The CAHCHECK and CAMASTER address spaces are part of CA Health Checker Common Services Release 12.1 which is not included in the CA Common Services Version 12.0 package. The newer version of the CA Health Checker Common Services should be installed separately to replace the version that was delivered with CA Common Services Version 12.0. For more information, see Product Maintenance Letter RI18890. For documentation relating to CAMASTER and CAHCHECK, see Appendix A and B of the CA Common Services for z/OS Reference Guide Version 12.0.
CAMASTER is a noncancelable started task. CAMASTER provides an anchor point for permanently resident PC routines and data spaces used by various CA products and CA Common Services. The CA Health Checker address space is a good example. Storage resources are provided to CA components that are used instead of CSA and ECSA which reduces the demand on common storage for your system.
Historically, the IBM Master Scheduler address space was used for this purpose. However, the accumulation of such routines and data spaces in the IBM Master Scheduler address space is perceived as undesirable. Therefore, CA is moving toward using the CAMASTER permanent address space instead.
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