The coordinating address space (CAS)

The coordinating address space (CAS) is an MVS subsystem whose main function is to support the MVS/TSO ISPF end-user interface (EUI) to CICSPlex® SM. The CAS is not part of a CICSplex, but belongs to the managing topology of CICSPlex SM. (See Figure 2).

Start of changeA CAS need not be started on every MVS system where a CMAS runs to provide Single System Image (SSI) function for EUI requests directed at a CICSplex. However in order for an EUI user to set the context to a CMAS, that CMAS must be connected to an active CAS.End of change

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