IC83594: REPLICATE NODE PROCESS MIGHT FAIL WHEN STORING DEDUPLICATED DATA TO A DEDUPLICATED TARGET STORAGE POOL.

APAR status

• Closed as program error.

Error description

• Error Description:
  
  A Tivoli Storage Manager REPLICATE NODE process might fail
  when storing deduplicated data from a source server to
  a deduplicated target storage pool.
  This can occur if there is at least one invalid base chunk
  that exists in the target storage pool.
  The failure occurs because the invalid base chunk is deemed
  valid during the lookup phase such
  that the process will try to link to it.
  The linkage is not allowed which results in an invalid
  operation and the process will fail as a result.
  
  NOTE:
  This can also affect operations such as export/import
  or client-side deduplication since they both use the same
  linkage engine when storing deduplicated
  data to the target server.
  
  Versions Affected:
  Tivoli Storage Manager 6.3 on all Supported Platforms.
  
  ACTLOG from the Source Server for Node Replication:
  ANR1815W Check target server for storage problems
  during  replication of node <nodename>.
  (SESSION: <Session #>,    PROCESS:<Process #)
  ANR0987I Process <#> for Replicate Node running in the
  BACKGROUND processed <#>
  items with a completion state of FAILURE
  
  
  Customer/L2 Diagnostics:
  Collect a trace on the target server.
  The trace flags are dependent on operation that is failing:
  
  Node Replication, enable and collect following traces:
  SESSION/DEDUP/DEDUP1/REPL
  
  Client-side deduplication, enable and collect following traces:
  SESSION/DEDUP/DEDUP1
  
  Import Node/Server, enable and collect following traces:
  XI/XIDETAIL/DEDUP/DEDUP1
  
  In all cases, the following entry will be found in trace logs
  if this issue is being encountered:
  
  13:01:23.272 [23494][bfdedup.c][3326][BfLocateSHAInPool]:
  Not linking to base row 86850644 because size is zero.
  
  Initial Impact: Medium
  
  Additional Keywords:
  replicate node Error -1 base row chunk ANR1815W dedup
  deduplication chunk fingerprint corrupted orphaned
  

Local fix

• Remove the invalid base chunk from the target server.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All Tivoli Storage Manager server users.     *
  ****************************************************************
  * PROBLEM DESCRIPTION: See ERROR DESCRIPTION.                  *
  ****************************************************************
  * RECOMMENDATION: Apply fixing level when available. This      *
  *                 problem is currently projected to be fixed   *
  *                 in levels 6.2.5, 6.3.2 and 6.3.3. Note       *
  *                 that this is                                 *
  *                 subject to change at the discretion of IBM.  *
  ****************************************************************
  *
  

Problem conclusion

• This problem was fixed.
  Affected platforms:  AIX, HP-UX, Linux, Solaris, Windows.
  

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

  TSM SERVER

• Fixed component ID

  5698ISMSV

Applicable component levels

• R62A PSY

     UP

• R62H PSY

     UP

• R62L PSY

     UP

• R62S PSY

     UP

• R62W PSY

     UP

• R63A PSY

     UP

• R63H PSY

     UP

• R63L PSY

     UP

• R63S PSY

     UP

• R63W PSY

     UP