IJ45553: DEADLOCK DURING RESTRIPE WHEN A NSD SERVER DIED SUDDENLY

APAR status

• Closed as program error.

Error description

• 'waiting for stripe group takeover' and
  'waitForPendingCopyBlockRPCs: nn RPCs pending'.
  
  These long waiters indicate a deadlock that prevents the file
  system from coming up.
  

Local fix

• Bring all NSD servers up
  

Problem summary

• 'waiting for stripe group takeover' and
  'waitForPendingCopyBlockRPCs: nn RPCs pending'.
  
  These long waiters indicate a deadlock that prevents the file
  system from coming up
  

Problem conclusion

• This problem is fixed in 5.1.2.10
  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:
  Avoid deadlock
  
  Work Around:
  Bring all NSD servers up
  
  Problem trigger:
  Sudden death of a NSD server preventing access to some disks
  
  Symptom:
  Deadlock
  
  Platforms affected:
  All
  
  Functional Area affected:
  All Scale Users
  
  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