IT08772: INCREMENTAL BACKUP INCORRECTLY DETECTS 'SECURITY CRC' CHANGES WHEN BACKING UP A MICROSOFT CSVFS VOLUME

IBM Spectrum Protectâ„¢ Client 7.1.4 Downloads and READMEs

APAR status

• Closed as program error.

Error description

• An incremental backup performed on a CSVFS volume can show some
  files backed up when they should not be.
  A client 'service' trace will show that the "File Security CRC"
  attribute changed since last backup but might not be true.
  This problem happens because the buffer used to track CRC data
  is filled with random data and thus the Tivoli Storage Manager
  backup/archive client believes there is in fact a change in the
  'File Security CRC' attribute.
  
  Tivoli Storage Manager Versions Affected:  6.3  , 6.4 , 7.1 on
  Windows platform using CSVFS volumes
  
  
  Initial Impact: Medium
  
  Additional Keywords: TSM GetFileSecurityInfo
  GetKernelObjectSecurity  GetKernelObjectSecurity Cluster shared
  volume
  

Local fix

• Use the following option in dsm.opt file:
    testflag secinfosize:1
  
  This option may force an initial FULL incremental backup run
  but the next run should be a true incremental backup.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * TSM B/A Client version 6.3, 6.4 and 7.1 running on Windows   *
  * Server 2012 and Windows Server 2012 R2.                      *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See ERROR DESCRIPTION                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fixing level when available. This problem is currently *
  * projected to be fixed in level 7.1.4.                        *
  * Note that until these levels are available, this information *
  * is subject to change at the discretion of IBM.               *
  ****************************************************************
  

Problem conclusion

• TSM client doesn't support backup and archive of the objects on
  Cluster Shared Volume File System (CSVFS). The client code has
  been modified so backup,  archive, backup image operation of
  objects on CSVFS will fail. Despite the fact that CSVFS is not
  supported, user can restore/retrieve data that were backed
  up/archived by previous version of the client.
  
   Note that this restriction doesn't concern Hyper-V virtual
  machines that locate on the CSVFS.
  

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      DSMC     DSMCSVC  DSMAGENT
  

Fix information

• Fixed component name

  TSM CLIENT

• Fixed component ID

  5698ISMCL

Applicable component levels

• R71W PSY

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