False


Explanation/Reference:Explanation:http://www.netapp.com/us/system/pdf-reader.aspx?m=tr-3740.pdf&cc=us

SMB 2.0 support was included in Data OnTap 8.1.

QUESTION 50In a tape environment after a SnapRestore reversion of a volume, incremental backup and restore operations on the file or volume cannot rely on the timestamps todetermine what data needs to be backed up or restored. Which course of action ensures correct incremental backups?

A. Perform a base-level backup of the volume after you restore it.B. Reboot the storage system to reset timestamps back to their original times before the reversion.C. Take a new snapshot of the volume to create new base-level timestamps for the incremental backup.


D. Take a new snapshot of the volume to create new base-level timestamps for the incremental backup, and then perform a base-level backup of the volume afteryou restore it.




A baseline (aka "full") backup is always required before valid incremental backups can be made.

QUESTION 51Which changes the NDMP password on the Open System SnapVault agent?

A. passwordB. password <new_password>C. svpasswd <new_password>D. svpassword <new_password>


Explanation/Reference:Explanation:https://kb.netapp.com/support/index?Page=content&id=2010134&actp=LIST_RECENT&viewlocale=en_US&searchid=1296570465177 The svpassword command is available on the OSSV host as partof the agent binaries in the path <INSTALL_PATH>\netapp\snapvault\bin.

QUESTION 52Which are three characteristics of an iSCSI or FCP SAN implementation? (Choose three.)

A. A LUN can be converted into a VLD.B. LUNs can be accessed using the FCP protocol.C. LUNs can be accessed using the iSCSI protocol.


D. Block services are associated with an iSCSI or FCP SAN environment.

Correct Answer: BCDSection: (none)Explanation

Explanation/Reference:Explanation:Sadly, you cannot convert a LUN into a Vulcan Language Dictionary.

QUESTION 53To determine the version of Data ONTAP in which a bug has been fixed, use the NOW site _______ utility. (Choose two.)

A. AutoSupportB. Bugs OnlineC. NetApp DiagnosticsD. Release ComparisonE. System Configuration Guide


Explanation/Reference:Explanation:This question is out of date, but its still on the exam as of Sept2013! NOW has been replaced with support.netapp.com.

You should be very familiar with what AutoSupport does. Also if you have done any research, you know that the System Configuration Guide is an invaluable toolthat you will use regularly. Neither of those are related to bugs.

Bugs Online (BOL) is located at http://support.netapp.com/NOW/cgi-bin/bol/ Bugs Online provides a suite of tools to help manage and resolve your bug issues.


The Release Bug Advisor is located athttp://support.netapp.com/NOW/cgi-bin/relrec

There is also a Version Comparison tool available athttps://communities.netapp.com/docs/DOC-8168/diff?secondVersionNumber=8


QUESTION 54Which two commands on the storage system allow you to gather detailed statistics about network interfaces, including basic information about networkconnections? (Choose two.)

A. ifstat -aB. netdiag -nC. netstat -iD. sysstat 1


Explanation/Reference:Explanation:ifstat -a provides detailed statistics (multiple pages) about all network interfaces. netstat -i provides a list of connections and open network sockets (listeners).netdiag -n will perform a diagnostic but does not provide detailed statistics about networking. sysstat 1 will provide performance statistics but not detailed statisticsabout networking.

QUESTION 55For automatic user name mapping to occur for a CIFS and UNIX user name that are the same, you must do what?

A. Enter the CIFS user in the NIS database.B. Enter the user names in the /etc/hosts.equiv file.C. Use both a NIS server and a Domain Controller in the network.D. Nothing: mapping will occur if user name authentication is available.


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196993/html/GUID-09C7812F-E6EA-47C6-AB79- EAB803E7A8EB.html

If the user names in the UNIX password database are identical to the Windows names, you need not provide the mapping information in the /etc/usermap.cfg file.

QUESTION 56If the security style is set to UNIX, CIFS client file access is determined by ___________.


A. NT ACLsB. the last client to set permissionsC. the mapped UNIX UID/GID of the CIFS client and the UNIX file permissionsD. This is not allowed: A CIFS client cannot access files in a path set to a security style of UNIX


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196993/html/GUID-09C7812F-E6EA-47C6-AB79- EAB803E7A8EB.html

For Data ONTAP to obtain the UID and GIDs for a CIFS user, it must first determine the user's UNIX-style name. It does this through user mapping.

QUESTION 57NTFS allows file access based on ___________.


A. NT ACLs and SID.B. NT ACLs and UNIX permissions.C. SID and password.D. UNIX permissions.



In OnTap 8.0, when NTFS security style is used, only Windows style security objects are used. For CIFS clients, security is handled using Windows NTFS ACLs.For NFS clients, the NFS UID (user id) is mapped to a Windows SID (security identifier) and its associated groups. Those mapped credentials are used todetermine file access, based on the NFTS ACL.

QUESTION 58


UNIX allows file access based on __________.

A. GID or UID and ACLs.B. GID or UID and UNIX permissions.C. NT ACLs and SID.D. NT ACLs and UNIX permissions.



* Unix-like operating systems identify users within the kernel by an unsigned integer value called a user identifier, often abbreviated to UID or User ID. The range ofUID values varies amongst different systems; at the very least, a UID represents a 15-bit integer, ranging between 0 and

The UID value references users in the /etc/passwd file. Shadow password files and Network Information Service also refer to numeric UIDs. The user identifier hasbecome a necessary component of Unix file systems and processes.

* In POSIX-compliant environments the command-line command id gives the user's user identifier number as well as more information on the user account like theuser name, primary user group and group identifier (GID).


* Files and directories are owned by a user. The owner determines the file's owner class. Distinct permissions apply to the owner.Files and directories are assigned a group, which define the file's group class. Distinct permissions apply to members of the file's group members. The owner maybe a member of the file's group. Users who are not the owner, nor a member of the group, comprise a file's others class. Distinct permissions apply to others.The effective permissions are determined based on the user's class. For example, the user who is the owner of the file will have the permissions given to the ownerclass regardless of the permissions assigned to the group class or others class.

QUESTION 59Executing this command will have what effect?

Options wafl.default_security_style ntfs

A. It will set the security style of all files to be ntfs.B. It will change the security style of all qtrees to be ntfs.C. It will change the security style of all existing volumes to be ntfs.


D. It will set the security style of all newly created volumes to ntfs.


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_options.1.html

wafl.default_security_styleSpecifies the default security style assigned to a new volume. All qtrees created on the volume get this as their security style. Legal values for this option are ùnix',`ntfs', or `mixed'. The default value for this option is ùnix', unless the node is an NTFS-only node, in which case the default is `ntfs'.Note: if cifs setup is run after setting wafl.default_security_style, the filer will become an NTFS security style filer.

QUESTION 60To automatically export volumes and directories on storage system reboot, include them in the /etc/exports file.

A. TrueB. False


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196890/html/man5/na_exports.5.html

The /etc/exports file contains a list of export entries for all file system paths that Data ONTAP exports automatically when NFS starts up.

QUESTION 61Which exportfs command will temporarily export the resource while ignoring the options specified

Real 48Netapp NS0-155 Examin the /etc/exports file?

A. exportfs -aB. exportfs -i


C. exportfs -uD. exportfs -v



QUESTION 62Which two are Data ONTAP commands for displaying performance information? (Choose two.)

A. nfsstatB. perfstatC. sio_ntap_sollD. sysstat


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_sysstat.1.html https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_nfsstat.1.html

nfsstat and sysstat are OnTap commands used for performance information.sio_ntap_soll is not an OnTap command.

Perfstat is a GUI performance tool, not an OnTap command. Think of PerfMon for Windows to remind you that PerfStat is a Windows tool. Note how many of theONTAP performance commands end in stat.

QUESTION 63Which statement best describes the output of this command? sysstat -s 5

A. Display the default output every five seconds and terminate after five counts.B. Display extended output every five seconds and print a summary after five counts.C. Display extended output every five seconds and print a summary upon termination.

Real 49


Netapp NS0-155 ExamD. Display the default output every five seconds and print a summary upon termination.


Explanation/Reference:Explanation:http://backdrift.org/man/netapp/man1/na_sysstat.1.html -sDisplay a summary of the output columns upon termination, descriptive columns such as `CP ty' will not have summaries printed. Note that, with the exception of`Cache hit', the Àvg' summary for percentage values is an average of percentages, not a true mean of the underlying data. The Àvg' is only intended as a grossindicator of performance. For more detailed information use tools such as na_nfsstat, na_netstat, or statit.

QUESTION 64Which two are Data ONTAP commands for creating LUNs on a storage system? (Choose two.)

