IT19979: APPLICATION PROTECTION FAILS WITH FAILED TO UNFREEZE ERROR

IBM Spectrum Protect client 7.1.6.x interim fix downloads
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APAR status

• Closed as program error.

Error description

• In 810+ application protection fails with failed to unfreeze
  error due to
  1. incorrect flush mechanism in
  \common\vm\winnt\TSMVmwareDpVSS\VSS\VSSLog.cpp
  in Flush() if m_bCanFlush is  false  - we DO flush and set it to
  true and after that we don't flush. But once we call
  DisableFlush() the next flush does write data.
  
  2. new log entries and Flush() calls added in defect 125668 in
  \common\vm\winnt\TSMVmwareDpVSS\ProxyBAClient\CProxyBAClientModu
  le.cpp in CProxyBAClientModule::ActivateVSSFreeze()
  \common\vm\winnt\TSMVmwareDpVSS\ProxyBAServer\ProxyDispatcher.cp
  p in CProxyDispatcher::VSSFreeze()
  
  So as a result we do the following:
  1. Call DisableFlush() which actually enebles it
  2. Call freeze
  3. Try to write logs to disk in Flush() when everything is
  frozen. -> reach 10 sec timout and fail.
  
  Products affected:
  IBM Spectrum Protect Backup-Archive Client version 7.1 on
  Windows
  Note: The Backup-Archive Client is a prerequisite to using the
  Data Protection for VMware. In Data Protection for VMware
  environments, the Backup-Archive Client is also known as the
  data mover.
  
  This problem also affects IBM Spectrum Protect for Virtual
  Environments: Data Protection for VMware 8.1.0. If you are using
  Data Protection for VMware 8.1.0, refer to APAR IT18396.
  

Local fix

• Local Fix:
  - remove flush calls after freezing
  - fix Flush()
  - add EnableFlush()
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Spectrum Protect for Virtual Environments Data           *
  * Protection for VMware version 7.1 and 8.1.0 running on all   *
  * Microsoft Windows x64 platforms                              *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See ERROR DESCRIPTION                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * This issue is projected to be fixed in the Backup-Archive    *
  * Client version 7.1.6.5 and 7.1.8 on all Microsoft Windows x64*
  * platforms                                                    *
  * Note 1: The Backup-Archive Client is a prerequisite to using *
  * the Data Protection for VMware. In Data Protection for       *
  * VMware environments, the Backup-Archive Client is also known *
  * as the data mover.                                           *
  * Note 2: This is subject to change at the discretion of IBM.  *
  ****************************************************************
  

Problem conclusion

• Fixed call order and timing during VSS freeze.
  

Temporary fix

Comments

APAR Information

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

  IT18396

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

Fix information

• Fixed component name

  TSM CLIENT

• Fixed component ID

  5698ISMCL

Applicable component levels

• R71W PSY

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