IJ53324: INVALID DIRECTORY ENTRY LENGTH LEAD TO FILE SYSTEM PANIC AND LOG RECOVERY FAILURE ON FILE SYSTEM MANAGER NODE

APAR status

• Closed as program error.

Error description

• In extremely rare case, directory entry with wrong length could
  be wrongly created leading to file system panic client node and
  log recovery failure on file system manager node. This could
  eventually lead to file system been unmounted everywhere.
  

Local fix

Problem summary

• In extremely rare case, directory entry with wrong length could
  be wrongly created leading to file system panic client node and
  log recovery failure on file system manager node. This could
  eventually lead to file system been unmounted everywhere.
  

Problem conclusion

• This problem is fixed in 5.2.2.1
  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:
  Avoid log recovery failure on file system manager node due to
  invalid directory entry length and file system going offline.
  
  Work Around:
  None
  
  Problem trigger:
  Creating new directory entry via file/link create.
  
  Symptom:
  Cluster/File System Outage
  
  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