ETERNUS DX80 S2, DX90 S2, DX410 S2, DX440 S2 and DX8700 S2
Common Features
Common Features ETERNUS DX S2 0 Copyright Fujitsu, Release May 2012
Contents (1)
Reliability RAID Functionality RAID and HDD Features Dynamic LUN Configuration Hard Disk Drives
Common Features ETERNUS DX S2 Copyright Fujitsu, Release May 2012 1
Contents (2)
Environmental Effort and Green Thin Provisioning Operability Miscellaneous
Common Features ETERNUS DX S2 Copyright Fujitsu, Release May 2012 2
Reliability
Redundancy of DE Access Path Data Protection by Data Block Guard
Common Features ETERNUS DX S2 Copyright Fujitsu, Release May 2012 3
Redundancy of DE Access Path Backend CM operation secures redundancy of DE access path In normal operation each CM
have a CM Expander that controls the disks in the DEs that are assigned to it CM Expander is a CM internal
component controlling the DE access
If one CM fails but the CM Expander is still functional, the surviving CM continues using the CM Expander of the failed CM to manage all disks
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
℃
・・・ ・・・
DE
MP
EXP ℃
℃ ・・・ ・・・
DE
MP
CM#0
CE
CM#1 IA
Fault CM Expander continues to
be used (= Backend CM
is running)
EXP
IOM6 IOM6 IOM6 IOM6 EXP EXP EXP EXP
EXP EXP
IA panel
Controls DE access
Controls the other DE access
4
Copyright Fujitsu, Release May 2012
Data Protection by Data Block Guard 8-byte check code is added to every 512-byte data to
control data integrity on the disk and in the cache Guarantees consistency of all stored data
Common Features ETERNUS DX S2
WRITE READ
Apply Check Code
User Data
CC: Check Code
A0 A1 A2
A0 A1 A2 CC CC CC
(2) (3)
(3)
User Data
DISK
A0 A1 A2
A0 A1 A2 CC CC CC
A0 A1 A2 CC CC CC
Controller Module
Written Data
ETERNUS DX
Write Check Code
Verify Check Code
(1)
Cache ECC Protected
Verify & delete Check Code (4)
(2)
(1)
(3)
5
RAID Functionality
Supported RAID Levels Comparison RAID 5+0 and RAID 5 Improved Reliability and Performance with RAID 5+0 Further Improved Reliability with RAID 5+0 Comparison Between RAID 5, 5+0 and 6 Stripe Depth
Common Features ETERNUS DX S2 Copyright Fujitsu, Release May 2012 6
Copyright Fujitsu, Release May 2012
Supported RAID Levels
Common Features ETERNUS DX S2
RA
ID 5
[4+1
] R
AID
5+0
2x[
2+1]
R
AID
6 [4
+2]
7
Copyright Fujitsu, Release May 2012
Comparison RAID 5+0 and RAID 5 RAID 5+0 provides high performance and large capacity by
striping the data and parity blocks over two RAID 5 configurations This increases the data transfer rate in comparison to a standard RAID 5
configuration
RAID 5 RAID 5+0
Because RAID 5+0 consist in practice of two RAID 5 sets it
enables a RAID Group with double the capacity of RAID 5 RAID 5 can be set up from 2+1 up to maximum 15+1 disk configuration RAID 5+0 can be set up from 2 x (2+1 up to maximum 15+1)
Common Features ETERNUS DX S2
RAID 5+0 (3D+1P) x 2
D3-1
D2-1
D1-1
P3
D2-2
D1-2
D3-2
P2
D1-3
D3-3
D2-3
P1
D3-4
D2-4
D1-4
P3”
D2-5
D1-5
D3-5
P2”
D1-6
D3-6
D2-6
P1”
Equivalent to RAID 5 (3D+1P) Equivalent to RAID 5 (3D+1P) 8 drives
Striping
P3 D3-1
D2-1
D1-1
D2-2
D1-2
D3-2
RAID 5 (3D+1P)
D3-3
D2-3
P1
P2
D1-3 4 drives
"D" = data area "P" = parity area
8
Copyright Fujitsu, Release May 2012
Improved Reliability with RAID 5+0 RAID 5+0 One drive from each of the RAID 5 sets could fail without loss of data After a single disk failure, RAID 5+0 has a shorter rebuild time than
RAID 5 with the same number of data disks • RAID 5+0 has less disks per RAID 5 set and therefore less data disks to use for
the re-calculation
Common Features ETERNUS DX S2
D3-1
D2-1
D1-1
D3-2
D2-2
D1-2
D3-3
D2-3
D1-3
RAID 5 (6D+1P)
D3-4
D2-4
D1-4
P3
D2-5
D1-5
D3-5
P2
D1-6
D3-6
D2-6
P1 7 drives
Rebuild time will be long due to increase in number of drives
"D" = data area "P" = parity area
Shorter rebuild time than 6D+1P
D3-1
D2-1
D1-1
P3
D2-2
D1-2
D3-2
P2
D1-3
D3-3
D2-3
P1
D3-4
D2-4
D1-4
P3”
D2-5
D1-5
D3-5
P2”
D1-6
D3-6
D2-6
P1”
4+4 drives Equivalent to RAID 5 (3D+1P) Equivalent to RAID 5 (3D+1P)
Small number of drives RAID 5+0 (3D+1P) x 2
9
Copyright Fujitsu, Release May 2012
