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CA Master

The CAMASTER address space is an early IPL, limited function, permanent system address space which provides a set of operating system level services that any CA Technologies product can use. CAMASTER provides the capability for privileged CA Technologies components to:

1. Register the non-space switch PC function routines that can be used instead of SVC routines, or to provide persistent access to component-specific function routines through the hardware assisted program-call mechanism.
2. Use persistent private storage that the CAMASTER address space provides to eliminate the need for using z/OS common storage resources such as ESQA or ECSA. This private storage is provided through CAMASTER space switch PC storage management services or explicit STORAGE OBTAIN using the CAMASTER ALET in AR ASC mode.
3. Provide a CA Technologies owned permanent system address space from which to anchor CA Technologies product objects, such as public access data spaces.

In short, CAMASTER can help CA Technologies products reduce their ECSA usage, avoid using user SVCs, and avoid using the IBM *MASTER* address space.