A. lun createB. lun configC. lun makeD. lun setup




The following commands are available in the lun suite:


Easy to use interactive mechanism for setting up initiator groups, LUNs, and mapping configuration.

QUESTION 65In a Fibre Channel configuration, the host's HBA is referred to as the ___________, and the storage system's HBA is referred to as the __________ .

A. initiator, targetB. primary, secondaryC. secondary, primaryD. target, initiator


Explanation/Reference:Explanation:http://en.wikipedia.org/wiki/SCSI_initiator_and_target

QUESTION 66Before running lun setup on the storage system, you must first create the igroup to which the initiator will be attached.

A. TrueB. False





lun setupEasy to use interactive mechanism for setting up initiator groups, LUNs, and mapping configuration.

QUESTION 67Which set of commands should be used for troubleshooting Ethernet connectivity problems from the storage system console?

A. ifstat, netdiagB. perfstat, tracertC. sysconfig - cr, sysstatD. dish shm_stats, sysstat


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_ifstat.1.html http://backdrift.org/man/netapp/man1/na_netdiag.1.html

ifstat - display device-level statistics for network interfaces netdiag - perform network diagnostics

QUESTION 68Which command displays the statistics for Ethernet network interfaces?

A. ifconfigB. ifstatC. sysconfigD. sysstat



Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_ifstat.1.html ifstat - display device-level statistics for network interfaces

QUESTION 69Real 53Netapp NS0-155 ExamWhich command is used to set the configuration of an Ethernet network interface?

A. ifconfigB. ifstatC. netstat - iD. sysconfig - v


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_ifconfig.1.html

ifconfig - Configures network interface parameters.

QUESTION 70What are three true statements about physical reallocation of data added in ONTAP 7.3? (Choose three.)

A. Use reallocate -p pathname to run the physical reallocate.B. Use aggr reallocate -p pathname to run the physical reallocate.C. Reinitialize any SnapMirror relationship for the new physical geometry.D. Volume Snapshots do not need to be deleted for the reallocate to run effectively.E. Dont run it on files, volumes, and LUNs that are in an aggregate created by a version of ONTAP earlier than 7.2.

Correct Answer: ADESection: (none)Explanation



Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_reallocate.1.html

The -p option requests that reallocation of user data take place on the physical blocks in the aggregate, but the logical block locations within a flexible volume arepreserved. Aggregate reallocation is not supported on aggregates created prior to Data ONTAP 7.2. Using the -p option may reduce the extra storage requirementsin a flexible volume when reallocation is run on a volume with snapshots. It may also reduce the amount of data that needs to be transmitted by SnapMirror on itsnext update after reallocation is performed on a SnapMirror source volume.


QUESTION 71Physical Reallocation of a SnapMirror source volume increases the amount of data to transfer for the next SnapMirror update.

A. TrueB. False


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_reallocate.1.html Using the -p option may reduce the extra storage requirements in a flexiblevolume when reallocation is run on a volume with snapshots. It may also reduce the amount of data that needs to be transmitted by SnapMirror on its next updateafter reallocation is performed on a SnapMirror source volume.

QUESTION 72Data ONTAP uses inodes in an active file system to reference ___________.


A. qtreesB. disk blocksC. file segmentsD. Snapshot copies

Correct Answer: BSection: (none)


Explanation

Explanation/Reference:Explanation:All data, whether file or block-based, resides in 4KB blocks on disk. A group of related blocks make up a file. To accommodate different file sizes, the WAFLfilesystem describes each file with reference pointers called inodes.

https://communities.netapp.com/servlet/JiveServlet/previewBody/5027-102-1- 6953/PS%20Tech%20Note%20018%20-%20maxfiles.pdf

Topic 2, Volume B

QUESTION 73Which command disables client access to Snapshot copies on a volume called flexvol1?

A. cifs shares -change flexvol1 -nosnapB. snap access flexvol1 offC. vol options flexvol1 nosnapdir onD. vol options flexvol1 snapdir offE. vol options flexvol1 snapdir on



QUESTION 74When Data ONTAP creates a weekly, nightly, or hourly snapshot, the value of n (as shown by the snap list command) is adjusted for all the weekly.n, nightly.n, orhourly.n Snapshot copies. The higher the value of n, the _________ the snapshot.

A. olderB. newerC. more important


D. least important

Correct Answer: A



Explanation/Reference:Explanation:where n is an integer. The most recent weekly Snapshot copy is weekly.0, weekly.1 is the next most recent weekly Snapshot copy, and so on.

https://library.netapp.com/ecmdocs/ECMP1113957/html/GUID-1D3B0C7D-D94E-43A3-9091- 5E76003E16EB.html

QUESTION 75A SnapVault secondary volume can contain up to ___ Snapshot copies for data protection.


A. 125B. 251C. 255D. Depends on capacity and number of disk drives



QUESTION 76Which three are pre-requisites for using SnapRestore? (Choose three.)

A. The volume to be reverted must be offline.B. The volume to be reverted must not be a SnapMirror destination.C. You must enter the SnapRestore license code before you can use it.D. Snapshot copies must exist on the storage system so that you can select a snapshot for the reversion.



Explanation/Reference:Explanation:You must meet certain prerequisites before using SnapRestore:- SnapRestore must be licensed on your storage system.- There must be at least one Snapshot copy on the system that you can select to revert.- The volume to be reverted must be online.


- The volume to be reverted must not be in use for data replication. http://hd.kvsconsulting.us/netappdoc/733docs/html/ontap/onlinebk/GUID-A14081A3-9270-47EE-A1C1-EC52D3ABDBD0.html

QUESTION 77What happens after you use SnapRestore to revert a volume to a specific snapshot?

A. You must bring the volume back online.B. The storage system automatically performs a snapshot for that volume.C. The Snapshot copies that are older than the snapshot you used are deleted.D. The Snapshot copies that are more recent than the snapshot you used are deleted.


Explanation/Reference:Explanation:After you revert a volume to a selected Snapshot copy, you lose all the Snapshot copies that were taken after the selected Snapshot copy.

https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-80FEDAF8-75FA-4E43-B683-


58C1F66B61E2.html


QUESTION 78Which three statements are true when using SnapRestore? (Choose three.)

A. The volume must be online.B. SnapRestore must be licensed before you can use it.C. The snap restore enable on option must be enabled.D. The volume to be reverted must not be a SnapMirror destination mirror.



QUESTION 79Which objects can be restored by a single SnapRestore command? (Choose three)

A. fileB. LUNC. qtreeD. volumeE. directory


Explanation/Reference:Explanation:SnapRestore on a file and volume:https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-1E99ACB2-5C69-4FFC-B115- 9D2951D109E9.html

SnapRestore on a LUN:https://library.netapp.com/ecmdocs/ECMP1196995/html/GUID-577EDC41-FEA0-4987-8F04- 55E736962FD1.html

Hint: snaprestore at the volume level or at the file level. LUNs are effectively files.

Real 59


Netapp NS0-155 Exam

QUESTION 80A volume is SnapMirrored hourly. You revert the volume using a snapshot that was created two days ago. Which command continues the relationship?

A. SnapMirror initializeB. SnapMirror quiesceC. SnapMirror resumeD. SnapMirror resyncE. SnapMirror update


Explanation/Reference:Explanation:You can use the snapmirror resync command to reestablish the connection between the source and the destination. This command is applied after the SnapMirrorrelationship between the source and destination is broken.https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-5D846D24-0903-4982-A429- 71AE5C0F9033.html

QUESTION 81When you are setting up SnapMirror, which three are replication pre-requisites? (Choose three.)


A. The source volume must be offline.B. SnapMirror must be licensed for each storage system.C. If you are replicating a volume, you must create a restricted volume to be used as the SnapMirror.D. The capacity of the SnapMirror destination must be greater than or equal to the capacity of the source destination volume.


Explanation/Reference:Explanation:You need to fulfill a set of prerequisites before you can use SnapMirror:


- You must purchase and enable the SnapMirror license. If the SnapMirror source and destination are on different systems, you must enable the SnapMirror licenseon each system.- For SnapMirror volume replication, you must create a restricted volume to be used as the destination volume.

SnapMirror does not automatically create a volume. For information about how to create volumes, see the section on organizing data using volumes and qtrees inthe Data ONTAP Storage Management Guide for 7-Mode.

- For SnapMirror volume replication, the destination system must use a version of Data ONTAP that is the same as or later than that of the SnapMirror sourcesystem.

https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-ED9C09EF-3F61-41FE-B8F1- 36356C5FEC5F.html

QUESTION 82Which command would you use to verify that the iSCSI service is running?

