IT39838: CTGGA0605 - REPLICATION TARGET NETWORK CONNECTIVITY ISSUE CAUSING VOLUME RELATIONSHIP REBASE

APAR status

• Closed as program error.

Error description

• If a target vSnap server is temporarily unreachable when
  replication jobs run in IBM Spectrum Protect Plus, the job
  recreates the replication relationship and triggers a new base
  replication stream. The unexpected base replication results in
  the job running much longer than expected, and it causes
  increased space usage in the target vSnap pool. The expected
  behavior is that replication jobs will fail when the target
  vSnap is unreachable.
  
  The replication job log encountering the connectivity problem
  will report the following when the replication is rebased:
   SUMMARY,<timestamp>,CTGGA2399,Starting job for policy
       REPLICATION with job name <SLA_Name> (ID:<SLA_ID>). id ->
       <Job_ID>. IBM Spectrum Protect Plus version 10.1.9-2544.
   INFO,<timestamp>,CTGGA1846,Target vsnap is no longer available
       for volume <VOLUME_ID_XYZ>. Removing old relationship and
       rebasing volume
   INFO,<timestamp>,CTGGA1824,Removing relationship <VOL_ID_XYZ>
   ERROR,<timestamp>,CTGGA0605,Unable to find replication target
       for storage controller XXXX.
  
  The VIRGO log shows:
   [timestamp] INFO  Resource access exception caught:
       https://<target_vSnap_IP>:8900/api/system org.springframe
       work.web.client.ResourceAccessException: I/O error on GET
       request for "https://<target_vSnap_IP>:8900/api/system":
       No route to host (Host unreachable); nested exception is
       java.net. NoRouteToHostException:
       No route to host (Host unreachable)
    .
   [timestamp] ERROR com.catalogic.ecx.api.storage.exception.
       StorageProviderException: Storage server <target_vSnap_IP>
       has error: Could not connect to storage <target_vSnap_IP>.
       Be sure storage is reachable.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Spectrum Protect Plus level 10.1.9.                      *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See error description.                                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply the fixing level when available. This problem is       *
  * currently projected to be fixed in IBM Spectrum Protect Plus *
  * level 10.1.10. Note that this is subject to change at the    *
  * discretion of IBM.                                           *
  ****************************************************************
  

Problem conclusion

• The fix for this issue is to only remove vSnap replication
  relationships for unregistered servers.
  

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:

Modules/Macros

• Hypervis
  

Fix information

• Fixed component name

  SP PLUS

• Fixed component ID

  5737SPLUS

Applicable component levels