CICS and IMS applications with Db2 data sharing
You can specify the group attachment name when running CICS® and IMS applications for data sharing.
CICS and IMS applications must be aware of the particular member to which they are attached so they can resolve indoubt units of recovery in the event of a failure. IMS Version 7 or later allows IMS-dependent regions to use the Db2 group attachment name to direct jobs to a data sharing group. CICS Transaction Server Version 2.2 or later allows you to use the CICS RESYNCMEMBER=YES option to handle indoubt units of work.