IJ46148: WRONGLY QUOTA DATA FROM RESTRIPE DATA BLOCKS WHEN REPLICATION CHANGES

APAR status

• Closed as program error.

Error description

• During filesystem restripe process, for example, mmrestripefs
  -R, a file replication setting may be changed if the file is
  ill-replicated, and quota is not handling correctly after the
  file data blocks are replicated or un-replicated as needed to
  match the new replication settings. As result, some quota
  accounting data become unreliable over time.
  

Local fix

• Run mmcheckquota to correct quota values.
  

Problem summary

• During filesystem restripe process, for example, mmrestripefs
  -R, a file replication setting may be changed if the file is
  ill-replicated, and quota is not handling correctly after the
  file data blocks are replicated or un-replicated as needed to
  match the new replication settings. As result, some quota
  accounting data become unreliable over time.
  

Problem conclusion

• This problem is fixed in 5.1.7.1
  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:
  Fix quota accounting from file restripe process in data
  replicated file systems.
  
  Work Around:
  Run mmcheckquota to correct quota values.
  
  Problem trigger:
  Quota is not handling correctly from data blocks replicated or
  un-replicated logic.
  
  Symptom:
  Wrongly quota accounting data.
  
  Platforms affected:
  ALL Operating System environments
  
  Functional Area affected:
  Quotas
  
  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:

  IJ46395

Fix information

• Fixed component name

  SPEC SCALE STD

• Fixed component ID

  5737F33AP

Applicable component levels