Using the IMSRSC repository with MSC

For IMS systems that are capable of Multiple Systems Coupling (MSC), the IMSRSC repository can be defined among the IMS systems.

IMSRSC repository definitions and MSC
If the MSC links are within an IMSplex, all IMS systems share the same repository defined for the IMSplex. If the MSC links are between IMSplexes, and if the IMSplexes are within the same z/OS® sysplex, each IMSplex can either have its own repository or share the same repository. The repositories in these different IMSplexes can be managed by the same active Repository Server (RS) address space or by a different active RS address space.
How SIDR and SIDL values for remote trans and descriptors are stored
For the resource definitions that have different attributes among IMS systems (such as the SIDR and SIDL values for each MSC-capable system), the stored resource definitions in the repository consist of a generic section (for the common attributes) and an IMS-specific section (for the attributes that are different for each IMS system).
Maintaining MSC resources in the IMSRSC repository
Maintain MSC resource definitions in the IMSRSC repository to store the definitions in a single, centralized location for all members of an IMSplex. Maintaining MSC resource definitions in the IMSRSC repository also enables the definitions to be saved across an IMS cold start.
Creating or updating MSC resources in the repository
You can create or update MSC resources in the IMSRSC repository for the IMSplex.
Updating transactions from remote to local by using the repository
You can update a transaction or transaction descriptor from remote to local in an IMSplex by using the IMSRSC repository.
Updating transactions from local to remote by using the repository
You can update transactions and transaction descriptors from local to remote in an IMSplex by using the IMSRSC repository.

Parent topic: Administering Multiple Systems Coupling