IOEPRMxx contains the configuration options that control the z/OS® Distributed File Service z/OS File System (zFS) environment and zFS aggregates to be attached at the start-up of zFS. The IOEPRMxx files are contained in the logical parmlib concatenation, defined on the PARMLIB parameter in LOADxx member. Alternatively, you can specify the z/OS File System (zFS) configuration options in the IOEFSPRM file, which is pointed to by the IOEZPRM DD statement in the ZFS PROC.
This topic covers only concatenation and syntax rules. For information about parameters for the IOEPRMxx parmlib member and the IOEFSPRM file, see IOEFSPRM in z/OS Distributed File Service zFS Administration.