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Status Delivered
Workspace Storage Protect Family
Categories TSM for System Back-up and Recovery
Created by Guest
Created on Aug 23, 2011

RELATED IDEAS

Enhance SnapDiff Backups to run alongside SnapMirror

Currently, SnapDiff backups have two possible options.
–diffsnapshot=create, which is the default, means that TSM creates the snapshot and then compares that with the previously created snapshot to determine the difference for backups. This has a disadvantage in that you cannot use this approach to perform backups on a remote, DR filer because SnapMirror causes the volumes at the remote site to be in R/O mode.
-diffsnapshot=latest means that TSM uses the latest snapshot which is already available on the filer or, in the case of a DR filer, is copied across from the production filer by SnapMirror. However, this option currently does not work with SnapMirror active because, as part of it's operation, SnapMirror creates temporary snapshots. These temporary snapshots, whilst usable by the SnapDiff API to create a list of files to back up, will be deleted by SnapMirror so are unsuitable for the actual backup.

An additional requirement is to remove the restriction whereby TSM must create the first snapshot. This would then allow SnapDiff to be implemented without the need to stop SnapMirror which would compromise DR for potentially long periods.

Idea priority Urgent
  • Guest
    Reply
    |     Jun 12, 2015

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - Storage
    Product - Tivoli Storage Manager (TSM) Family

    For recording keeping, the previous attributes were:
    Brand - Tivoli
    Product family - Storage
    Product - Tivoli Storage Manager (TSM) Family

  • Guest
    Reply
    |     Apr 3, 2014

    This functionality was delivered in our 6.4 release.

  • Guest
    Reply
    |     Sep 14, 2011

    Thanks for submitting this enhancement request, we plan to address this requirement in a future release of the TSM.

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