Classification: UNCLASSIFIED Caveats: NONE Hello List,
It appears that some of the old restrictions regarding MCAT-cataloging of installation-allocated datasets that are accessed during system initialization (usually for OUTPUT) have been relaxed. I have verified that page datasets must still be defined in the MCAT but, other than that, I haven't yet found any absolute restrictions. Even couple datasets, it seems, may be in a UCAT if a volser is specified in COUPLExx. So far, I've checked SMF (MAN) datasets, BRODCAST, "couple", UADS, USS file systems (including root) and DFSMS ACDS/COMMDS. I find no text explicitly forbidding UCAT cataloging. I'm fairly certain that the CATALOG address space must be active before UCATs are accessible but I'm rather fuzzy about exactly where in the system initialization timeline this occurs (i.e. relative to the components that want to access these datasets). What other installation-allocated datasets that z/OS accesses during system initialization must be MCAT-cataloged? Thanks, Alan Classification: UNCLASSIFIED Caveats: NONE ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