Improved Performance with RAID 5+0 RAID 5+0 writes faster than RAID 6 due to lower load in writing RAID 6 needs more calculation time during write for double parities RAID 5+0 can recover from double disk failure providing the disks fail
from different RAID 5 sets
Common Features ETERNUS DX S2
RAID 6 (6D+2P)
D3-1
D2-1
D1-1
D3-5
D2-5
P1
D3-2
D2-2
D1-2
P3
D2-3
D1-3
Q3
D2-4
D1-4
D3-3
P2
D1-5
D3-4
Q2
D1-6
D3-6
D2-6
Q1 8 drives
Striping
RAID 5+0 (3D+1P) x 2
D3-1
D2-1
D1-1
P3
D2-2
D1-2
D3-2
P2
D1-3
D3-3
D2-3
P1
D3-4
D2-4
D1-4
P3”
D2-5
D1-5
D3-5
P2”
D1-6
D3-6
D2-6
P1”
8 drives
Faster data transfer with RAID5 (3D+1P) by striping
Equivalent to RAID 5 (3D+1P) Equivalent to RAID 5 (3D+1P)
- Two parity drives are created - High loads when writing data
Able to recover from two concurrent drive failures
Recover from single drive failure in each RAID 5 (3D+1P)
"D" = data area "P" = parity area
10
Copyright Fujitsu, Release May 2012
Further Improved Reliability with RAID 6 Tolerates two simultaneous hard disk failures in the same
RAID Group independent of the disk position RAID 5+0 can recover from double disk failure only providing the disks
do not fail in the same RAID 5 set This is advantageous when using large capacity hard disks that need a
long time for rebuild • For example Nearline SAS disks
Common Features ETERNUS DX S2
RAID 6 (6D+2P)
D3-1
D2-1
D1-1
D3-5
D2-5
P1
D3-2
D2-2
D1-2
P3
D2-3
D1-3
Q3
D2-4
D1-4
D3-3
P2
D1-5
D3-4
Q2
D1-6
D3-6
D2-6
Q1
Uses two different parity blocks for the recalculation of missing data
8 drives
Able to recover from two concurrent drive failures
Striping
"D" = data area "P", "Q" = parity area
11
Comparison Between RAID 5, 5+0 and 6 (1) RAID 6 has advantages in reliability RAID 5 has advantages in data efficiency RAID 5+0 has advantages in write performance
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Data efficiency
Write performance
RAID 5 RAID 6
Reliability
Write performance
RAID 5+0
RAID 5 RAID 6
RAID 5+0
*1; *2; *3 see next page
Reliability 1) Data efficiency 2) Write performance 3)
RAID 5 OK Very good Good RAID 5+0 Good Good Very good RAID 6 Very good Good OK
12
Comparison Between RAID 5, 5+0 and 6 (1) 1) Data Reliability
RAID 5: Is able to recover from single drive failure RAID 5+0: Is able to recover from double drive failure on the same RAID
set • One drive in each RAID array can fail
RAID 6: Is able to recover from double drive failure on the same RAID set
2) Data efficiency
When comparing equal sized data capacities
• RAID 5 (6+1) compared to RAID 5+0 (3+1) compared to RAID 6 (6+2)
3) Write performance
RAID 5+0 writes the two RAID 5 sets in parallel • RAID 5 (6+1) compared to RAID 5+0 (3+1)
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2 13
Stripe Depth Stripe depth can be set for RAID Group types 0, 1+0 and 5 Bigger stripe size improve random I/O performance by placing data
stripes more often within a single drive instead of across drives
14 Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
RAID5 (with default Stripe Depth) RAID5 (with expanded Stripe Depth)
Stripe size I/O request
RAID and HDD Features
Control of a Failed Disk Global and Dedicated Hot Spare Automatic Hot Spare Assignment S.M.A.R.T. Redundant Copy Triggered by S.M.A.R.T. Rebuild Priority Setting Quick Format Drive Patrol
Common Features ETERNUS DX S2 Copyright Fujitsu, Release May 2012 15
Control of a Failed Disk Two different modes are supported Rebuild
• ETERNUS DX rebuilds the data of a failed drive from the remaining drives and writes it to a Hot Spare • When no Hot Spare is available
ETERNUS DX rebuilds the data after the defective drive is replaced
• Redundancy of the RAID Group is recovered after rebuild is completed
Copy Back • After redundancy of the RAID
Group is re-established, data is copied back from the Hot Spare to the replaced drive
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
HS
Disk replacement
Failed
Failed
Without redundancy
Recover redundancy
New
Without redundancy
Recover redundancy
Failed Disk replacement
New
Rebuild
Copy Back
Rebuild Failed
HS
16
Global and Dedicated Hot Spare Dedicated Hot Spare (DHS) disk Has to be assigned to a specific