A. iscsi protocolB. iscsi serviceC. iscsi showD. iscsi status


Explanation/Reference:Explanation:iscsi status - displays current status of the iSCSI service.http://wafl.co.uk/iscsi/#sthash.GzOHA2Tj.dpuf


QUESTION 83Identify the two commands that could be entered on the SnapMirror destination storage system.(Choose two.)

A. snapmirror resyncB. snapmirror releaseC. snapmirror initializeD. options snapmirror.access on




QUESTION 84In a volume SnapMirror relationship, the source and destination volumes must be the same size.


A. TrueB. False


Explanation/Reference:Explanation:In an active volume SnapMirror relationship, the size of the source and destination file systems is identical.

However, the size of the destination volume can be larger than or equal to the size of the source volume. The size of the file systems must be identical to allow thesource to be restored from the destination.

https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-DE5EE692-81CF-4569-A703- 00B4E283CE99.html

QUESTION 85Which two statements apply to the fs_size_fixed volume option? (Choose two.)

A. The default setting is on.B. This option is automatically set to be on when a volume becomes a SnapMirrored volume.C. This option turns to off after the snapmirror break command is issued for the relationship.D. This option causes the SnapMirror destination volume to remain the same size and not grow or shrink when a SnapMirrored volume relationship is broken.

Correct Answer: BDSection: (none)


Explanation

Explanation/Reference:Explanation:This option causes the file system to remain the same size and not grow or shrink when a SnapMirrored volume relationship is broken, or when a vol add isperformed on it. This option is automatically set to be on when a volume becomes a SnapMirrored volume. It will remain on after the snapmirror break command isissued for the volume. This allows a volume to be SnapMirrored back to the source without needing to add disks to the source volume. If the volume size is largerthan the file system size, turning off this option will force the file system to grow to the size of the volume. The default setting is off.http://wafl.co.uk/vol-2/#sthash.DbEHR4YS.dpuf

QUESTION 86Real 63Netapp NS0-155 ExamWhich three statements apply to the SnapMirror visibility_interval argument? (Choose three.)

A. The default interval value is five minutes.B. The smallest interval value supported is 30 seconds.C. This variable controls the view of the data on the destination system.D. By setting a value, you specify the amount of time before an automatic snapshot is created on the source volume that is synchronously mirrored.


Explanation/Reference:Explanation:http://www.netapp.com/us/media/tr-3326.pdfhttp://backdrift.org/man/netapp/man5/na_snapmirror.conf.5.html http://hd.kvsconsulting.us/netappdoc/733docs/html/ontap/onlinebk/GUID-47724B21-7C7E-4AC9-A497-9505B42C27AF.html

With SnapMirror Sync and SnapMirror Semi-Sync, changes to the source volume do not show up immediately on the destination volume, even though the changeshave been replicated. The changes are first shown after the source system creates an automatic Snapshot copy of the source volume.Snapshot copies created on the source volume are immediately propagated to the destination volume. The automatic Snapshot copies are created every threeminutes by default.

To change the interval for automatic Snapshot copies, change the visibility_interval in the snapmirror.conf file; however, performance can degrade if set to a smallerinterval because frequentSnapshot copies cause additional processing such as cache consistency checking on the destination system.

There is also a disadvantage in setting this to a large value. When the connection between the systems has an outage and SnapMirror goes into asynchronousmode, SnapMirror uses the last common Snapshot copy to transition into synchronous mode. This means that all data from the last valid common Snapshot copy


will need to be replicated from the source to the destination storage system. If the visibility_interval is set to a large value, a large amount of data might have to betransferred and it might take longer time for SnapMirror to transition into synchronous mode. For these reasons, keep the default value of three minutes.

visibility_intervalThe value for this argument is a number optionally followed by the suffixes: s (seconds), m (minutes) or h (hours). If a suffix is not specified, value is interpreted asseconds. This argument controls the amount of time before an automatic snapshot is created on the source volume that is synchronously mirrored. The value is thenumber of seconds between automatically created snapshots. The default value is 3 minutes. A small number here can negatively affect the


performance of the mirror. This argument is ignored for asynchronous mirrors.

visibility_interval={xs | xm | xh}Determines the amount of time before an automatic Snapshot copy is created on the source volume that is being replicated using synchronous or semi-synchronous SnapMirror. When replicating synchronously or semisynchronously, using SnapMirror, changes to the source volume do not show immediately on thedestination volume, even though the changes have been replicated. The changes are shown only after the source system takes an automatic Snapshot copy of thesource volume. This event occurs every three minutes by default.

You can change the interval for automatic Snapshot copies, but performance can degrade if you set smaller intervals because Snapshot copies are taken moreoften. The smallest interval you can set is 30 seconds.Note: The s, m, and h suffixes specify seconds, minutes, and hours, respectively.

QUESTION 87Which keyword alone can be used to convert an asynchronous SnapMirror relationship to a synchronous SnapMirror relationship?


A. syncB. cksumC. src_conD. outstanding


Explanation/Reference:Explanation:To convert an asynchronous SnapMirror relationship to a synchronous SnapMirror relationship, on the administration host, edit the snapmirror.conf file on the


destination system to change the schedule to sync.

https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-A78BDBC9-610B-4555-A2DE- CE6861D92614.html

QUESTION 88Which option will allow a storage system to SnapMirror from this source system?

A. snapmirror.accessB. snapmirror.destinationC. options snapmirror.allow host =D. options snapmirror.access host =


Explanation/Reference:Explanation:The snapmirror.access option is the preferred method for controlling snapmirror access on a snapmirror source filer.http://www.wafl.co.uk/snapmirrorallow/#sthash.4Cb8IqqN.dpuf

QUESTION 89Which action will cause a currently in-sync SnapMirror relationship to fall out of sync?

A. Running snapmirror update on the source storage systemB. Running snapmirror release on the source storage systemC. Modifying the /etc/snapmirror.conf file for the relationship on the source storage systemD. Modifying the /etc/snapmirror.conf file for the relationship on the destination storage system Real 66

Netapp NS0-155 Exam



QUESTION 90Which two choices are used to configure a semi-synchronous SnapMirror relationship? (Choose two.)


A. throttleB. visibility intervalC. outstanding=3s in DOT 7.2D. using option semi-sync in DOT 7.3 and higher



QUESTION 91A NearStore license increases the amount of concurrent replication streams.

A. TrueB. False



QUESTION 92Which system is recommended as a secondary system for SnapVault?

A. IS1200B. DataFortC. NearStore VTLD. FAS with NearStore license




QUESTION 93Which statement applies to the Open Systems SnapVault Free Space Estimator utility?

A. This utility runs automatically after each transfer.B. This utility must be enabled on the secondary storage system.C. This utility determines if there is sufficient disk space available on the primary to perform an OSSV transfer.D. This utility determines if there is sufficient disk space available on the secondary to perform an OSSV transfer.




QUESTION 94The snapvault snap sched -x command is used to ____________.

A. schedule full backupsB. cancel scheduled backupsC. schedule baseline transferD. schedule incremental backups



QUESTION 95The snapvault snap create volume snapname command can be executed on the ___________.

A. open systemsB. primary system onlyC. secondary system only


D. secondary or primary systems



QUESTION 96The SnapVault secondary system allows you to keep a separate schedule of Snapshot copies from your primary system.

A. TrueB. False




QUESTION 97Which three statements apply to NearStore Personality license? (Choose three.)

A. It increases the storage capacity.B. It converts the destination storage system to a NearStore system.C. It requires the nearstore_option license on the destination storage system.D. It provides increased concurrent streams when the storage systems are used as destinations for SnapMirror and SnapVault transfers.




QUESTION 98Which Data ONTAP option sets system-wide throttling for all transfers?

A. options transfer.wide.enableB. options transfer.throttle.enableC. options replication.wide.enableD. options replication.throttle.enable



QUESTION 99The qtree specified for ____ must not exist on the secondary system before you run the ____ command.

A. pri_qtree_path, snapvault startB. sec_qtree_path, snapvault startC. pri_qtree_path, snapvault initializeD. sec_qtree_path, snapvault initialize


Explanation/Reference:Explanation:snapvault initialize is not a valid command


http://backdrift.org/man/netapp/man1/na_snapvault.1.html snapvault start -r [options] -S [prim_system:]prim_qtree_path [sec_system:] sec_qtree_pathpri_qtree_path is not a valid command

http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/onlinebk/GUID-DB31E1F4-60A8-4F34- A1C4-8F79754E4DE2.html

QUESTION 100


The snapvault restore command is run on the _________.

A. secondary system to push data to the primary systemB. primary system to pull data from the secondary systemC. secondary system to pull data from the primary systemD. secondary system to push data to the primary storage system


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_snapvault.1.html

The snapvault command has a number of subcommands. The set of subcommands differs on the primary and secondary.

