IT25601: "DB2CLUSTER -CM -ENTER -MAINTENANCE" COMMAND FAILS IF RUN ON A TIEBREAKER HOST IN GDPC ENVIRONMENT

Db2 Version 11.1 Mod4 Fix Pack4 iFix001 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 4 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 6 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 5 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 7 for Linux, UNIX, and Windows

APAR status

• Closed as fixed if next.

Error description

• In a GDPC pureScale environment, the following error may be
  encountered when attempting to enter maintenance mode on the
  tiebreaker host:
  
  $ /opt/IBM/DB2/V11.1.3/bin/db2cluster -cm -enter -maintenance
  DBT8066E Unable to enter maintenance mode on host "TBhostA".
  Reason code = "3".
  A diagnostic log has been saved to
  '/tmp/ibm.db2.cluster.qyFz13s.
  

Local fix

• In order to workaround this issue, RSCT can be stopped via
  native RSCT commands, e.g. the "stoprpnode TBhostA" command can
  be used to stop RSCT on the tiebreaker host. In order to then
  exit maintenance mode, RSCT can be started back up on the host
  via the "startrpnode TBhostA" command. Note that the startrpnode
  command must be issued from another host in the cluster.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * pureScale GDPC users                                         *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to Db2 version 11.1 Mod pack 4 Fix pack 4            *
  ****************************************************************
  

Problem conclusion

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

Applicable component levels

• RB10 PSN

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