RAID Group When a disk of a RAID Group with
a Dedicated HS fails, then this Dedicated HS is selected and used to rebuild the RAID Group
Global HS (GHS) Used by all RAID Groups When a disk in any RAID Group fails
and there is no Dedicated HS available, a Global HS is used to rebuild the RAID Group
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
GHS
DHS
DHS
: Global Hot Spare
: Dedicated Hot Spare for RAID Group D
: Dedicated Hot Spare for RAID Group E
ETERNUS DX S2
RAID Group D
RAID Group E DHS
DHS
Failed
RAID Group C
RAID Group B
RAID Group A GHS
17
Automatic Hot Spare Assignment (1) ETERNUS DX systems search for an appropriate HS disk and
assign it to each RAID Group Three search algorithms are used Search 1
• Take a Hot Spare disk with the same capacity and matching rotation speed as the failed drive
• Search through drive numbers in ascending order Search 2
• Take a Hot Spare disk with matching rotation speed and larger capacity • Priority is given to HS disks with similar capacity as the failed drive
Search 3 • Take a Hot Spare disk with matching rotation speed • Faster rotating drives have a preference
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2 18
Automatic Hot Spare Assignment (2) This example shows the search algorithm for an automatic Hot
Spare disk assignment
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Priority Assignment
Hot Spare Search criteria
2.5" 300 GB 10k rpm
2.5" 450 GB 10k rpm
2.5" 600 GB 10k rpm
3.5" 450 GB 15k rpm
3.5" 2 TB
7.2k rpm
Disk#008 (HS)
Disk#007 (HS)
Disk#005 (HS)
Disk#004 (HS)
Disk#006 (HS)
1 2 3 4 5
Same number of rotations
Same capacity
Same number of rotations
Similar capacity
Same number of rotations
Larger capacity
Different number of rotations
Faster
Different number of rotations
Slower
Search 1 Search 2 Search 3
Disk#000 Disk#001 Disk#002 Disk#003
RAID Group
2.5" 300 GB 10k rpm
2.5" 300 GB 10k rpm
2.5" 300 GB 10k rpm
2.5" 300 GB 10k rpm
Failure
19
S.M.A.R.T. Self-Monitoring Analysis and Reporting Technology Built-in mechanism of the disk drive collecting various information
• ETERNUS DX monitors the SMART data to recognize early signs of disk failure Makes it possible to identify failing disk drives before data redundancy in
the RAID Group is lost • Redundant Copy is triggered when certain SMART alerts occur or thresholds
are exceeded Disk drives are not detached immediately when a threshold is exceeded
• First the data of this flagged disk is rebuilt to a HS disk • The flagged disk is still member of the RAID set • Only after the data rebuild has completed the flagged disk will be detached • After disk replacement the data from the Hot Spare disk will be restored with
the Redundant Copy function
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2 20
Redundant Copy Triggered by S.M.A.R.T. After a S.M.A.R.T error threshold is
reached, the disk is flagged and the Redundant Copy process starts A rebuild to a Hot Spare drive is
started automatically while redundancy is maintained
Flagged disk still a member of the RAID Group
The flagged drive is removed from the RAID Group and set faulty after the rebuild is completed
Redundant Copy started by S.M.A.R.T is interrupted immediately if another complete disk failure occurs and there are no further HS disks available
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Remove the failed drive
Hot Spare drive RAID 5 (4+1)
Kee
p re
dund
ancy
Incorporate the HS drive to RAID and remove the drive
showing signs of failure
HS
RAID 5 (4+1)
Restore data from a failed drive and write it to HS
HS
RAID 5 (4+1)
21
Rebuild Priority Setting Rebuilding priority can be set per RAID Group Priority setting determines the I/O precedence between host I/O and
Copyback / Redundant Copy function
22 Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Rebuild priority setting I/O precedence Remarks
Low (default) Host I/O is prioritized If there is no host I/O then the setting has no effect. Settings Middle and High degrade host I/O performance while achieving faster full redundancy of the RAID Group.
