Local-resource recovery versus distributed-resource recovery
In a local-resource recovery environment, the recovery participants reside on the same z/OS® system. In a distributed-resource recovery environment, the recovery participants and the updated resources are scattered across multiple systems.
In a distributed-resource recovery environment, the APPC/PC (APPC/protected conversation) resource manager is used to provide the communications for the sync-point calls to remote systems.
The following figure illustrates how a distributed recovery environment operates.
