I'll paste some previous responses to this question from the listserv. TIP: You should be aware that you can search this listserve easily, too, at: http://listserv.uark.edu/scripts/wa.exe?S1=IBMVM Save it to your Browser "favorites", it can save hours of searching!
Here are previously mentioned (April 2007) steps to add a page volume (add a page DASD) to a running z/VM system: 1) Run CPFMTXA, marking cylinder zero as PERM, and CYLS 1-end as PAGE a. There have been long discussions of cyl 0 as PERM, but it's considered an inexpensive "best practice". b. You can use ICKDSF, but CPFMTXA calls ICKDSF under the covers and ensures that all the z/VM-related parms are entered properly to prevent problems later. 2) Update USER DIRECT to add volumes to USER $PAGE$ (or using an alternative convention to prevent MDISK allocation on the page volumes) 3) Update SYSTEM CONFIG file with new CP OWNED slots and volumes 4) CP DEFINE CPOWNED Slot nnn volser 5) CP ATTACH rdev to SYSTEM as volser 6) CP START DASD rdev ALL or: CP START VOLid volser ALL 7) CP QUERY ALLOC PAGE Mike Walter Hewitt Associates "Howard Rifkind" <vmes...@yahoo.com> Sent by: "The IBM z/VM Operating System" <IBMVM@LISTSERV.UARK.EDU> 08/26/2009 11:20 AM Please respond to "The IBM z/VM Operating System" <IBMVM@LISTSERV.UARK.EDU> To IBMVM@LISTSERV.UARK.EDU cc Subject Adding a Page Volume to a Running z/VM System. At the risk of sounding stupid, what are the commands to mount another page volume to a running z/VM system. Do I need to first add these volumes to the System Config fie? Thanks The information contained in this e-mail and any accompanying documents may contain information that is confidential or otherwise protected from disclosure. If you are not the intended recipient of this message, or if this message has been addressed to you in error, please immediately alert the sender by reply e-mail and then delete this message, including any attachments. Any dissemination, distribution or other use of the contents of this message by anyone other than the intended recipient is strictly prohibited. All messages sent to and from this e-mail address may be monitored as permitted by applicable law and regulations to ensure compliance with our internal policies and to protect our business. E-mails are not secure and cannot be guaranteed to be error free as they can be intercepted, amended, lost or destroyed, or contain viruses. You are deemed to have accepted these risks if you communicate with us by e-mail.