Middle Rebuild is prioritized over host I/O
High Rebuild is 2 - 3.5 times faster than with setting Low
Quick Format Host can access Volumes of a RAID Group while formatting of
a Volume is in progress (1) ETERNUS DX first creates a format control table
• To manage formatted and unformatted blocks (2) After the format control table is created
• The LUNs become accessible from hosts • ETERNUS DX starts the physical format for the Volumes from the first block
and process all blocks sequentially (3) If ETERNUS DX receives "Read/Write I/O" to any unformatted block,
the block is first formatted and then access is allowed NOTE: ETERNUS will continue Quick Format after a power cycle
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Offline Online E Read/Write Host view
Behavior of ETERNUS DX
Creation of format control table
Format Start Format Completed Read/Write Request One Point Format
Physical Format (Sequential)
Read/Write Completed
S
(1) (2)
(3)
23
Drive Patrol Drive Patrol improves hard disk reliability A background process reads
the data on drives If an error is detected, the faulty
data is recreated The recreated data is written to
another block on the same disk drive
Disks can be selected for Drive Patrol in ETERNUS Manager GUI by different categories, for example HS disks New installed disks Unused disks
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Parity
RAID Group
Error detection
Check of drive media
Read out
RAID Group
D 1 D 2 P D 3 D 1
Write back
D 1
24
Dynamic LUN Configuration
Dynamic LUN Expansion Logical Device Expansion LUN Concatenation RAID Migration Dynamic LUN Mirroring Automated Storage Tiering (AST)
Common Features ETERNUS DX S2 Copyright Fujitsu, Release May 2012 25
Dynamic LUN Expansion The ETERNUS DX Series is able to expand the capacity of
LUN (Logical Unit Number) without stopping the operation
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Expand Logical device expansion
LUN Concatenation
LUN0 New
added drive Current
RAID Group RAID 5 (4+1)
LUN0 Unused area
Expand RAID Group by "Logical Device Expansion"
RAID Group now RAID 5 (5+1)
LUN0
Expand LUN0 capacity by "LUN concatenation"
RAID Group RAID 5 (5+1)
26
Logical Device Expansion Expand capacity (free space) of a RAID Group by adding
unused disk drives RAID level can be changed
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Expands
Existing RAID Group RAID 5 (3+1)
Unused disks not assigned to any RAID Group
Same RAID Group RAID 5 (5+1)
27
LUN Concatenation LUN capacity can be expanded by using LUN concatenation Consolidates unused areas in the same or across multiple
RAID Groups for efficient use of drives NOTE: After LUN Concatenation it may be necessary to adapt
the Operating System and/or application to recognize the increased LUN size Maximum LUN capacity is 128 TB Minimum LUN capacity is 1 GB Maximum number of LUNs that can be concatenated is 16 Able to mix different RAID levels
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
RAID 5 450 GB x4
LUN1 600 GB
RAID 5 450 GB x4
Unused area 1.2 TB
RAID 5 450 GB x4
LUN1 600 GB
RAID 5 450 GB x4
LUN0 1.2 TB concatenate LUN2 600 GB
RAID Group 1 RAID Group 2
RAID-Grp1
RAID Group 2
LUN0 1.2 TB LUN2 with 1.8 TB
RAID Group 1
28
RAID Migration Enables data to be moved between different RAID Groups
without interrupting operation Migrate existing LUNs from a RAID Group to a different one Migration between different RAID levels RAID migration to expand LUN capacity Migration is transparent from server point of view DX80 S2, DX90 S2, DX410 S2 and DX440 S2 systems allow to migrate
