IJ54197: MMAPPLYPOLICY PERF DEGRADATION IF LARGE NUMBER OF OBJECTS CHOSEN BY LIST RULE

APAR status

• Closed as program error.

Error description

• mmapplypolicy may show performance degradation if large
  number of objects are chosen by policy list rule
  

Local fix

Problem summary

• tsapolicy calls flushBuf() when each chosen record is written
  when policy list operation is performed.This may result in
  additional processing time. This problem does not occur if "-I
  prepare" or "-I test" is specified.
  

Problem conclusion

• This problem is fixed in 5.1.9.10
  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:
  (in customer terms) (Customer will see this)There will be no
  performance degradation in policy LIST operation.
  
  Work around:
  none
  
  Problem trigger:
  run policy list operation with "-I defer" or "-I yes" option or
  run policy list operation without -I option.
  
  Symptom:
  Performance Impact/Degradation
  
  Platforms affected:
  all platforms that support mmapplypolicy
  
  Functional Area affected:
  mmapplypolicy
  
  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 DME

• Fixed component ID

  5737F34AP

Applicable component levels