IJ39011: ONLINE REPLICA COMPARE COULD INCORRECTLY FLAG MISMATCH ON LAST BLOCK OF A FILE WHEN BLOCKS WERE PREALLOCATED.

APAR status

• Closed as program error.

Error description

• Online replica compare function could incorrectly flag
  mismatch on the last block of a file when the block
  was preallocated as a full block and reduced to
  fragment later.
  

Local fix

• Avoid running online replica compare.
  

Problem summary

• Online replica compare function could incorrectly flag
  mismatch on the last block of a file when the block
  was preallocated as a full block and reduced to
  fragment later.
  

Problem conclusion

• This problem is fixed in 5.1.3 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:
  Prevent incorrect replica mismatch error
  during online replica compare.
  
  Work Around:
  Avoid running online replica compare.
  
  Problem trigger:
  Run online replica compare on files with preallocated blocks.
  
  Symptom:
  Unexpected Results/Behavior
  
  Platforms affected:
  ALL Operating System environments
  
  Functional Area affected:
  All Scale Users
  
  Customer Impact:
  High Importanc
  

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