IJ35622: INODE FREE COUNTS REPORTED BY MMDF MAY BE INCORRECT.

APAR status

• Closed as program error.

Error description

• If there are node failures during burst of file create or
  delete activity, then it is possible for the cached free
  inode counters on the file system manager to become
  out of date.
  

Local fix

• Run 'mmfsadm test imapWork <fs> inodeManager'
  or 'mmchmgr <fs> <another node>'
  

Problem summary

• If there are node failures during burst of file create or
  delete activity, then it is possible for the cached free
  inode counters on the file system manager to become
  out of date.
  

Problem conclusion

• This problem is fixed in 5.1.2  PTF 1
  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:
  The fix ensures that node failure recovery corrects
  the cached free inode count on the file system
  manager.
  Work around:
  Run 'mmfsadm test imapWork <fs> inodeManager'
  or 'mmchmgr <fs> <another node>'
  Problem trigger:
  Node failures in the middle of large
  number of file creates or deletes.
  Symptom: Error output/message
  Platforms affected: ALL Operating System environments
  Functional Area affected: All Scale Users
  Customer Impact: Critical
  

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