>One major caution: be sure the volume you're doing this on is in the >Offline_at_IPL in your production SYSTEM CONFIG; you don't want this >directory "accidentally" coming online if something happens to the >production volume that contains your normal CP directory.
Sorry to disagree: CP will never use a directory found on a volume that is not CP-owned. CP doesn't even read the allocation map of volumes that are not CP-owned. So I'd change this caution: the volume of the 1-pack system should *not* be in the CP-owned list of the "normal" VM system. Otherwise: - the normal VM would use the spool space on that pack too - the DRCT area could indeed get used. The volume of the 1-pack system should be unique too. This way you can even mount it in the production system to maintain the 1-pack VM system In your production system, define a user SOS with minidisks describing the 1-pack system and yiu can us LINK and DDR to fill it up. Something like: USER SOS MDISK 123 3390 1 END VM1PCK MDISK CF1 3390 nn yy VM1PCK MDISK 190 3390 mm xx VM1PCK MDISK etc Kris, IBM Belgium, VM customer support