On the primary, the subcommands allow users to configure and manage a set of snapshots for potential replication to the secondary, to abort replication transfers tothe secondary, to check status, to restore data from the secondary, and to release resources when a primary qtree will no longer be replicated to a secondary.On the secondary, the subcommands allow users to configure and manage the replication of primary paths to secondary qtrees, to configure and manage thesnapshot schedules which control when all the qtrees in a secondary volume are updated from their respective primary paths and how many snapshots to save, toabort transfers, to check status, and to release resources preserved to restart backups from a restored qtree.

QUESTION 101To restore a qtree protected with SnapVault from the secondary storage system to the primary

Real 71Netapp NS0-155 Examstorage system, you can ______________. (Choose two.)

A. restore to a non existing qtree with DOT 7. 2B. add the new qtree to the primary storage system with DOT 7.2C. overwrite the existing qtree on the primary storage system with DOT 7.3D. delete the existing qtree from the secondary storage system with DOT 7.3




Explanation:https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-DB31E1F4-60A8-4F34-A1C4- 8F79754E4DE2.html

You use the snapvault restore command to restore a backed-up qtree saved to the secondary system. Starting with Data ONTAP 7.3, you can restore the data to anexisting qtree on the primary system using baseline restore or incremental restore.

QUESTION 102The snapvault update command is only available on the secondary system.

A. TrueB. False


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_snapvault.1.html snapvault update [ -k n ] [ -s snapname ] [ -w ] sec_ondary_qtree Available onthe secondary only. Immediately starts an update of the specified qtree on the secondary.

QUESTION 103The OSSV agent on the primary system listens to TCP port 10000 for all SnapVault communications.

A. TrueB. False



Explanation/Reference:Explanation:https://communities.netapp.com/servlet/JiveServlet/previewBody/4791-102-2-13466/tr-3466.pdf

Pg 17OSSV hosts listen for communications from NDMP manager applications on port 10000 by default.

QUESTION 104


What security mechanism can an administrator use on an OSSV client to set permissions allowing backups to a SnapVault secondary system?

A. Via /etc/hosts.equiv fileB. QSM access list modifiable via svconfiguratorC. Contents inside a file called access and located in OSSV /snapvault/etcD. MD5 based authentication between SnapVault primary and secondary, with changeable password



QUESTION 105Which tool is available on an OSSV client to assist in starting or stopping the OSSV service, modifying NDMP settings, enabling debugging, and capturing tracefiles?

A. Operations ManagerB. Protection ManagerC. Svconfigurator GUID. svdebug.exe


Explanation/Reference:Explanation:http://synergy-ds.com/netapp/tr-3466.pdf




QUESTION 106Which three statements are true about SnapLock volumes? (Choose three.)

A. SnapMirror supports SnapLock volumes.B. There are two types of SnapLock volumes.C. SnapLock volumes support per-file retention periods.D. In Data ONTAP 7.2.5.1 and later, SnapLock Compliance volumes are not supported on the V- Series controller with NetApp Storage.

Correct Answer: ABCSection: (none)Explanation

Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196889/html/GUID-8ACE3CAB-D338-4AFC-A530-


0D0FEC3B9F94.html

The snaplock command manages compliance related functionality on the system. A volume created using the vol command (see na_vol(1)) is a snaplock volumewhen either the enterprise or compliance option is chosen.

Enterprise and compliance SnapLock volumes allow different levels of security assurance. https://library.netapp.com/ecmdocs/ECMP1196889/html/GUID-D4533C47-441D-41AB-A8A2- 272A2BFC431C.htmlSnapLock operates fundamentally at the file level.

QUESTION 107Snapshot copies for SnapLock volumes are deleted automatically according to the retention count set in the Snapshot schedule.

A. TrueB. False




Explanation:https://library.netapp.com/ecmdocs/ECMP1196889/html/GUID-83A15F85-92A1-4EA8-A9EC- B9E0E2269E37.html

QUESTION 108A volume SnapMirror relationship is allowed between two SnapLock Compliance volumes if the destination volume has unexpired WORM files.

A. TrueB. False


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196889/html/GUID-4B97B80F-D208-4154-95BF- D7FF9F5BEE11.htmlA volume SnapMirror relationship is not allowed between two SnapLock Compliance volumes if


the destination volume has unexpired files.

QUESTION 109What is the maximum number of disk shelves per loop in a fabric-attached MetroCluster?

A. 1B. 2C. 4D. 6


Explanation/Reference:Explanation:You can cable a maximum of two disk shelves on each loop https://library.netapp.com/ecm/ecm_download_file/ECMP1210206

QUESTION 110


Which command displays the disk ownership for both CPU modules in a FAS2020 system?

A. disk own -sB. disk show -vC. vol status -rD. disk display r


Explanation/Reference:Explanation:disk show [ -o <ownername> | -s <sysid> | -n | -v | -a]

Used to display information about the ownership of the disks. Available only on systems with software-based disk ownership. -o lists all disks owned by the filer withthe name <ownername> -s lists all disks owned by the filer with the serial number <sysid> -n lists all unassigned disks. -v lists all disks. -a lists all assigned disks.


QUESTION 111To remove a cluster setup, you must perform these steps:

1. Type cf disable.

2. Unlicense cluster.

3. Remove partner entries for network interfaces from the /etc/rc file.

4. Halt and make sure the partner-sysid is blank.

5. Power down and remove the cluster interconnect card.

6. Perform steps 1-5 above on the partner node.

A. TrueB. False

Correct Answer: A



Explanation/Reference:Explanation:For a detailed breakdown of the procedure see the following KB https://kb.netapp.com/support/index?page=content&id=1011576

QUESTION 112You are troubleshooting a clustered failover problem at a customer site. The customer explains that both storage systems were NFS mounted onto the Solaris host.While in takeover mode, you attempt to create a file on the NFS mount point for the inaccessible system, but you get the following error:

NFS server filer2 not responding still trying.

When not in takeover mode, both storage systems operate normally and you do not get the error. You perform a "cf giveback" and you can now create a file overNFS on both systems. What should you do first to resolve this issue?

A. Replace the NIC adapter.B. Submit a new bug report.C. Use the cluster-config-checker.cgi to identify the problem and corrective action.D. Replace the cluster interconnect card and run diagnostics "all" to ensure proper system operation.



Explanation/Reference:Explanation:This question implies that there is an issue with the clustering of the two controllers. Since this is the case you will want to run the cluster configuration checker toidentify and resolve any issues.

https://library.netapp.com/ecmdocs/ECMM1278349/html/upgrade/upgrading/concept/c_oc_upg_b 4_active2.html

QUESTION 113Each storage system in a cluster must have network access to the __________.

A. InternetB. cluster partnerC. same administration


D. host same collection of subnets


Explanation/Reference:Explanation:All the network ports should be assigned correct port roles, and all the network ports should be in the same subnet.https://library.netapp.com/ecm/ecm_download_file/ECMP1196907

QUESTION 114One method of configuring an interface for takeover is to enter ifconfig interface partner address at the command line. To make this configuration persistent acrossreboots, you must enter this information in the _____ file for each system.

A. /etc/rcB. /etc/hostsC. /vol/vol0/homeD. /vol/vol0/mount


Explanation/Reference:Explanation:Startup commands for your storage system are stored in the /etc/rc file. The /etc/rc file contains


commands that the storage system executes at boot time to configure the system.

Commands in the /etc/rc file configure the storage system to:Communicate on your networkUse the NIS and DNS servicesSave the core dump that might exist if the storage system panicked before it was booted

https://library.netapp.com/ecmdocs/ECMM1278265/html/sysadmin/accessing/concept/c_oc_accs_ systemstartup-etc-rc-file.html#c_oc_accs_system-startup-etc-rc-file


QUESTION 115What is the maximum distance between a standard clustered pair at 2Gbps?

A. 10 metersB. 50 metersC. 100 metersD. 500 meters


Explanation/Reference:Explanation:https://communities.netapp.com/servlet/JiveServlet/previewBody/4803-102-1-6405/tr-3548.pdf

The maximum cable length supported for 2Gbps is 500m, the same as the max cable length between a NetApp storage system and a FC switch.

Stretch MetroCluster (sometimes referred to as nonswitched) is simply an active-active configuration that can extend up to 500m depending on speed and cabletype. It also includes synchronous mirroring (SyncMirror®) and the ability to do a site failover with a single command. See Figure 2. Additional resiliency can beprovided through the use of multipathing.



QUESTION 116In an active/active configuration in takeover mode, the surviving controller interfaces will reflect the identity of the ________.