concatenated LUNs
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Migrate data to large capacity drives
Migrate data to a high reliable RAID level
LUN 0
RAID 5 300 GB
Unused 600 GB
RAID Group 1
RAID Group 2
Unused 300 GB
LUN 0 RAID 5 600 GB
RAID Group 1
RAID Group 2
RAID 5 600 GB
Unused 600 GB
LUN 0
RAID Group 1
RAID Group 2
Unused 600 GB
RAID 1+0 600 GB
LUN 0 Mirroring
LUN 0
RAID Group 1
RAID Group 2
29
Automated Storage Tiering (AST) Optimizes storage resources by moving data to the most
appropriate disk drives and thus reduces overall storage and management costs Optimal drive selection brings better performance and storage cost
reduction Automatic data relocation during operation enables management cost
reduction Data in a Volume is allocated in units of sub-LUN Requires
ETERNUS SF Storage Cruiser Optimization license
30 Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Automatic data relocation
Access frequency
High
Low
SSD Fastest
Online drives Fast
Nearline drives Large capacity & inexpensive
A
C
B
LUN
A: Usage (IOPS) has increased B and C: Usage has decreased
Minimizes response time
Reduces storage cost
Hard Disk Drives
Support for Wide Range of HDDs Hard Disk Drive Overview Discontinued and New HDDs Two Types of Data Encryption Self Encrypting Drives (SED) Data Encryption Using Firmware
Common Features ETERNUS DX S2 Copyright Fujitsu, Release May 2012 31
Support for Wide Range of HDDs Eight drives must be installed in the ETERNUS DX8700 S2
when using the smallest configuration (4 DEs) Additionally one Hot Spare per Drive Enclosure
Enclosure backend connection is a SAS 2.0 interface with a speed of 6 Gbit/s Each hard disk drive has an embedded dual ported SAS 2.0 interface The different types of drives can be intermixed within the same enclosure
32 Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
SSD SAS Nearline SAS
Hard Disk Drive Overview SAS disk drives for mission critical data Enterprise performance and reliability
• 15k rpm 3.5"; 300 GB, 450 GB, 600 GB • 10k rpm 2.5", self encrypting (SED) and
non-encrypting; 300 GB, 450 GB, 600 GB, 900 GB
Reliable Nearline SAS disk drives: cost-efficient capacity More reliability with Nearline SAS compared with SATA II
• 24-hours/days vs. 8-hours/day • 5 years warranty vs. 2-3 years
High capacity, low cost, suits backup and archiving 7.2 krpm 3.5"; 1 TB, 2 TB, 3 TB 7.2 krpm 2.5"; 1 TB Enterprise SSDs provide best I/O per cost ratio Excellent random read and writes, lowest latency Good for highest IOPS demands 2.5" and 3.5"; 100 GB, 200 GB, 400 GB
33 Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Discontinued and New HDDs
34 Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
DX80S2 DX90 S2
DX80 DX90
DX410 S2 DX440 S2
DX410 DX440 DX8700 S2 DX8700
DX8400 SAS 15k rpm (3.5") 600 GB x x x - x -
450 GB x x x - x - 300 GB x x x - x -
FC 15k rpm (3.5") 600, 450, 300 GB - - - x - x SAS 10k rpm (2.5") - Without encryption
900 GB x - x - x - 600 GB x x x - x - 450 GB x x x - x - 300 GB x x x - x -
SED SAS 10k rpm (2.5") - With encryption
900 GB x - x - x - 600 GB x - x - x - 450 GB x - x - x - 300 GB x - x - x -
Nearline SAS 7.2k rpm (3.5") 3.0 TB x - x - x - 2.0 TB x x x - x - 1.0 TB x x x - x -
Nearline SAS 7.2k rpm (2.5") 1.0 TB x - x - x - Nearline SATA 7.2k rpm (3.5") 2.0, 1.0, 500 GB - - - x - x SSD (2.5" / 3.5") 400 GB x - x x x x
200 GB x x x x x x 146 GB - - - x - x 100 GB x x x - x - 73 GB - - - x - x
NOTE: Hard disks between generations are not compatible with each other. Hard disks for S2 models are compatible with each other.
