IT20379: SNAPDIFF BACKUP CAN FAIL WITH ANS2836E. WHEN INCORRECT IN EXPORT PATH IS USED FOR VOLUME BEING BACKED UP

IBM Spectrum Protectâ„¢ Client 7.1.8 Downloads and READMEs

APAR status

• Closed as documentation error.

Error description

• Error Description:
  
  Snapdiff backup can fail with: ANS2836E. /vol/snapdiff/test is a
  partial volume or qtree
  when incorrect export path specification is used for  volume
  being backed up
  
  The message "ANS2836E  /vol/snapdiff/test is a partial volume or
  qtree"
  does not provide enough information to explain what is wrong
  with the export
  path specification and how to fix it.
  
  Here is an example that can cause the backup to fail:
  
   /vol/snapdiff/test
  
  Here is an example with correct volume name so backup can
  complete:
  
  /volume_snapdiff_test/
  
  Documentation needs to be updated to explain limitation
  regarding the export
  path used for the volume being backed up during  snapdiff
  backup.
  
  Tivoli Storage Manager Versions Affected:   71L
  
  
  Customer/L2 Diagnostics (If Applicable)
  
  When the backup fails, you may see the following in the client
  errorlog:
  
   ANS2836E Incremental backup operation using snapshot
  difference is only
   available for full volumes /vol/snapdiff/test is a partial
  volume or qtree.
  
  You will see the following in client service trace
  
  backsnap.cpp  (1644): BacHandleSnapshotPreProcess(): Found
  remote Volume<volume1>
  on NAS Filer: <YourNas.domain.name> for path  /vol/snapdiff/tes
  snapcommon.cpp (1178): scIsNasQtree(): NAS export path: <
  /volume1/snapdiff/test1> is a Qtree
  

Local fix

• here is a new testflag called SNAPDIFFCMODEVOLPREFIX that
  will allow snapdiff backup to complete. This tesflag
  will work in 7 or C filer mode.
  
  The flag is specified in the client options file
  (dsm.opt) as follows:
  .
  TESTFLAGS SNAPDIFFCMODEVOLPREFIX
  

Problem summary

• ****************************************************************
  

Problem conclusion

• In IBM Tivoli Storage Manager for UNIX and Linux ClientsInstalla
  

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:

Fix information

Applicable component levels