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Accelerate with IBM Storage: Copy

Services Manager 6.2.8 – What’s New!

Randy Blea, IBM Copy Services Manager Architect

Washington Systems Center - Storage

© Copyright IBM Corporation 2020 Accelerate with IBM Storage

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Washington Systems Center - Storage

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Session objectives

• Quick Product overview

• What’s New in 6.2.8

3

Washington Systems Center - Storage

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IBM Copy Services Manager

Installable across all major platforms:

Windows, Linux, AIX, z/OS, Linux for z Systems

And now pre-installed on the DS8000 HMC

Manages z Systems HyperSwap and

supports Power HA HyperSwap

to create highly available

solutions in Metro Mirror and

Metro Global Mirror

Environments

Practice As You Would Recover with

CSM Practice Volumes

Issue the ‘Flash’ command to

back up your remote site and

automatically restart replication

so that you can practice while

maintaining DR capabilities

Protect Your Data

Warning Prompts

User Roles

Site Awareness

Dynamic Images

Event and Threshold Alerts

* See your IBM Representative for further details.

Disaster Recovery and High Availability

One Step RecoveryProvides Automation for Advanced Copy Services

Single Point of Control Across Environment

Designed to Scale For Thousands of Relationships

RPO Monitoring and Historical Reporting

Simplifies the recovery process in multi-site replication,

protecting customer data while keeping costs down

Provides support for both distributed and mainframe data

Supports DS8880 and Spectrum storage systems

Easy to install. Easy to Setup. Easy to Manage.Simplify Your Replication

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What’s New in IBM Copy Services Manager V6.2.8

CSM Messages written to z/OS Syslog

Additional Information on IWNR2320W message

Capabilities to help identify CSM

session dependencies/intersections

SafeGuarded Copy session improvements

Allow recover on latest SafeGuarded Copy backup

Log package improvements

CSMCLI importcsv -action remove improvements

Allow export to CSV on given CSM GUI tables

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CSM Messages written to z/OS Syslog

| 6

• RFE 138173 – This feature provides a way for z/OS customers to better track and automate responses

to CSM commands

• Only IWNRxxxx messages will be logged to the Syslog in response to session commands

• The feature is not enabled by default by can be enabled by adding the following property to Server

Properties

com.ibm.csm.zconsole.logging=none (default) | all | error

• When all is specified, Copy Services Manager logs all I, W, and E messages to the syslog.

• When error is specified, Copy Services Manager logs all W and E messages to the syslog.

• Example: To log all messages: com.ibm.csm.zconsole.logging=all

• Additional filtering is available to prevent too many messages going to the syslog

com.ibm.csm.zconsole.logging.includechildren=true | false (default)

• When set to true high level and children messages will get sent to the syslog

com.ibm.csm.zconsole.logging.excludedmsgs=<messages to exclude in comma-separated list>

• This allows customers to specify certain messages NOT to log to prevent unnecessary messages from overrunning the syslog

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Additional Information on IWNR2320W message

| 7

• RFE 134640 - Additional information was requested in message IWNR2320W to

display SSIDs

• A customer has an SSID mismatch issue when establishing relationships between

DS8000 storage systems.

• The establish path failed with the following message

IWNR2320W [2019-06-15 13:48:09.762-0400] While trying to establish paths for

role pair H1-H2 between 2107.GNK11 logical subsystem 2 and 2107.HKD61 logical

subsystem 2, a hardware error occurred.

• The message indicated the LSSs but did not show the SSIDs and thus the customer

was not aware of the mismatch.

• Message will now display as follows

IWNR2320W : While trying to establish paths for role pair H1-H2 between

2107.GXZ91 logical subsystem c0 (SSID 65472) and 2107.GXZ91 logical subsystem

c2 (SSID 65474), a hardware error occurred.

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Capabilities to help identify CSM session dependencies/intersections – View Volumes Panel

| 8

• RFE 132997 – This request had multiple suggestions

for how to improve showing dependencies and

intersections with session shared resources

• The View Volumes Panel has been improved to allow

better filtering, sorting, column moving, etc, that will

persist for a given user across browser logins

• The panel has also added a new Sessions column

which can be shown or hidden, that will display a list

of the sessions that the volume is a part of

• Example usage: A customer could query on all

volumes in a storage system and then filter on a

session name to see all the volumes on that storage

system in the session.

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Capabilities to help identify CSM session dependencies/intersections – Storage Topology Overview

| 9

• RFE 132997 – This request had multiple suggestions for how to

improve showing dependencies and intersections well session shared

resources

• In CSM two new panels have been implemented to help show

Replication topology across all relationships defined on the CSM

server

• The Storage Topology Overview Panel shows the high level replication

between Sites/Storage Systems defined in CSM sessions

• The topology takes into account the current direction of the sessions

so that customers can see whether replication is flowing as planned

across one direction or both directions.

• The topology will display when there are sessions setup for cascaded

replication (MGM or 4 Site sessions)

• Each box to box topology also indicates the number of sessions using

that topology

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Capabilities to help identify CSM session dependencies/intersections – Storage Topology Details

| 10

• The second panel implemented for the request is the Topology Details

panel

• Topology Details lets you drill into the topology at a sub system level,

such as at DS8000 LSS pairing level

• You can directly navigate to the Topology Details or you can drill into

the view for a given site to site pairing from the Topology Overview

panel

• Topology details can show you a number of things based on

dependencies/intersections

• Can show which sessions might have pairs on the same DS8000 LSS pairing

which could impact each other on a freeze event

• Can show which LSSs may be sharing the same DS8000 Global Mirror

consistency group name

• Can show whether a given LSS is a target to too many source replications

which would lead to a problem failing over the relationships

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Allow recover on latest SafeGuarded Copy backup

| 11

• In previous releases of CSM the latest backup displayed a

warning message and was marked as non-recoverable until a

“new” backup was created in order to close the backup.