Two Types of Data Encryption Disk encryption with SED (Self Encrypting Drive) No performance degrade compared to non-encrypting drives
Disk encryption by ETERNUS firmware Can be activated on a LUN basis Encryption algorithm can be chosen between Fujitsu's proprietary and
128-bit AES
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Encrypt. Encryption
Plain data
Encryption
Encryption
Encryption
Encryption
Encryption
Encryption
Encryption
Encryption
Encryption
Encryption
Encryption
Encryption
Data removal protection
Encryption setting and management
Server A Server B Server C
35
Self Encrypting Drives (SED) Authentication key for SED encryption set up with ETERNUS
Web GUI Encryption method is 256-bit
AES (Advanced Encryption Standard) Data is fully encrypted in the
drives The encryption engine guarantees
full disk interface bandwidth without affecting the performance
Transparent for the end user and the ETERNUS DX system
Data is encrypted in units of RAID Groups
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
CM
Cache
SED
Authentication key
(hash value) Encryption key
(Encrypted data)
Authentication key
(plain data)
Data (Encrypted)
1. Authentication
Authentication key
Data (Plain data)
2. decryption
3. Encrypts/ Decrypts data
36
Data Encryption Using Firmware Selectable via ETERNUS Web GUI Fujitsu's unique encryption algorithm 128-bit AES encryption
Encrypts user data in units of LUN Both encrypted and unencrypted
data can exist in the same RAID Group
Possible to encrypt an existing unencrypted Volume All disk types can be encrypted
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
CM
Disk
Encryption key (Encrypted)
Encryption key
(plain data)
Master key
Data (Plain data)
1. Decrypts key
Data (Encrypted)
Encryption buffer
CACHE
Data (Encrypted)
2. Encrypts/ decrypts
data
37
Environmental Effort and Green
Power Saving Eco-mode Saving Power and Space with Latest Drives Visualization of Power Consumption and Temperature
Common Features ETERNUS DX S2 Copyright Fujitsu, Release May 2012 38
Power Saving Eco-mode (1) Reduces power consumption When drives (RAID Groups) are used only a few hours per day
(for example for backup), Eco-mode is an effective way of saving power Drive spin down can be scheduled
• Drives are spun down if idle during the schedule time Drives are spun up automatically when accessed Can be managed with GUI or CLI of ETERNUS DX series
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
AM
12 on
off PM off
12 ・・・
・・・ ETERNUS DX
Data volume 600 GB SAS x 36
RAID 5 (5D+1P), 3 TB
All backup Volume drives are "ON" only for five hours a day Up to 15% power consumption reduction!!
Backup volume 1 TB Nearline SAS x 36
RAID 5 (6D+1P), 6 TB
5
39
Power Saving Eco-mode (2) Eco-mode allows the disks to be spun down for specified
periods and thus reduce the overall power consumption A schedule to spin up and spin down the disks can be set per RAID
Group
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2 40
Power Saving Eco-mode (3) Eco-mode and MTBF Eco-mode has a very small impact on the MTBF value
• For example, Eco-mode setting for spinning up and down is 3 times per day on each disk • In 5 years Eco-mode makes the disk to spin up and down a total of 5475 times which is
far less than the given MTBF • The disk manufacturer gives an MTBF of 50.000 spin up/down cycles
How long does it take to spin up the disks? Typical spin up time is
• SAS disk => 15 sec • Nearline SAS => 20 sec
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2 41
Saving Power & Space with Latest Drives ETERNUS DX systems use latest disk drive technology to
save power 2.5" disks have by nature lower power consumption, SSD disks very low Reduced physical size reduces system footprint and consequently data
center cooling costs
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Pow
er c
onsu
mpt
ion
per d
rive
capa
city
Driv
e ge
nera
tion
About 50 % reduction in two years
Pow
er c
onsu
mpt
ion SAS
Nearline SAS
(year)
450 GB
1 TB
600 GB
2 TB
200 GB SSD
2009 2010
3 TB
400 GB
900 GB
100 GB
42
2011
Visualization of Power and Temperature ETERNUS SF Storage Cruiser (optional software) Enables administration users to monitor power consumption and ambient
temperature data and visualize statistic information of each operation • Real time monitoring • History log is available by day, week or year • One or a group of ETERNUS DX systems can be monitored
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Storage management software ETERNUS SF
Storage Cruiser
Obtain power consumption and temperature of each
registered ETERNUS System
ETERNUS DX
43
Thin Provisioning
Introduction to Thin Provisioning Thin Provisioning Function Balancing Thin Provisioning Volume
Common Features ETERNUS DX S2 Copyright Fujitsu, Release May 2012 44
Introduction to Thin Provisioning Simplifies the creation and allocation of storage capacity System can be configured future proof instead of being bound to
currently available physical storage Application can use capacity-on-demand from a shared storage pool Administrator can monitor and replenish each Pool, not each Volume
Storage perceived by the application is larger than the physically available storage Thin Provisioning (TP) Pool utilizes TP Volumes Several TP Pools can be created and used in parallel
TP requires a license key
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Application 1
Application 2
Application 3 Allocated Allocated Allocated
Common TP
Storage Pool
Host Reported Capacity
Actual used
Capacity by Application
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Thin Provisioning allocates volume capacity via virtual volumes Effective use of storage capacity reduces initial investment (start small) Possible to increase available storage capacity to suite changing
business needs • There is no need to add storage capacity per volume or application utilization