A. local interfaces onlyB. failed partner interfaces onlyC. local and failed partner interfacesD. interfaces as defined in the /etc/rc file


Explanation/Reference:Explanation:In takeover mode, this network interface assumes the identity of the network interface on the partnerhttp://www.wafl.co.uk/tag/ifconfig/#sthash.3rsjaDZD.dpuf

For the partner interface configuration to be persistent across reboots, you must include the ifconfig command in the /etc/rc file


http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/nag/GUID-525FCF4E-109D-4E6F-9256- C6E56438CA9A.html

QUESTION 117When using SnapRestore to restore a single LUN, the LUN must be ___________.


A. exported and accessibleB. mapped to a Windows serverC. mounted on a hostD. taken offline or unmapped

Correct Answer: DSection: (none)


Explanation

Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196995/html/GUID-577EDC41-FEA0-4987-8F04- 55E736962FD1.html

Always unmount the LUN before you run the snap restore command on a volume containing the LUN or before you run a single file SnapRestore of the LUN. For asingle file SnapRestore, you must also take the LUN offline.

QUESTION 118For aggregates or traditional volume SyncMirror to work correctly, the configuration of each plex should be identical with regard to ____________.

A. NVRAMB. Mirrored Snapshot copiesC. RAID groups and disk sizesD. NDMP and Snapshot copies


Explanation/Reference:Explanation:SyncMirror is essentially a RAID-1 mirror; hence the name. The best practice is to mirror storage of equal performance; i.e. identical RAID groups and disk sizes(number of spindles, IOPS). If you were to mirror two storage devices of different performance, the slower device would be the limiting factor.


QUESTION 119What happens when two aggregates are rejoined?

A. It is not possible to rejoin aggregates.B. Data ONTAP will always retain data from the newest aggregate.C. Both aggregates revert to the last common snapshot before the split.D. You will have a large new aggregate containing all volumes from both aggregates.E. One of the aggregates will be overwritten and you will lose any data changed on it after the split.

Correct Answer: E



Explanation/Reference:Explanation:When you rejoin split aggregates, Data ONTAP mirrors the data from one aggregate to the other and destroys data that existed on that aggregate before the rejoin.

https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-B9CB3DA8-E1AF-4BAC-A85B- 64C009010F4A.html

QUESTION 120You cannot remove the SyncMirror license if one or more mirrored volumes exist.

A. TrueB. False


Explanation/Reference:Explanation:You cannot disable the SyncMirror license if mirrored aggregates exist and are online.

http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/onlinebk/GUID-5058FDA7-68AE-4693- B343-0E9FFEDFC86C.html


QUESTION 121A mirrored volume has a failed disk, but there are no available spares in the pool from which the degraded plex was built. Data ONTAP will __________.

A. halt all operations to volumes in that poolB. choose spare disks to reconstruct from the opposite poolC. warn you that there are no available spares from the proper poolD. "halt" after 24 hours if spare disks are not added to the proper pool



Explanation/Reference:Explanation:Both `warn you that there are no available spares from the proper pool' and `halt after 24 hours if spare disk are not added to the proper pool' are correct answers.However, since Data ONTAP alerts you first, 'warn you that there are no available spares' is the best answer. https://library.netapp.com/ecm/ecm_download_file/ECMP1196912

QUESTION 122The required hardware to add SyncMirror to an existing system would be ____________.

A. disk shelves and cluster interconnectB. disk shelves and termination switchesC. disk shelves, Ethernet adapters, and cablingD. disk shelves, Fibre Channel adapters, and cabling




QUESTION 123Which two are true when creating a SyncMirror volume? (Choose two.)


A. The disks selected for Plex 0 and Plex 1 must come from the same disk shelf.B. The disks selected for Plex 0 and Plex 1 must come from the same disk pools.C. The number of disks added must be an even number and equally divided between the two plexes.D. The disks are selected first on the basis of equivalent bytes per sector (bps) size, then on the basis of the size of the disk. If there is no equivalent-sized disk,

Data ONTAP takes a larger capacity disk and right-sizes it.


Explanation/Reference:Explanation:The rules for the selection of disks or array LUNs, for using as mirrored aggregates, are as follows:Disks or array LUNs selected for each plex must be in different pools. The same number of disks or array LUNs must be in both the plexes. Disks are selected firston the basis of equivalent bytes per sector (bps) size, then on the basis of the size of the disk.If there is no equivalent-sized disk, Data ONTAP uses a larger-capacity disk, and limits the size to make it identically sized.Data ONTAP names the plexes of the mirrored aggregate.

https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-F5F241AF-50C0-4FF3-8C01- 96958581C4D9.html

QUESTION 124After issuing the aggr split aggr0/plex0 aggrNew command ____________.

A. there is a new plex called aggrNewB. there are two new plexes, plex0 and plexNewC. there is a new mirrored aggregate called aggrNewD. there are two unmirrored aggregates, aggr0 and aggrNewE. flexible volumes are evenly split between aggr0 and aggrNew Real 84

Netapp NS0-155 Exam


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_aggr.1.html aggr split aggrname/plexname new_aggrnameRemoves plexname from a mirrored aggregate and creates a new unmirrored aggregate named new_aggrname that contains the plex. The original mirroredaggregate becomes unmirrored. The plex to be split from the original aggregate must be functional (not partial), but it could be inactive, resyncing, or out-ofdate.


Aggr split can therefore be used to gain access to a plex that is not up to date with respect to its partnerplex, if its partner plex is currently failed.

If the aggregate in which plexname resides is embedded in a traditional volume, aggr split behaves identically to vol split. The new aggregate is embedded in a newtraditional volume of the same name.The aggregate in which plexname resides must contain exactly one flexible volume, aggr split will by default rename the flexible volume image in the split-off plex tobe the same as the new aggregate.If the original aggregate is restricted at the time of the split, the resulting aggregate will also be restricted. If the restricted aggregate is hosting flexible volumes, theyare not renamed at the time of the split. Flexible volumes will be renamed later, when the name conflict is detected while bringing an aggregate online. Flexiblevolumes in the aggregate that is brought online first keep their names. That aggregate can be either the original aggregate, or the aggregate resulting from the split.When the other aggregate is brought online later, flexible volumes in that aggregate will be renamed.

If the plex of an aggregate embedded within a traditional volume is offline at the time of the split, the resulting aggregate will be offline. When splitting a plex from anaggregate that hosts flexible volumes, if that plex is offline, but the aggregate is online, the resulting aggregate will come online, and its flexible volumes will berenamed. It is not allowed to split a plex from an offline aggregate. A split mirror can be joined back together via the -v option to aggr mirror.

QUESTION 125Normally, before you split a SyncMirror volume, you ensure that both plexes are _______ and _______.

A. offline, quiescedReal 85Netapp NS0-155 Exam

B. online, consistentC. online, normalD. restricted, offline


Explanation/Reference:Explanation:Ensure that both plexes of the mirrored aggregate you are splitting are online and operational.

https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-DE08C404-6E9C-47F6-A72E- CDEE2043408C.html

QUESTION 126You can avoid data corruption when you issue the cf forcetakeover -d command if the remote node is ________.

A. in a giveback mode


B. fenced off manuallyC. powered on and accessibleD. powered off and inaccessible



QUESTION 127You have connected all cables and disk shelves in a fabric-attached MetroCluster. Which command would verify that disks are connected and have dual paths?

A. disk showB. sysconfig -pC. vol status -rD. storage show disk -p


Explanation/Reference:Explanation:The operator must ensure that the partner filer does not become operational at any time while a filer is in a takeover mode initiated by the use of this commandhttp://backdrift.org/man/netapp/man1/na_cf.1.html


QUESTION 128When using MetroCluster in a forced takeover mode, identify two methods for restricting access to the disaster site node. (Choose two.)

A. Use manual fencing.B. Use the cf giveback -f command.C. Use the cf forcetakeover -d command.D. Turn off power to the disaster site node.E. Isolate the failed node from the surviving node.




QUESTION 129In a fabric-attached MetroCluster, a "site failure" is described as a __________.

A. failure of the Inter-Switch-Links (ISL)B. failure of the interconnect cableC. complete failure of the primary controller and disk shelvesD. malfunction of the Fibre Channel adapter on the cluster node


Explanation/Reference:Explanation:http://argoat.net/Blog/?p=1466

QUESTION 130Which two statements are true of the cf forcetakeover -d command? (Choose two.)

A. Mirrored volumes are implicitly split.B. Partner mailboxes must be available.C. The failed cluster node is powered off automatically.D. The surviving cluster node takes over the functions of the failed partner.





