I think that when you use DDR you have to think PHYSICAL disk, since DDR does not have a concept of minidisk. That said it stands to reason that whenever you copy from one PHYSICAL disk address ie CYL 0 to a different PHYSICAL disk address ie CYL 1 you must use the reorder option. DDR copies very low level data ie H0 R0 record.
-----Original Message----- From: The IBM z/VM Operating System To: IBMVM@LISTSERV.UARK.EDU Sent: 4/20/2007 11:29 AM Subject: Re: Best procedure to migrate dedicated VSE volume to VM minidisk On Apr 20, 2007, at 9:25 AM, Tim Joyce wrote: Hello, I am testing procedures to migrate my dedicated VSE volumes to VM full volume minidisks. I have run into trouble when using DDR to copy my dedicated 3390 (mod3) pack to the virtual (3390 mod3) volume. I get : HCPDDR725D SOURCE DASD DEVICE WAS (IS) LARGER THAN OUTPUT DEVICE. I assume this is because my minidisk is defined a 3338 and the dedicated pack is 3339 .. is this correct? I figure many of you have done this is the past and may be able to suggest the best way to do this. I think it's just a warning and as long as the last cylinder doesn't contain data you will be OK. If it *does* contain data, then you have a problem... Adam