Resource Recovery Services attachment facility

The RRS feature of z/OS® coordinates commit processing of recoverable resources in a z/OS system. Db2 supports use of these services for Db2 applications that use the RRS attachment facility (RRSAF), which Db2 provides.

The implementation of z/OS Resource Recovery Services (RRS) is based on the same technology as that of CAF but offers additional capabilities. Use the RRS attachment facility to access resources such as SQL tables, DL/I databases, IBM® MQ messages, and recoverable Virtual Storage Access Method (VSAM) files within a single transaction scope. Programs that run in batch and TSO can use RRSAF. You can use RRS with stored procedures and in a WebSphere® environment.

The RRS attachment is required for stored procedures that run in a WLM-established address space.