Explanation:https://communities.netapp.com/servlet/JiveServlet/previewBody/4803-102-1-6405/tr-3548.pdf

It is important to remember that this is the case only when a complete site is lost. In the case of a failed controller at one of the sites, a normal cluster failoveroccurs. Due to the operation of SyncMirror, there is also added protection from multidrive or complete shelf failures. When a storage controller fails in an active-active configuration, the partner detects the failure and automatically (if enabled) performs a takeover of the dataserving responsibilities from the failed controller.Part of this process relies on the surviving controller being able to read information from the disks on the failed controller. If this quorum of disks is not available,then automatic takeover won't be performed. In a MetroCluster configuration, manually executing a single command will allow a takeover to occur in spite of thelack of a quorum of disks. This "forced takeover" process breaks the mirrored relationships in order to bring the failed controller's volumes on line.

forcetakeover -d is very dangerous. Not only can it cause data corruption, if not used carefully, it can also lead to a situation where both the node and its partner areoperational (split brain). As such, it should only be used as a means of last resort when the takeover and forcetakeover commands are unsuccessful in achieving atakeover. The operator must ensure that the partner node does not become operational at any time while a node is in a takeover mode initiated by the use of thiscommand. In conjunction with RAID mirroring, it can allow recovery from a disaster when the two nodes in the HA pair are located at two distant sites.

QUESTION 131Protection Manager is an optional component of the Operations Manager that can be licensed and accessed from the NetApp Management Console (NMC).

A. TrueB. False


Explanation/Reference:Explanation:Operations Manager, Protection Manager and Provisioning Manager are all core products of the Unified Manager Platform suite.


QUESTION 132Operations Manager can monitor and manage only NetApp storage hosts that have the NetApp Host Agent installed.

A. TrueB. False



Explanation/Reference:Explanation:https://library.netapp.com/ecm/ecm_download_file/ECMM1278642 If no Host Agent is installed, how can the management tool query the host?

QUESTION 133Which are three valid data protection solutions? (Choose three.)

A. SnapVault toVolume SnapMirrorB. SnapVault toVolume SnapMirror to SnapVaultC. SnapVault toVolume SnapMirror toVolume SnapMirrorD. Volume SnapMirror to SnapVault


Explanation/Reference:Explanation:http://www.redbooks.ibm.com/redpapers/pdfs/redp4268.pdf

When you are using SnapVault in combination with Volume SnapMirror, it is important to understand their relationship with Snapshot. You cannot utilize SnapVaultto protect a Volume SnapMirror destination, because SnapVault and SnapMirror both use the same Snapshot copies; they cannot run simultaneously. Schedulesmust be managed to accommodate the interlock that keeps SnapVault and SnapMirror from stepping on each other.

QUESTION 134Protection Manager has policies that allow for tape-based protection as well as disk-based protection.


A. TrueB. False




https://library.netapp.com/ecm/ecm_download_file/ECMM1278633

QUESTION 135When using a Protection Manager policy to manage Open Systems SnapVault backups on a UNIX server, which three are valid objects to include in the data set?(Choose three.)

A. A fileB. A qtreeC. A directoryD. The entire client


Explanation/Reference:Explanation:Open Systems Snap Vault runs on servers, so the objects that can be selected for backup will be host-based.Qtrees are objects on the storage system.



QUESTION 136XML-files in /etc/stats/preset are used together with the sysstat command to customize the output.

A. TrueB. False


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_stats.1.html http://backdrift.org/man/netapp/man5/na_stats_preset.5.html

Data ONTAP provides some XML files that output a predetermined set of statistics that you can use without having to construct a script or type in a complicatedcommand on the command line.


The preset files are located in the /etc/stats/preset directory. To use a preset file, you add -p filename to your stats show or stats stop command line. You can alsoadd counters on the


command line. If any options you specify on the command line conflict with the preset file, your command line options take precedence.

You can also create your own preset files.

QUESTION 137When migrating from Data ONTAP 7G to Data ONTAP 8.0 7-mode, existing non-traditional aggregates are designated as ________.

A. 16-bitB. 32-bitC. 64-bitD. ForeignE. Unknown


Explanation/Reference:Explanation:Aggregates are never converted as part of an upgrade. An upgrade will not touch your data!

QUESTION 138To create a 64-bit aggregate, which optional switch/flag/parameter/option to the aggr create command must be included?

A. b 64B. B 64C. l 64D. L 64E. No optional switch/flag/parameter/option is needed because 64-bit aggregates are the default




The command to create a 64-bit aggregate is the same aggr create command that is present in Data ONTAP 7G for aggregate creation. The aggr create commandhas a new flag, -B, to specify


the type of aggregate to create. It takes a value of either 32 or 64 and creates the respective type of aggregate. Therefore the aggr create command with -B 64creates a 64-bit aggregate. The aggr create command without the -B flag by default creates a 32-bit aggregate.

Here are some commands for creating different aggregate types in Data ONTAP 8.0:Creating a 64-bit aggregate:aggr create aggr_64 -B 64 5Creating a 32-bit aggregate using B flag:aggr create aggr_32 -B 32 5Creating a 32-bit aggregate without using B flag:aggr create default_aggr_32 5Note: the man pages do not include this option in later versions of DOT because 64-bit is now the default.

QUESTION 139After upgrading to DOT 8.07-mode, you can convert existing 32-bit aggregates into 64-bit aggregates.

A. TrueB. False


Explanation/Reference:Explanation:http://www.ntapgeek.com/2011/12/how-in-place-expansion-works.html

To upgrade an aggregate in-place, the only available method is to add disks to expand the aggregate to >16TB.There is an obscure method using diag mode but that is not supported or mentioned in the exam content. The answer is always add disks to grow past 16TB, ormigrate.


QUESTION 140With 64-bit aggregates, the number of FlexVols that can be created on a storage controller is ____.


A. 500B. 1000C. 6400D. 64000


Explanation/Reference:Explanation:http://www.netapp.com/us/products/storage-systems/fas3200/fas3200-tech-specs.aspx

There is no easily remembered reason why its 500. Some people like to remember that there is one other question on the exam that requires you to remember anarbitrary number and the answer is also 500 (distance of a fiber interconnect at 2Gbps).

QUESTION 141The largest volume that can be created on a 64-bit aggregate is ___.

A. 10 TBB. 16 TBC. 64 TBD. Equal to size of the aggregate



Trick question.... Depends on the array and the maximum shelves and disks and aggregate size, which can change over time. But a volume can never be greaterthan the aggregate - save for a new feature in 8.2 called Infinite Volume that is not covered by this exam.


QUESTION 142Which command will show the FCP target(s) on a storage system?

A. fcp show adapterB. fcp show allC. fcp show -t


D. fcp status


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_fcp.1.html

fcp show adapter [ -v ] [ adapter ]If no adapter name is given, information about all adapters are shown. This command displays information such as nodename/portname and link state about theadapter. If the -v flag is given, this command displays additional information about the adapters.

QUESTION 143You are having problems accessing three recently-created LUNs. Given the output below, the reason is because all of the LUNs are using the same LUN ID of 0.

lun show -m

LUN pathMapped to LUNID

---------------------------------------------------

/vol/vol1/lun0 solaris-igroup0 0

/vol/vol1/lun1 windows-igroup 0

/vol/vol1/qtree1/lun2 aix-igroup 0

/vol/vol1/qtree1/lun3 linux-igroup 0

A. True


B. False


Explanation/Reference:Explanation:The 'lun' in the path is irrelevant. The 0 at the end of each statement denotes the LUN ID.LUN IDs must be unique per igroup.

QUESTION 144Real 95Netapp NS0-155 ExamUsing the output below, a co-worker determined that these are type "Solaris" LUNs. What would your determination be?

A. These are type "Solaris" LUNs.B. Not enough information is given here. Run the lun map command to get the information requested.C. Not enough information is given here. Run the lun show -v command to get the information requested.D. Not enough information is given here. Run the lun status command to get the information requested.




lun show [ -v | -m | -c ] [ all | mapped | offline | online | unmapped | staging | -g initiator_group | -n node | -l vol_name | lun_path ] Displays the status (lun_path, size,online/offline state, shared state) of the given LUN or class of LUNs. With the -v option supplied, additional information (comment string, serial number, LUNmapping, HA Pair Shared Volume Information) is also displayed. With the -m option supplied, information about lun_path to initiator_group mappings is displayed ina table format. With the -c option supplied, information about LUN cloning status is displayed.

