IC87129: REMOTE LOCATION OCCUPANCY STATISTICS MIGHT BE RESET WHEN DEFINED QUOTA LIMIT IS EXCEEDED.

APAR status

• Closed as program error.

Error description

• When using scheduled email backups and defining a too small
  quota limit on the remote location, it is possible to reach
  a condition where the occupancy statistics are reset and
  do not reflect the real occupancy anymore.
  
  This can be due to the designed behaviour difference
  between standard versioned file backups and scheduled
  email backups :
  
     Standard Remote Backup    Email Backup
     ----------------------    ------------
     Files are purged when     Files are not purged to
     the remotepool quota is   make room for more files.
     reached to make room for
     more files.
  
  Customer/L2 Diagnostics :
  
  This example shows the problem :
  
  1. Define a quota limit of 5 MB on the remote location
  2. Configure Tivoli Data Protection for Files to protect
     a file A.pst of 1 MB
  3. Scheduled mail replication to the remote location copies
     the file A.pst without problem.
  4. Define 3 new files of 1 MB : B.pst, C.pst, D.pst
  5. Again, scheduled replication copies these files and
     current remote occupancy is still ok : 4 MB < quota of 5 MB
  6. Define a new file E.pst of 1 MB and backup also another
     small file : x.txt
  8. Tivoli Data Protection for Files will not be able to purge
     an e-mail file to get 20% below the defined quota limit
     of 5 MB. The statistics will be reset and will report only
     the occupancy for file x.txt
  
  Versions Affected:
  Tivoli Continuous Data Protection for Files 3.1
  Fastback for Workstations 6.x
  
  Initial Impact: Low
  Additional Keywords: cdp fb4w FSB4WS
                       continuous data protection for files
                       fastback for workstations
  

Local fix

• 1. Define the Maximum space for backups large enough to
     contain all the intended mail file backups in addition
     to all the other files intended for backup.
     Please have a look at this technical document :
     http://www-01.ibm.com/support/docview.wss?uid=swg21259559
  2. Then to get back to normal :
     Open a command line prompt,
     change directory to the install directory,
     run the command "fpa sync execute=1",
     and wait for it to finish.
  

Problem summary

•  Remote location occupancy statistics might be r
  eset when defined quota limit is exceeded.
  

Problem conclusion

•  Fixed in version 6.3.0.2 or higher
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  IC82899

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  TIV CONT DP FOR

• Fixed component ID

  5608CDFCL

Applicable component levels

• R630 PSY

     UP