IJ47001: MMHEALTH REPORTED ILL_UNBALANCED_FS AFTER ADDING A DESCONLY DISK

APAR status

• Closed as program error.

Error description

• Adding any disk into a file system, the ill_unbalanced flag
  would be set to indicate that the file system can be further
  rebalanced. With this ill_unbalanced flag, the mmhealth will see
   it and downgrade the file system until an mmrestripefs command
  -b option is done.
  

Local fix

Problem summary

• Adding any disk into a file system, the ill_unbalanced flag
  would be set to indicate that the file system can be further
  rebalanced. With this ill_unbalanced flag, the mmhealth will see
   it and downgrade the file system until an mmrestripefs command
  -b option is done.
  

Problem conclusion

• This problem is fixed in 5.1.2.12 
  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 setting the ill_unbalanced flag when adding a descOnly
  disk, so the mmhealth will no longer flag that a mmrestripefs -b
  operation is needed.
  
  Work Around:
  None
  
  Problem trigger:
  Adding descOnly disk to a Scale file system.
  
  Symptom:
  mmhealth report ill_unbalanced_fs state.
  
  Platforms affected:
  All Operating Systems
  
  Functional Area affected:
  All Scale Users
  
  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