A specific LUN can be indicated by supplying its lun_path. When an initiator_group is specified, status is reported for all LUNs that are mapped to the initiator group.When a node is specified, status is reported for all LUNs that are mapped to initiator groups which contain that node. When staging is specified, information aboutthe temporary LUNs preserved in the staging area is reported. When vol_name is specified, status is reported for all the LUNs in that volume. Mapped LUNs areones with at least one map definition. A LUN is online if it has not been explicitly made offline using the lun offline command.


QUESTION 145Which two commands would help you troubleshoot a LUN that cannot be accessed by a host? (Choose two.)

A. fcp show wwpnB. fcp wwpnC. igroup showD. lun show -errE. lun show -v

Correct Answer: CESection: (none)Explanation

Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_igroup.1.html


igroup show [ -v ] [ initiator_group ] Displays the nodes in an initiator group and their aliases, set with the fcp wwpnalias command. If no initiator_group is specified,the members of all initiator groups are displayed. You can use the -v option to get a verbose listing.

https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_lun.1.html

lun show [ -v | -m | -c ] [ all | mapped | offline | online | unmapped | staging | -g initiator_group | -n node | -l vol_name | lun_path ] Displays the status (lun_path, size,online/offline state, shared state) of the given LUN or class of LUNs. With the -v option supplied, additional information (comment string, serial number, LUNmapping, HA Pair Shared Volume Information) is also displayed. With the -m option supplied, information about lun_path to initiator_group mappings is displayed ina table format. With the -c option supplied, information about LUN cloning status is displayed.

QUESTION 146NetApp recommends that Fibre Channel switches that have both disk and tape connected to them should have separate zones created for each.

A. TrueB. False



Explanation/Reference:Explanation:http://www.brocade.com/downloads/documents/white_papers/Zoning_Best_Practices_WP-00.pdf

Separating the disk and tape devices into separate zones prevents disk RSCNs from impacting tape devices, which tend to be more sensitive to RSCNs. Bestpractice is to zone each initiator WWPN to each target WWPN individually.

QUESTION 147Which command shares out the directory /vol/vol2/home using the share name "netapp"?

A. cifs shares -add /vol/vol2 netappB. cifs shares -add /vol/vol2/home/netappC. cifs shares -add netapp vol/vol2D. cifs shares -add netapp /vol/vol2/home



Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_cifs_shares.1.html cifs shares -add sharename path

QUESTION 148The quota resize command only affects existing /etc/quotas file target entries, not new quota entries.

A. TrueB. False


Explanation/Reference:Explanation:http://backdrift.org/man/netapp/man1/na_quota.1.html

quota resize volumeAdjusts currently active quotas in the specified volume to reflect changes in the /etc/quotas file. For instance, if you edit an entry in /etc/quotas to increase a user'squota, quota resize will cause


the change to take effect. The volume name may be omitted if the system has only one volume. quota resize can be used only when quotas are already on.Because it does not rescan the file system to compute usage, quota resize is faster than turning quotas off and then on again. quota resize will apply all updatedentries in /etc/quotas; however, it will generally ignore newly added entries. A newly added entry will only take effect if the corresponding user or group has an activequota as a result of updating a file subject to default quotas.

QUESTION 149In Data ONTAP, the root user is exempt from these two quotas: _______. (Choose two.)

A. file quotasB. group quotasC. root quotasD. tree quotasE. user quotas


Correct Answer: BESection: (none)Explanation


QUESTION 150In Data ONTAP, both the Microsoft Windows Administrator and root are exempt from user and group quotas, but not from tree quotas.

A. TrueB. False


Explanation/Reference:Explanation:http://backdrift.org/man/netapp/man1/na_quota.1.html

User and group quotas do not apply to the root user or to the Windows Administrator account; tree quotas, however, do apply even to root and the WindowsAdministrator account.


QUESTION 151What command would create a LUN clone named lun0.clone from the LUN lun0 on the volume vol2?

A. lun clone start create /vol/vol2/lun0.clone -b /vol/vol2/lun0 snap_recentB. lun clone create /vol/vol2/lun0.clone -b /vol/vol2/lun0 snap_recentC. lun clone create /vol/vol2/lun0 -b /vol/vol2/lun0.clone snap_recentD. lun clone create /vol/vol2/lun0.clone -b /vol/vol2/lun0 -s snap_recent




Explanation:http://backdrift.org/man/netapp/man1/na_lun.1.htmllun clone create clone_lunpath [ -o noreserve ] -b parent_lunpath parent_snap

QUESTION 152Which iSCSI security method encrypts data between the initiator and the target?

A. IPSecB. CHAPC. LUN maskingD. Header and Data Digests


Explanation/Reference:Explanation:IPSec is an encryption transport that can be used to secure any IP traffic including iSCSI.

QUESTION 153You receive an error message from an iSCSI host stating that there is an authentication error.Which command would troubleshoot the failure?

A. iscsi security showB. iscsi security generateC. iscsi show authentication


D. iscsi security authentication


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_iscsi.1.html

iscsi security show


Display the default authentication and all the initiator specific authentication information. Hint: Remember that the iscsi command is mostly structured "iscsi nounverb", unlike the fcp command which is structure "fcp verb noun". Example: iscsi initiator show, fcp show initiator.

QUESTION 154Which three steps should be taken when troubleshooting a "stale nfs file handle" response to a NFS mount request on a Solaris system? (Choose three)

A. check the client's fstabB. check the /etc/sd.conf file on the clientC. check show mount -e to the storage system from the clientD. check for connectivity to the storage system from the clientE. check the output of the exportfs command on the storage system

Correct Answer: ADESection: (none)Explanation

Explanation/Reference:Explanation:The fstab file reflects the defined filesystem mount paths (including NFS mounts). Always check network connectivity when a problem arises with a network service.The exportfs command will display the active exports on the storage system.

QUESTION 155Which three configurations would increase data transfer rates in a volume SnapMirror environment for traditional volumes?

A. The destination volumes are flexible volumes.B. The destination and source contain disks of the same size.C. The destination and the source contain RAID groups of the same size.D. The destination and source contain the same number of raid groups.E. The destination and source storage systems are no father than 30 meters apart.



Explanation/Reference:Explanation:By aligning the performance of the source and destination, optimal data transfer (aka replication) rates can be attained. Flexvols don't matter, and there is no


measurable difference between the performance of a network over a 30m or 3m cable.

QUESTION 156Identify the two commands that could be entered on a system with a SnapMirror source. (Choose two)

A. snapmirror updateB. snapmirror statusC. snapmirror initializeD. options snapmirror.access all



http://www.uow.edu.au/~blane/netapp/ontap/cmdref/man1/na_options.1.htm update [ -S source ] [ -k kilobytes ] [ -s src_snap ] [ -c create_dest_snap ] [ -w ]destination For asynchronous mirrors, an update is immediately started from the source to the destination to update the mirror with the contents of the source.

For synchronous mirrors, a snapshot is created on the source volume which becomes visible to clients of the destination volume.

The update command must be issued on the destination node.status [ -l | -t | -q ] [ volume | qtree ... ]Reports status of all the SnapMirror relationships with a source and/or destination on this node. This command also reports whether SnapMirror is on or off. If anyvolume or qtree arguments are given to the command, only the SnapMirror relationships with a matching source or destination will be reported. If the argument isinvalid, there won't be any status in the output.initialize [ -S source ] [ -k kilobytes ] [ -s src_snap ] [ -c create_dest_snap ] [ -w ] destination Starts an initial transferover the network. An initial transfer is required before update transfers can take place.

The initialize command must be issued on the destination node. If the destination is a volume, it


must be restricted (see na_vol(1) for information on how to examine and restrict volumes). If the destination is a qtree, it must not already exist (see na_qtree(1) forinformation on how to list qtrees). If a qtree already exists, it must be renamed or removed (using an NFS or CIFS client), or snapmirror initialize to that qtree will notwork.snapmirror.access

This option determines which SnapMirror destination filers may initiate transfers, and over which network interfaces. When set to "legacy", SnapMirror uses theolder snapmirror.allow to determine access. The option value is a string containing an expression which provides the access filter. An example of the optionscommand for snapmirror.access is options snapmirror.access host=toaster,fridge. The default value is "legacy". See na_snapmirror(1) , na_snapmirror.allow(5) and


na_protocolaccess(8) for more details.

The snapmirror.allow file exists on the source filer used for SnapMirror.

QUESTION 157Which OSSV tool would you use to perform an OSSV unattended installation?

A. msipackageB. svunattendossvC. svconfigpackagerD. unattendpackager


Explanation/Reference:Explanation:The reference for this questionis an old version of a TR. It is likely that this question will be removed from the NSO-155 exam.The svconfigpackager is a binary in the OSSV client which can be used to create an unattended installation package using an answer file.

QUESTION 158Which command creates a new SyncMirror aggregate, letting Data ONTAP select the disk drives?

