IT09644: ANS4308E RC=-1 MESSAGE ON MICROSOFT HYPER-V COMPRESSED BACKUP WITHOUT CLIENT-SIDE DEDUPLICATION

IBM Spectrum Protectâ„¢ Client 7.1.4 Downloads and READMEs

APAR status

• Closed as program error.

Error description

• When compression is enabled for Microsoft Hyper-V backup and
  client-side deduplication is not enabled, the process fails
  with the messages :
  
  ANS4164W Compression is currently enabled, but the virtual
  machine backup for '<guest name>' is not compressed because
  client-side deduplication is not being used.
  ANS4308E Full VM backup of 'Hyper-V' Virtual Machine '<guest
  name>' failed with RC=-1 mode=Incremental Forever -
  Incremental, target node name='<target node>', data mover node
  name='<data mover>'
  
  The backup process should issue only the warning message and
  proceed with the uncompressed backup.
  The warning message ANS4164W appears as designed and explained
  in the manual.
  
  Tivoli Storage Manager Versions Affected:
  Tivoli Storage Manager for Virtual Environments - Data
  Protection for Microsoft Hyper-V 7.1.1.x and higher on Windows
  
  Customer/L2 Diagnostics :
  
  A client trace will show :
  
  <timestamp> [005476] [5660] :
  ..\..\common\vm\vmbackcommon.cpp(3873):
  VmIsCompressionEnabled():
    ...==============>
    ...Compression specified, but won't be enabled for the
  Virtual Machine Control files backup.
    ...Compression is enabled, checking for dedup
    ...<============== rc=-1
  <timestamp> [005476] [5660] :
  ..\..\common\vm\HyperV\vmHypervBackup.cpp(3111):
  vmHypervBackup::Backup(): Compression is not allowed, failing
  this backup
  ...
  <timestamp> [005476] [5660] :
  ..\..\common\vm\HyperV\vmHypervBackup.cpp(3629):
  vmHypervBackup::Backup(): Error rc=-1 for vm <vmname>, fs
  \VMFULL-<vmname>.
  
  Initial Impact: Medium
  
  Additional Keywords: zztsm tsm4ve hyperv compression dedup
  deduplication
  

Local fix

• Enable client-side deduplication or disable compression.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Tivoli Storage Manager for Virtual Environments version 7.1  *
  * running on Microsoft Windows x64 platform.                   *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See ERROR DESCRIPTION                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * This issue is projected to be fixed in the Tivoli Storage    *
  * Manager Client on Windows x64 in level 7.1.4                 *
  * Note 1: The Tivoli Storage Manager (TSM) Client is a         *
  * prerequisite to using the Data Protection for VMware. In     *
  * Data Protection for VMware environments, the TSM Client is   *
  * also known as the data mover.                                *
  * Note 2: This is subject to change at the discretion of IBM.  *
  ****************************************************************
  

Problem conclusion

• Backup now continues without compression.
  

Temporary fix

Comments

APAR Information

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

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

Modules/Macros

• dsm      dsmagent
  

Fix information

• Fixed component name

  TSM CLIENT

• Fixed component ID

  5698ISMCL

Applicable component levels

• R71W PSY

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