Change Host Name of DB2 9.7 Server on AIX


After changing the name of the host on which DB2 9.7 is running, the following error message is received when trying to start the database:
09/28/2009 02:32:50 0 0 SQL6048N A communication error occurred during START or STOP DATABASE MANAGER processing.
SQL1032N No start database manager command was issued. SQLSTATE=57019


For each database instance on the machine where the name changed, and on each federated server instance, the file $INST_HOME/sqllib/db2nodes.cfg needs to be edited, and the old host name changed to the new name for each occurrence. The format of the node lines is:
0 host.domain.tld 0


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