All local data in a VTAM® node that needs to persist through a VTAM failure is replicated in the generic resource structure. If other VTAMs are present, they provide the necessary cleanup, and generic resources on the failing node can be restarted on another VTAM node. Affinities that should persist through a VTAM failure include LU 6.1 sessions, LU 6.2 sessions with SYNCPT synchronization support, multinode persistent sessions, and affinities claimed by the application through SETLOGON AFFIN=APPL, OPNDST/OPNSEC LUAFFIN, or APPCCMD LUAFFIN. If a failing VTAM has no local persistent data, a peer VTAM performing cleanup can delete the failed VTAM connection.

Also, the generic resource structure remains allocated until all connections to it are deleted. Because there are no VTAMs to perform cleanup for the last VTAM to disconnect, you do need to delete the last connection to the generic resource structure to deallocate the structure.