IJ46805: FORCE PREFETCH ON SW FILESET FAILS WITH NO SUCH DIR

APAR status

• Closed as program error.

Error description

• On SW mode AFM fileset - if a new directory is created at home
  and directory prefetch with this new directory is run with
  --force option, then the SW cache should be able to cache all
  data in this new dir. But since mmafmctl validates locally for
  this new directory (and since SW cannot fetch this new dir from
  home) - prefetch of new directory with --force results in no
  such dir error.
  

Local fix

• Perform mmafmlocal rstat ${dir} - before performing the --force
  directory prefetch on SW fileset.
  

Problem summary

• On SW mode AFM fileset - if a new directory is created at home
  and directory prefetch with this new directory is run with
  --force option, then the SW cache should be able to cache all
  data in this new dir. But since mmafmctl validates locally for
  this new directory (and since SW cannot fetch this new dir from
  home) - prefetch of new directory with --force results in no
  such dir error.
  

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:
  Ability to prefetch directory to cache on SW mode AFM fileset
  using force prefetch option.
  
  Work around:
  Perform mmafmlocal rstat ${dir} - before performing the --force
  directory prefetch on SW fileset.
  
  Problem trigger:
  Performing prefetch on a new directory created at home on an SW
  mode AFM fileset at the cache.
  
  Symptom:
  Unexpected Behavior
  
  Platforms affected:
  All Linux and AIX OS environments.
  
  Functional Area affected:
  AFM
  
  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