Issue:
When you have a websphere cluster which uses DB2 on z/OS as its datastore and due to a machine upgrade happening the subsystem ID for this DB2 needs to be changed (say for example DB1P to DBP1.)
Issue Fix:
Change the following files,
wkplc_comp.properties
wkplc_dbtype.properties
icm.properties
on all nodes in the cluster and then change the data source for the cluster in the deployment manager.
