Specifying the resynchronization port numbers

Db2 requires that each member of a data sharing group have a resynchronization port number that is unique within the Parallel Sysplex®.

In the event of a failure, this unique port number allows a requester to reconnect to the correct member so that units of work that require two-phase commit can be resolved.

Use the DSNJU003 (change log inventory) utility to specify a unique resynchronization port number (RESYNC) for each member of the group.

The network administrator must also register the resynchronization port number with TCP/IP on each member's z/OS® system.