IJ46536: AFM RECOVERY FAILS WITH ERROR 22

APAR status

• Closed as program error.

Error description

• When initial sync is triggered for a GPFS fileset (resync in
  progress) which is converted to AFM DR, none of the files/dirs
  have pcache remote or pcache parent EAs on the inode. If the
  initial sync is interrupted (and workload causes some
  remove/rename kind of operations on the local directories), then
   there are dirty directories at primary for which
  dirtyDirDirents policy scan is run to list all dirty dir
  entries. But for files which don't have state, the policy scan
  gives 5 fields as compared to 8 expected and results in recovery
   failing with error 22 (E_INVAL).
  

Local fix

• Set afmSkipResyncRecovery to yes on the fileset and trigger
  recovery.
  

Problem summary

• When initial sync is triggered for a GPFS fileset (resync in
  progress) which is converted to AFM DR, none of the files/dirs
  have pcache remote or pcache parent EAs on the inode. If the
  initial sync is interrupted (and workload causes some
  remove/rename kind of operations on the local directories), then
   there are dirty directories at primary for which
  dirtyDirDirents policy scan is run to list all dirty dir
  entries. But for files which don't have state, the policy scan
  gives 5 fields as compared to 8 expected and results in recovery
   failing with error 22 (E_INVAL).
  

Problem conclusion

• This problem is fixed in 5.1.2.11
  To see all Spectrum Scale APARs and their respective
  Fix solutions refer to page:
  https://public.dhe.ibm.com/storage/spectrumscale/spectrum_scale_
  apars.html
  
  Benefits of the solution:
  AFM Recovery shall not fail with error 22.
  
  Work around:
  Set afmSkipResyncRecovery to yes on the fileset and trigger
  recovery.
  
  Problem trigger:
  Running AFM recovery on an AFM DR Fileset who's initial sync has
  never completed.
  
  Symptom:
  Unexpected Results
  
  Platforms affected:
  All Linux OS Environments (Serving as AFM Gateway nodes)
  
  Functional Area affected:
  AFM
  
  Customer Impact:
  High Importance
  

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

• Fixed component name

  SPEC SCALE STD

• Fixed component ID

  5737F33AP

Applicable component levels