Thin Provisioning Function
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
2 TB is enough for the year ahead, but we will need 10 TB five years from now.
Server
Logical capacity matches future requirement
Virtual volumes (10 TB logical volume)
Write
Write
ETERNUS DX Physical capacity only matches current requirements
Physical drive (2 TB drive pool)
ETERNUS SF Storage Cruiser
Write data
New Threshold
No need to add/change systems even if physical
drives are added
After adding physical drives to the TP Pool
New added capacity
Add drives
Threshold alert
Threshold warning
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Balancing Thin Provisioning Volume Assigns Thin Provisioning Volumes evenly across the RAID
Groups to remove hot spots by distributing the I/O access Done automatically without affecting normal operations
47 Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
RAID Group #0 RAID Group #1 RAID Group #2
Volume #1 Volume #2 Volume #0 Volume #0 Volume #0
Volume #0
Thin Provisioning Pool - Without balancing
RAID Group #0 RAID Group #1 RAID Group #2
Volume #1 Volume #0
Volume #2 Volume #0 Volume #0
Volume #0
Thin Provisioning Pool - With balancing
Operability
ETERNUS Web GUI Similar ETERNUS GUI CLI Support
Common Features ETERNUS DX S2 48 Copyright Fujitsu, Release May 2012
ETERNUS Web GUI (1) Same look-and-feel for all ETERNUS DX S2 systems Intuitive operability Easy operation by just selecting an item and operation
• An example: Create a Volume • Menu (Volume) => Select category (Volume list is displayed) => Select "Create"
49 Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Select an item to be operated
Select category Status can be confirmed (select the item to be operated)
Main display
Only the items that can be operated are
displayed
Select action
Select from the menu
Please note the screenshot may look different depending on the firmware version.
ETERNUS Web GUI (2) Continued from previous page
50 Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Enter parameters
Click the "Create" button
Easy operation by
following information
Dedicated screen for operation is displayed
Operation is completed
Please note the screenshots may look different depending on the firmware version.
Similar ETERNUS GUI Similar GUI look-and-feel for each ETERNUS DX S2 system
and ETERNUS SF v15 onwards Simple consolidated management with integrated management software
51 Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
ETERNUS SF Manager display ETERNUS DX Web GUI display
Status display Select an action Select an item Status
display Select an action Select an item
Please note the screenshots may look different depending on the firmware version.
CLI Support All DX S2 systems are able to use the same script with Entry
and Midrange models Use of scripting enables automated routine operations
• Provides ability to automate operational and setup routines Extensive command set provides similar functions as GUI Same commands for DX Entry, Midrange and Enterprise S2 models
52 Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
GUI
CLI
>xxxxxxx
CLI: Command Line Interface GUI: Graphical User Interface
ETERNUS DX
Operation terminal
Miscellaneous Email Notification Supporting SNMP, SMI-S, Syslog Access Authority Setting for Users Wake-on-LAN (WOL) Quality of Service (QoS) Redundant IP Host Affinity ETERNUS DX Advanced Copy Functions Improved Remote Copy Function
Common Features ETERNUS DX S2 Copyright Fujitsu, Release May 2012 53
Email Notification When an event occurs, email can be sent by ETERNUS DX Without additional management software
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Without built-in Email functionality
ETERNUS DX S2
Event
Error
Error
ETERNUS DX
Mail server Management software
SNMP Trap or polling
of device status
Creating E-mail after analyzing
information from device
Email created by device Mail server
Operation other than Alarm can be triggered, for example Information, Warning, Error, Enhanced log contents for example Parts type, Installation positioning information
Administrator / Engineer
Administrator / Engineer
Note: The conventional technology can also be used
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Supporting SNMP, SMI-S, Syslog ETERNUS DX supports SNMP v1, v2c and v3
• Can be used to receive traps for ETERNUS information and notifications SMI-S Version 1.4
• Possible to manage ETERNUS DX by using storage management software complying with SMI-S
Syslog daemon complying with RFC3164, RFC5424 • Event logs can be sent to an external server • Any server that can receive messages that conform to RFC 3164 (the BSD
Syslog Protocol) can be used as the Syslog server, for example • Syslog daemon in standard Unix or Linux • Microsoft Operations Manager (MOM)
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2 55
Access Authority Setting for Users Two default user accounts are available "root" with default password "root" "f.ce" with default password "<check code><serial-no. of DX>"
ETERNUS DX restricts the available administration functions per user account role to balance between what the particular user roles needs to do and is allowed to do RBAC (Role Based Access Control) Assigns roles and access authorities when creating an ETERNUS DX
user account
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Role Available functional range Monitor Status display
Administrator All settings excluding maintenance work
Storage Admin Status display, RAID group settings, Volume settings, Host connection settings, etc.
