On 1/30/09 3:03 PM, "[email protected]" <[email protected]> wrote:
> > Since I am a new to the VM world and have not had a lot of hands on > experience, this may come across as a dumb question. > > How would one go about re-labeling VM system volumes if you are using > DIRMAINT? > > 1. Thou shalt not give physical cylinder 0 to a guest, unless thou knowest exactly how clueful the guest is. > You only do it the relabling trick when the physical volume is put on line to the system, and you do it with ICKDSF (or CPFMTXA, which is a wrapper around DSF). It¹s also only critically important for disks with CP-owned areas on them (for which it¹s a good idea not to use for user minidisks if you can afford the disk space), but it¹s still Best Practice to not have any duplicate physical volsers. What I do is segregate the disks with CP areas into one volume group in DIRMAINT, and put the user data in a different group (USERVOL). For each new system, you generate a new EXTENT CONTROL that contains the new CP owned volumes with a new volume group name (I use a volume group that is the same name as the system ID returned by CMS IDENTIFY), copy it into place, and DIRM RLDEXTN. I list the user volumes in the USERVOL group so my user management utilities work the same on all systems, and when I need to do something to a special system, I know to use the volume group name from the bottom right corner of the screen...8-)
