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IC98136: INCONSISTENT BACKUP VM STATISTICS

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APAR status

  • Closed as program error.

Error description

  • The final BACKUP VM might be inconsistent.
    
    The root cause are incorrect counting of specific VM cases :
    
    1. template VM guests counted as failed when the client option
       'Vmenabletemplatebackups'=no (this is the default)
    2. Orphaned VM guests
       (An orphan virtual machine is one that exists in the vCenter
        Server database but is no longer present on the ESX host. A
        virtual machine also shows as orphaned if it exists on a
        different ESX host than the ESX host expected by vCenter
        Server.)
    3. VM guests specified in the client option 'domain.full'
       but that do not exist in the VMware environment
    
    the following stats will be incorrect :
    
    Total number of objects inspected
    Total number of objects backed up
    Total number of objects failed
    
    the following stats will be correct :
    
    Total number of virtual machines backed up successfully
    Total number of virtual machines failed
    Total number of virtual machines processed
    
    Here is an example of what can be seen :
    
    Total number of objects inspected:  10  <-- this should be 14
    Total number of objects backed up:        3
    Total number of objects updated:          0
    Total number of objects rebound:          0
    Total number of objects deleted:          0
    Total number of objects expired:          0
    Total number of objects failed:          11
    Total number of subfile objects:          0
    Total number of bytes inspected:      75.01 GB
    Total number of bytes transferred:    48.33 GB
    Data transfer time:                1,655.60 sec
    Network data transfer rate:       30,588.18 KB/sec
    Aggregate data transfer rate:     35,247.48 KB/sec
    Objects compressed by:                    0%
    Total data reduction ratio:           35.62%
    Subfile objects reduced by:               0%
    Elapsed processing time:           00:23:56
    
    Backup VM command complete
    Total number of virtual machines backed up successfully: 3
      virtual machine x32 backed up to nodename SNACKBAR
      virtual machine rh6-64 backed up to nodename SNACKBAR
      virtual machine linux-64proxy backed up to nodename SNACKBAR
    Total number of virtual machines failed: 11
      virtual machine winxp-32(template)  <-- *
      virtual machine win7-64(template)   <-- *
      virtual machine x64                 <-- **
      virtual machine winxp-64(template)  <-- *
      virtual machine win7-32(template)   <-- *
      virtual machine winxp-64            <-- ***
      virtual machine winxp-32            <-- ***
      virtual machine win7-32             <-- ***
      virtual machine win7-64             <-- ***
      virtual machine win7-32proxy        <-- ***
      virtual machine win7-64proxy        <-- ***
    Total number of virtual machines processed: 14
    
    *   Template backup are not supported.
    **  Orphaned
    *** In the domain.full list but VM does not exist in the
    inventory
    
    Tivoli Storage Manager Versions Affected:
    Tivoli Storage Manager client 6.4 and later on Windows and Linux
    
    Initial Impact: Medium
    
    Additional Keywords: tsm zz64 backup vm vmware statistice
    objects count
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: The following backup-archive client          *
    *                 versions are affected on all supported       *
    *                 Windows and Linux (data mover) platforms:    *
    *                                                              *
    *                 - 6.4.0, 6.4.1                               *
    *                 - 7.1.0                                      *
    ****************************************************************
    * PROBLEM DESCRIPTION: Error Description:                      *
    *                      The final BACKUP VM statistics might be *
    *                                                              *
    *                      inconsistent.                           *
    *                                                              *
    *                      The root cause are incorrect counting   *
    *                      of specific VM cases :                  *
    *                                                              *
    *                       1. template VM guests counted as       *
    *                          failed when the client option       *
    *                          'Vmenabletemplatebackups'=no (this  *
    *                          is the default)                     *
    *                       2. Orphaned VM guests                  *
    *                       3. VM guests specified in the client   *
    *                          option 'domain.full'                *
    *                          but that do not exist in the VMware *
    *                                                              *
    *                          environment                         *
    *                                                              *
    *                      The following stats will be incorrect:  *
    *                                                              *
    *                       Total number of objects inspected      *
    *                       Total number of objects backed up      *
    *                       Total number of objects failed         *
    *                                                              *
    *                      The following stats will be correct:    *
    *                                                              *
    *                       Total number of virtual machines       *
    *                         backed up successfully               *
    *                       Total number of virtual machines       *
    *                         failed                               *
    *                       Total number of virtual machines       *
    *                         processed                            *
    ****************************************************************
    * RECOMMENDATION: Apply fixing level when available. This      *
    *                 problem is currently projected to be fixed   *
    *                 in levels 6.4.2, 7.1.1. Note that            *
    *                 until the fixing levels are available, this  *
    *                 information is subject to change at the      *
    *                 discretion of IBM.                           *
    ****************************************************************
    This problem was introduced in 6.4.0 when support for backing
    up vm templates was added.  When this support was added the
    aggregate statistics were not updated to count the inspection
    of template backups.
    

Problem conclusion

  • The backup-archive client, when performing the role of data
    mover:
    
    1. For template VM:
    
    If the VMENABLETEMPLATEBACKUPS is not set in the options file,
    in a command option or in a client options set, TSM will
    continue to count the VM as failed.  Additionally, the data
    mover has been fixed to count it as  inspected.
    
    If the option is set to NO in the options file, in a command
    option or in a client options set, TSM will not report on any
    template VMs that are part of the operation.  In this case the
    template VMs will be skipped and will not be reflected in the
    aggregate statistics or the VM specific statistics.
    
    If the option is set to YES in the options file, in a command
    option or in a client options set, TSM will count template VMs
    in the inspected and success/failed counts in the aggregate
    statistics and VM specific statistics (this is the existing
    behavior).
    
    2. Orphaned VMs:  will be counted as inspected and failed in
    the aggregate statistics and VM specific statistics.
    
    3. VMs which do not exist but are listed in DOMAIN.VMFULL
    will be counted as inspected and failed in the agggregate
    statistics and VM specific statistics.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC98136

  • Reported component name

    TSM FOR VE DP V

  • Reported component ID

    5725TVEVM

  • Reported release

    64W

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-12-05

  • Closed date

    2014-03-04

  • Last modified date

    2014-03-04

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

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

Modules/Macros

  • DSM      DSMAGENT DSMC
    

Fix information

  • Fixed component name

    TSM CLIENT

  • Fixed component ID

    5698ISMCL

Applicable component levels

  • R64L PSY

       UP

  • R64W PSY

       UP

  • R71L PSY

       UP

  • R71W PSY

       UP

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGSG7","label":"Tivoli Storage Manager"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"64W","Line of Business":{"code":"LOB26","label":"Storage"}}]

Document Information

Modified date:
07 January 2022