Account Admin Status display, User account settings, Authentication settings, Role settings
Security Admin Status display, Security settings, Maintenance information
Maintainer All settings including maintenance work
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Wake-on-LAN (WOL) WOL can be enabled for each LAN port of the ETERNUS DX
S2 systems with ETERNUS Web GUI or CLI A Magic Packet sent to DX LAN MAC address can be used to remotely
power on the ETERNUS DX system
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Sends a Magic Packet ( XX-YY-ZZ-AA-BB-CC)
with WoL utility tool
XX-YY-ZZ-AA-BB-CC
Activate system remotely
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Quality of Service (QoS) Host I/O performance of priority business
applications can be guaranteed by setting workload limits Allowed maximal I/O performance of lower
priority applications can be limited Can be set per Host and per Port
58 Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Server A Low priority
Server B High priority
ETERNUS DX
Without QoS
I/O performance
Server A
Server B Required performance
Required performance
Temporarily increased I/O requests
Not enough bandwidth available
With QoS
I/O performance
Server A
Server B Required performance
Required performance
I/O requests are limited
Bandwidth is secured
Redundant IP (1) Possible to set different IP addresses within the same subnet
to each CM When the role is changed between the CMs, the Master and Slave keep
their IP addresses (see next slide) Maximum of two IP addresses in two subnets can be set per CM
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
CM0 2)
MN
T
RM
T
FST CM1 2)
MN
T
RM
T
FST
Switch Switch
IP x.x.x.a IP x.x.x.b IP y.y.y.c IP y.y.y.d
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1) The ETERNUS DX Entry models do not have an FST port. 2) On DX8700 S2 these ports reside in SVC0 and SVC1.
1)
1)
Redundant IP (2) When Master CM is changed IP Address of previous Master CM is taken over by new Master CM IP address of previous Slave CM is taken over by new Slave CM
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
FST
Master Slave ETERNUS DX
CM#0
Switch
CM#1
172.168.30.10 172.168.30.20
FST
Master Slave ETERNUS DX
CM#0
Switch
CM#1
Link Down 172.168.30.10
CM#1
FST
Master Slave ETERNUS DX
CM#0
172.168.30.10
Direct Connection
Connection using switch / hub
LAN Link Down
FST
Master Slave ETERNUS DX
CM#0
Switch
CM#1
172.168.30.10 172.168.30.20
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NOTE: On DX8700 S2 the FST, RMT and MNT ports reside in SVC#0 and SVC#1.
Host Affinity Two different mapping procedures are configurable LUN Mapping = LUN is mapped per ETERNUS DX CA port
• Volumes that are mapped directly to a CA port or CA ports • Are accessible from each host that has physical access to that or those CA port(s) • A particular host cannot be prevented from access
HBA Mapping = LUN is mapped per HBA hardware address (WWPN / iqn / SASPN) • Volumes have to be grouped in the ETERNUS DX system
• Volumes are mapped to LUNs • These Volume groups are assigned to HBAs of one host or HBAs of different hosts via
CA ports • New Volumes can be added to an existing Volume Group
NOTE: One CA port can only support either LUN mapping or HBA mapping
Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2 61
Improved Remote Copy Function The ETERNUS DX90 S2, DX400 S2 and DX8700 S2 models
are able to use REC between different ETERNUS DX generations
62 Copyright Fujitsu, Release May 2012 Common Features ETERNUS DX S2
Local site
ETERNUS DX90 S2
Backup site ETERNUS DX400 S2 ETERNUS DX8700 S2
ETERNUS DX8700 S2
DR site REC connections DX8700 S2
ETERNUS DX8700 S2 ETERNUS DX400 S2 series ETERNUS DX90 S2
FC, iSCSI
ETERNUS DX400/DX8000 ETERNUS 4000/8000
FC, iSCSI 1)
ETERNUS DX90 FC
ETERNUS6000 N/A
ETERNUS3000 FC 2)
1) S2 models require an iSCSI Remote Adapter (RA) to connect with the iSCSI RA of the earlier models.
2) Remote connection is available only for data migration. Both Stack mode and Through mode can be used as a transfer mode.
The connection matrix is applicable to both local site and backup / DR site.