IJ50794: SYMBOLIC LINKS MAY BE INCORRECTLY DELETED DURING THE OFFLINE MMFSCK AND MAY CAUSE UNDETECTED DATA LOSS.

APAR status

• Closed as program error.

Error description

• Symbolic links may be incorrectly deleted during the offline
  mmfsck and may cause undetected data loss
  

Local fix

Problem summary

• Symbolic links may be incorrectly deleted during the offline
  mmfsck and may cause undetected data loss
  

Problem conclusion

• This problem is fixed in 5.1.9.3
  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:
  Don't allow creation of symbolic lnks with inode indirection
  inode in file systems that don't support data in inode.
  
  Work Around:
  None.
  
  Problem trigger:
  When symbolic links are created in the
  filesystem with a current format version less than or equal to
  3.5 and also with IBM Storage Scale V5.1.9.2, they may be
  incorrectly stored in the inode, even though the filesystem
  format does not support storing the symbolic links in the inode.
  This causes offline mmfsck to delete the incorrectly stored
  symbolic links.
  
  Symptom:
  Offline mmfsck detects  non-critical corruption
  (corrupt indirection level) and may delete the file if directed
  to.mmfsck fsName -v -n
  ...
  Error in inode 18177 snap 0: has corrupt indirection level 0    
  
  Delete inode? no
  
  Platforms affected:
  ALL Operating System environments 
  
  Functional Area affected:
  General file system, creation of symbolic links.
  
  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