A. aggr create aggrX -d 12B. aggr create aggrX -m 12C. aggr mirror aggrX -m 12


D. aggr mirror aggrX -n 12


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_aggr.1.html The following commands are available in the aggr suite:


If you use the -d disk1 [ disk2 ... ] argument, the node creates the aggregate with the specified spare disks disk1, disk2, and so on. You can specify a space-separated list of disk names. Two separate lists must be specified if the new aggregate is mirrored. In the case that the new aggregate is mirrored, the indicateddisks must result in an equal number of disks on each new plex.

The disks in a plex are not permitted to span spare pools. This behavior can be overridden with the -f option.

The same option can also be used to force using disks that do not have matching rotational speed. The f option has effect only when used with the -d optionspecifying disks to use.

The -m option can be used to specify that the new aggregate be mirrored (have two plexes) upon creation. If this option is given, then the indicated disks will be splitacross the two plexes. By default, the new aggregate will not be mirrored.

aggr mirror aggrnameThe -n option can be used to display the command that the system will execute without actually making any changes. This is useful for displaying the automaticallyselected disks, for example.

QUESTION 159Which SyncMirror command mirrors an existing unmirrored aggregate where Data ONTAP selects the disk drive?


A. aggr mirror aggrYB. aggr mirror aggrY -mC. aggr mirror aggrT -d 12@144D. aggr mirror aggrY -m 12@144

Correct Answer: ASection: (none)


Explanation

Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_aggr.1.html

aggr mirror aggrname[ -f ][ -n ][ -v victim_aggrname ][ -d disk1 [ disk2 ... ] ]Turns an unmirrored aggregate into a mirrored aggregate by adding a plex to it. The plex is either newlyformed from disks chosen from a spare pool, or, if the -voption is specified, is taken from another existing unmirrored aggregate. Aggregate aggrname must currently be unmirrored. Use aggr create to make a new,mirrored aggregate from scratch.

Disks may be specified explicitly using -d in the same way as with the aggr create and aggr add commands.

The number of disks indicated must match the number present on the existing aggregate. The disks specified are not permitted to span disk pools. This behaviorcan be overridden with the -f option. The -f option, in combination with -d, can also be used to force using disks that have a rotational speed that does not matchthat of the majority of existing disks in the aggregate.

If disks are not specified explicitly, then disks are automatically selected to match those in the aggregate's existing plex.

The -v option can be used to join victim_aggrname back into aggrname to form a mirrored aggregate. The result is a mirrored aggregate named aggrname which isotherwise identical to aggrname before the operation.

Victim_aggrname is effectively destroyed. Victim_aggrname must have been previously mirrored withaggrname, and then separated via the aggr split command. Victim_aggrname must be offline. Combined with the -v option, the -f option can be used to joinaggrname and victim_aggrname without prompting the user.

The -n option can be used to display the command that the system will execute without actually making any changes. This is useful for displaying the automaticallyselected disks, for example.


QUESTION 160When troubleshooting a double disk failure with SyncMirror, you decide to remove and destroy a plex from a mirrored aggregate. What steps remove a plex from amirrored aggregate?

A. Take the aggregate offline and use the aggr destroy commandB. Take the aggregate offline and use the destroy -f command


C. Ensure the plex is online and use the aggr destroy plexname command.D. Ensure the plex is offline and use the aggr destroy plexname command.


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_aggr.1.html

aggr destroy { aggrname | plexname } [ -f ]Destroys the aggregate named aggrname, or the plex named plexname. Note that if the specified aggregate is tied to a traditional volume, then the traditionalvolume itself is destroyed as well. If an aggregate is specified, all plexes in the aggregate are destroyed. The named aggregate must also not contain any flexiblevolumes, regardless of their mount state (online, restricted, or offline). If a plex is specified, the plex is destroyed, leaving an unmirrored aggregate or traditionalvolume containing the remaining plex.

Before destroying the aggregate, traditional volume or plex, the user is prompted to confirm the operation. The -f flag can be used to destroy an aggregate,traditional volume or plex without prompting the user.

The disks originally in the destroyed object become spare disks. Only offline aggregates, traditional volumes and plexes can be destroyed.

QUESTION 161When replicating data between 32-bit and 64-bit aggregates, which two are allowed? (Choose two)

A. NDMPcopyB. QSM


C. vol copyD. VSM

Correct Answer: ABSection: (none)Explanation



http://wafl.co.uk/ndmpcopy/Because volume SnapMirror works at the block level, the source and destination must both be FlexVol volumes in the same aggregate type. The source anddestination of a volume SnapMirror relationship must either both be FlexVol volumes in 32-bit aggregates or both be FlexVol volumes in 64-bit aggregates.

Therefore you cannot create a volume SnapMirror relationship from a FlexVol volume in a 32-bit aggregate to a FlexVol volume in a 64-bit aggregate or vice versa.

Real 107


Netapp NS0-155 Exam

QUESTION 162What types of migration are supported from 32-bit to 64-bit?

A. migration of qtrees via QSMB. migration of volumes via ndmpcopyC. migration of volumes via SnapMirrorD. Both A & BE. Both B & CF. Both A & C


Explanation/Reference:Explanation:Volume SnapMirror operates at the physical block level. It replicates the contents of an entire volume, including all Snapshot copies, plus all volume attributesverbatim from a source (primary) volume to a target (secondary) volume. Implicitly, the destination volume will be the same as the source volume. Since C isincorrect, A & B must be correct.

Qtree snapmirror operates at the logical level, so it is unimportant that the destination system has a different volume configuration.

ndmpcopy is similarly operating with data already read from the volume and so the destination volume type is not a consideration.

QUESTION 163How do you migrate LUNs under volumes from 32-bit to 64-bit?

A. lrepB. ndmpcopyC. rsyncD. snapvault




Explanation:http://wafl.co.uk/ndmpcopy/Think of ndmpcopy as a sort of ftp for SAN. You can use it to copy files from one volume to


another. Because the file is read from one volume and written to another, the constraints of volume types are not an issue.

QUESTION 164Which three FAS deduplication features exist in ONTAP 8.0 7-Mode?

A. The deduplication fingerprint and change logs were moved to the root volume /etc/dedup directory.B. After breaking the deduplication volume destination mirror, the deduplication (a-sis) process continues uninterrupted.C. Qtree SnapMirror is supported on the destination for deduplication by enabling on the source, destination, or both systems.D. The fingerprint database and the change logs that the deduplication process uses are located outside the volume, in the aggregate.E. The deduplication schedule is not tied to a Qtree SnapMirror update, and can be configured just like the deduplication schedule for any volume.

Correct Answer: CDESection: (none)Explanation

Explanation/Reference:Explanation: Section: Data ProtectionNetApp also recommends that if deduplication is used on the source volume, then it should also be used on the destination volume. However, you are not restrictedusing deduplication on the source volume only.The deduplication schedule is not tied to the qtree SnapMirror update. In other words, the deduplication process does not automatically start at the completion of theqtree SnapMirror transfer.The fingerprint database and the change log files that are used in the deduplication process are located outside of the volume in the aggregate and are thereforenot captured in Snapshot copies http://www.netapp.com/us/media/tr-3505.pdf

QUESTION 165To manage SnapVault relationships with an NDMP management application, you must specify a:

A. directory pathB. volume and qtreeC. SnapVault license


D. username and password



Explanation/Reference:Explanation:Add a new backup user to the Backup Operators useradmin group list. Enter the following command:useradmin user add backupuser -g "Backup Operators"Generate an NDMP password for the new user. Enter the following command:ndmpd password backupuserThe NDMP password is used to authenticate the NetBackup media server to the storage system. This password is required for setup on the NetBackupmanagement station. https://library.netapp.com/ecmdocs/ECMM1278284/html/onlinebk/5snapv37.htm

QUESTION 166For OSSV sources, the qtree is the basic unit of SnapVault backups.

A. TrueB. False


Explanation/Reference:Explanation:https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-06C70D3B-9A06-4D20-B140- EB147B941BDA.html

The data structures that are backed up and restored through SnapVault depend on the primary system.On systems running Data ONTAP, the qtree is the basic unit of SnapVault backup and restore. SnapVault backs up specified qtrees on the primary system toassociated qtrees on the SnapVault secondary system. If necessary, data is restored from the secondary qtrees back to their associated primary qtrees.On open systems storage platforms, the directory is the basic unit of SnapVault backup. SnapVault backs up specified directories from the native system tospecified qtrees in the SnapVault secondary system.If necessary SnapVault can restore an entire directory or a specified file to the open systems platform.The destination system uses a slightly more disk space and directories than the source system.



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