IJ53044: LOWDISKSPACE CALLBACKS NOT OCCURRING IN 5.2.1

APAR status

• Closed as program error.

Error description

• In Scale 5.2.1 the lowDiskSpace callback is not being triggered
  when disk space usage has reached the high occupancy threshold
  that is specified in the current policy rules, breaking the
  usage of thresholds to migrate data between pools applications.
  

Local fix

Problem summary

• In Scale 5.2.1 the lowDiskSpace callback is not being triggered
  when disk space usage has reached the high occupancy threshold
  that is specified in the current policy rules, breaking the
  usage of thresholds to migrate data between pools applications.
  

Problem conclusion

• Benefits of the solution:
  Fix threshold based automatic migration in Scale version 5.2.1.0
  and 5.2.1.1.
  
  Work Around:
  None
  
  Problem trigger:
  Unrelated code fix was added to 5.2.1.0 that affects the free
  space recovery processing but mistakenly disabled the
  lowDiskSpace threshold check. There is not workaround for this
  problem.
  
  Symptom:
  Potential symptom descriptions: migration via callback does not
  work mmapplypolicy command for no_disk_space_warn doesn't run
  automatically
  
  Platforms affected:
  ALL Operating System environments
  
  Functional Area affected:
  Block allocation manager code.
  
  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