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Checking /etc/services

On each system in the cluster, use the more command to check the file /etc/services.

The following is an example for two DB2 UDB instances: db2inst1 and db2inst2. Both instances have two partitions each. Each instance requires two ports plus one port per partition, hence four lines per instance.

  # more /etc/services

  DB2_db2inst1   60000/tcp

  DB2_db2inst1_1    60001/tcp

  DB2_db2inst1_2    60002/tcp

  DB2_db2inst1_END  60003/tcp

  DB2_db2inst2   60004/tcp

  DB2_db2inst2_1   60005/tcp

  DB2_db2inst2_2   60006/tcp

  DB2_db2inst2_END  60007/tcp

Inspect the file and verify there are no duplicate port numbers.