Writing Resource Rules › Masking in Resource Rules › Building the Resident Resource Type List

Building the Resident Resource Type List

To use masking, you must first build a resident resource type list. CA ACF2 for z/VM builds this list when you initialize the ACF2 service machine or use an ACFSERVE command. Building these resident lists is important because CA ACF2 for z/VM uses them to determine which resource rule to use during validation.

The RESTYPE VMO record specifies the three‑character type code of the resources you want CA ACF2 for z/VM to automatically build a resident list for. For example, to build a list for the standard CA ACF2 for z/VM controlled resources, the RESTYPE VMO record is:

RESTYPE TYPES=(ALG,DIA,GRP,IUC,VMC)

We recommend that you use the RESTYPE VMO record because it ensures that CA ACF2 for z/VM always builds the lists.