As I stated, this is not the normal S-DISK 100/107 thing as both Q DISK Q and Q V 193 show the EXACT SAME SIZE. I can image a few strange cinereous where a RECOMP was done on some ancient history disk and the first 50 cylinders were DDRed or something like that with no intervening CMS FORMAT.
There is a casino down the street from where I am staying. If I were a betting man I would bet that this was done accidently or someone was testing something for some unknown reason and forgot about it. I see no valid reason for this to have been done. -----Original Message----- From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Huegel, Thomas Sent: Thursday, February 19, 2009 3:31 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: How Can I Tell if this Disk for Formatted with the RECOMP Option? Exactly .. but now is that mdisk recomped? There is nothing set aside for an IPL area. What would be the point to do it intentionally? Can anyone see a reason to do it? -----Original Message----- From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu]on Behalf Of Mike Harding Sent: Thursday, February 19, 2009 4:26 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: How Can I Tell if this Disk for Formatted with the RECOMP Option? If I were going to create such a creature, I'd format a 100-cyl minidisk, recomp it to 50 cyls, then ddr it to a 50-cyl mdisk, or change the directory allocation of the existing one to 50 cyls. Really easy. The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU> wrote on 02/19/2009 02:15:42 PM: > But q v dasd shows 50 cyl .. it has nothing to do with recomp.. > I am messing around and can't get the same results.. > I define a 50 cyl mdisk and 'format 100 q 50 (recomp' it does the > format and recomp to 50 cyl which equals no recomp.. > > You got my curiosity going that is all. >
