IJ33173: CHECKSUM ERROR ON NETWORK I/O REPORTED DURING RECONNECT

APAR status

• Closed as program error.

Error description

• During reconnect  in the middle of a write
  operation, the below error may be reported:
  2021-03-30_12:59:35.050-0400: [W] Encountered first
  checksum error on network I/O from
  NSD Client 10.10.10.10
  

Local fix

Problem summary

• During reconnect  in the middle of a write
  operation, the below error may be reported:
  2021-03-30_12:59:35.050-0400: [W] Encountered first
  checksum error on network I/O from
  NSD Client 10.10.10.10
  

Problem conclusion

• This problem is fixed in 5.1.1 PTF 2.
  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:
  Fix the checksum error on network I/O
  
  Work around:
  No
  
  Problem trigger:
  Network is not good which can leads
  to TCP connections reconnect
  
  Symptom:
  IO error
  
  Platforms affected:
  s390x-linux only
  
  Functional Area affected:
  All Scale Users
  
  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