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OS/390 and VSE File Rules

For OS/390 and VSE file accesses using the CMS OS/390, VSE, or VSAM file services, the complete data set name passes to CA ACF2 for VM for validation. The DSN is described below.

dsnqual1.dsnqual2.dsnqual3...
dsnqual1

Specifies the first segment of a DSN. This is also called the high‑level index of the DSN. The high‑level index is the key to the rule.

dsanqualn

Specifies a segment of a DSN.

CA ACF2 for VM constructs DSNs as follows. The access level is dependent on how the file was opened or the type of I/O read or write occurring:

file PAYROLL.MASTER.DATA
Rule key PAYROLL rule entry DSN is MASTER.DATA
CMS file PROFILE EXEC on MAINT 0191
Rule key MAINT, pseudo DSN V0191.PROFILE.EXEC