• With CSM 6.2.8, the latest backup will no longer be marked

with a warning nor be set as non recoverable

• When attempting to recover the latest backup on 6.2.8, CSM

will now automate the creation of a new backup, in order to

allow the recovery of the latest backup

• The warning prompt for recovering the latest backup,

however, will clearly indicate that in order to recover the

backup, CSM will create a new backup, thus consuming

additional backup space outside any scheduled backup

window. This “could” lead to older backups being rolled off the

hardware if not enough backup capacity was defined to

handle the creation of this new backup outside the automated

window

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SafeGuarded Copy session improvements

| 12

• “Expire Backup On Auto Roll” Option - In CSM 6.2.7 the internal session default was changed to automatically delete a backup

across all volumes in the event the hardware automatically rolled it on one or more volumes. In CSM 6.2.8 the default will be changed back to no

longer do the delete across all volumes, but a new option is provided on the CSM GUI on the Backup Options tab for customers who wish to

enable this feature. The option helps free up space faster, however, removes the option for recovery on any volumes that still had the backup.

• Support for Persistent Recovery – A new option is now available on the H1-R1 Options tab that tells the hardware to persist the

recovery relationship so that it will remain on the hardware even if the background copy is complete. This feature is only available on DS8000

levels that support persistence.

• CSM performance enhancements during backup – In previous releases CSM had a default wait time that could be increased via

property to allow the cache scans to complete prior to creating the backup. In CSM 6.2.8, CSM will now query the volumes to determine when the

scans are complete. In addition, when a backup is determined successful, CSM will wait to query the hardware to determine if any backups have

rolled. This should help speed up the entire backup process and prevent extended long busy cases when the scans take longer than the default

time waited by CSM.

• New SNMP/email alerts for Safeguarded Copy– Two new alerts have been created. CSM will throw an SNMP/email alert when it detects

that a backup has rolled on the hardware or when a recovery relationship prevents the defined retention period from expiring a backup. Any

user registered for Unexpected Severe events will receive the alert.

• CSM defaults to protecting any backups or recovery relationships – the server defaults to protecting both the backups

and recovery relationships when individual volumes auto roll backups or end up in a failed state. For example, if a recovery relationship exists and

the background copy is still running for a backup that is attempting to be expired manually or by retention, the expire will fail.

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Allows CSV export on given CSM GUI tables

| 13

• In 6.2.8 some of the CSM tables will support exporting the data in

the tables to a CSV file

• The visible column headers, order, sorting and filtering on the

table will be preserved by the export

• The export can help customers externally store history or track

aspects of the replication environment

• To export click the download icon in the table header

• The following tables allow export to CSV in CSM 6.2.8

Storage -> Volumes

Storage -> Topology Overview

Storage -> Topology Details

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CSMCLI importcsv –action remove improvements

| 14

• In 6.2.7 CSM added the –action remove option to the importcsv

CSMCLI command allowing customers to use a csv file when

removing copy sets from a session via the CLI.

• A normal remove copy set command however has additional

options that needed to be added to the importcsv command for

full flexibility.

• CSM 6.2.8 added the following options on CSMCLI importcsv

• -force

• This option tells the session to remove the copy sets despite any hardware

errors

• -keeponhw

• This option tells the session to keep the base relationships on the hardware so

that they can be imported later without requiring a full copy

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Log package improvements

| 15

• In 6.2.8 CSM added the following improvements to collected log packages

• Property files included- when creating a CSM log package the

properties files in the property directory will now be included in the

package allowing support to see what is set on the server

• Volume Relationship Summary file – a new volume-relationship-

summary.log file will be created when a log package is collected. Details

include the following

• Total Number volumes, Total Number volumes in sessions, Total Number volumes not in

sessions, Total Licensed Capacity (SRC RVUs replicated), Total Capacity of vols not in

sessions, Total Number of Sessions, Total Number of RC Source volumes, Total Number of RC

Target volumes, Total Number of RC Both Source and Target volumes, Total Number of PiT

Source volumes, Total Number of PiT Target volumes, Total Number of PiT Both Source and

Target volumes, Total Number of PiT off RC volumes, Total Capacity of RC Source volumes,

Total Capacity of RC Target volumes, Total Capacity of RC Both Source and Target volumes,

Total Capacity of PiT Source volumes, Total Capacity of PiT Target volumes, Total

Capacity of PiT Both Source and Target volumes, Total Capacity of PiT off RC volumes

• Add the following property to server properties and file will include specific volume

level details

• diagnostics.volrel.details=true

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Reference Material

• CSM Log gathering DCF doc (coming soon) – Useful for tailoring log collection for what support needs to see

• CSM Support Portal - http://www.ibm.com/support/knowledgecenter/SSESK4/csm_kcwelcome.html

• CSM online Support Matrix - http://www-01.ibm.com/support/docview.wss?uid=ssg1S1005402

• CSM Latest Downloads - http://www-01.ibm.com/support/docview.wss?uid=ssg1S1005482

• CSM Flashes Alerts and Bullentins - https://www-947.ibm.com/support/entry/myportal/alerts/system_storage/storage_software/storage_infrastructure_management/ibm_copy_services_manager?productContext=332956944

• Knowledge Center – http://www.ibm.com/support/knowledgecenter/SSESK4/csm_kcwelcome.html

• RFE Community -https://www.ibm.com/developerworks/rfe/execute?use_case=changeRequestLanding&BRAND_ID=352&PROD_ID=1467&x=19&y=22

• Youtube channel - https://www.youtube.com/channel/UC2KaP7qpv4Z9yJ75YioI-pA