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IT05780: DATA PROTECTION FOR HYPER-V REPACKAGING NEEDED TO INCLUDE DATA MOVER FIX FOR IT05734

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Incremental forever backups of Microsoft Hyper-V virtual
    machines might be corrupted. The problem is due to a logic error
    in the Tivoli Storage Manager backup-archive client (data mover)
    code that identifies changed sectors. No error messages are
    logged during affected backup operations. However the affected
    backup data is incomplete and thus corrupted. Restore operations
    for the corrupted backup data are also reported as successful.
    No error messages are logged.
    
    The problem is not detectable until the restored data is
    accessed, either from a fully restored system or from a snapshot
    mounted by the Recovery Agent. Possible symptoms include:
    
    * One or more files might not contain the expected content
    * Operating system messages indicate file system corruption
    * Other erratic operating system or application behavior
    
    Portions of the corrupted Hyper-V backups might be recoverable.
    For example, it might be possible to use the Recovery Agent to
    recover certain needed files provided that those files were not
    affected by the incorrect backup data. It is not possible to
    determine in advance whether a given file in a Hyper-V virtual
    machine backup is affected.
    
    Note: The external symptoms are similar to those of APAR
    IT04831. However this APAR (IT05734) has a different root cause.
    
    Affected product versions: Tivoli Storage Manager for Virtual
    Environments: Data Protection for Microsoft Hyper-V 7.1.1 when
    using Tivoli Storage Manager Backup-Archive Client version
    7.1.1.0 or 7.1.1.1 as the data mover.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Tivoli Storage Manager for Virtual Environments: Data        *
    * Protection for Microsoft Hyper-V version 7.1.1.0 when used   *
    * with Tivoli Storage Manager Backup-Archive Client (data      *
    * mover) version 7.1.1.0 or 7.1.1.1.                           *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See ERROR DESCRIPTION                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * IBM instructs customers not to run incremental forever       *
    * backups of Microsoft Hyper-V virtual machines with the TSM   *
    * 7.1.1.0 or 7.1.1.1 data movers. Instead, use 7.1.1.2 or      *
    * higher.                                                      *
    ****************************************************************
    

Problem conclusion

  • The 7.1.1 Tivoli Storage Manager for Virtual Environments: Data
    Protection for Microsoft Hyper-V package has been updated at the
    7.1.1.2 level to include the fixing 7.1.1.2 data mover level
    needed for APAR IT05734
    (http://www.ibm.com/support/docview.wss?uid=swg1IT05734).
    Please see this flash:
    http://www.ibm.com/support/docview.wss?uid=swg21687942.
    IBM instructs customers not to run incremental forever backups
    of Microsoft Hyper-V virtual machines with the TSM 7.1.1.0 or
    7.1.1.1 data movers. Instead, use 7.1.1.2 or higher.
    
    Note: The 7.1.1.2 version of the data mover is only available in
    the 7.1.1.2 Data Protection for Microsoft Hyper-V package. It is
    not available as a stand-alone Tivoli Storage Manager
    Backup-Archive client download. However, because maintenance is
    cumulative, new versions (higher than 7.1.1.2) of the data mover
    that are made available for stand-alone download will also
    include the fixes for the problems described in the above flash.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT05780

  • Reported component name

    TSM VE DP MS HY

  • Reported component ID

    5725TVEHV

  • Reported release

    71W

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2014-11-25

  • Closed date

    2014-12-18

  • Last modified date

    2015-11-06

  • APAR is sysrouted FROM one or more of the following:

    IT05734

  • APAR is sysrouted TO one or more of the following:

Modules/Macros

  • DSMAGENT
    

Fix information

  • Fixed component name

    TSM VE DP MS HY

  • Fixed component ID

    5725TVEHV

Applicable component levels

  • R71W PSY

       UP

[{"Line of Business":{"code":"LOB26","label":"Storage"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SS8TDQ","label":"Tivoli Storage Manager for Virtual Environments"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"ALL SUPPORTED VERSIONS"}]

Document Information

Modified date:
24 September 2021