I think I've read posts here to the effect that z/VM can make your 'machine' appear pre-z. I wouldn't count on it, at least not indefinitely. Install the bimodal FMID. It's VERY simple. Then IPL with LOADxx specifying ARCHLVL 1. Forever until you're actually ready for 64-bit mode. Note, however, that bimodal was not carried beyond 1.4. You've got until 3/2007 to get up to speed in a graceful migration.
. . . JO.Skip Robinson Southern California Edison Company SHARE MVS Program Co-Manager 626-302-7535 Office 323-715-0595 Mobile [EMAIL PROTECTED] IBM Mainframe Discussion List <[email protected]> wrote on 09/23/2005 10:01:33 AM: > z/OS Bimodal Migration Accommodation offering > > http://www-03.ibm.com/servers/eserver/zseries/zos/installation/bimodal.html? > ca=zos14&me=w&met=bimodal > > If you don't have it and you IPL your z/OS R4 on a 64 bit capable processor > you will test 64 bit compatibility of your software for the first time at > DRP. There is nothing your DRP provider can do with the hardware to put it > in 31-bit only mode. > > Search the archives on "Bimodal" for discussions. > > Best Regards, > > Sam Knutson, GEICO > Performance and Availability Management > mailto:[EMAIL PROTECTED] > (office) 301.986.3574 > > "Think big, act bold, start simple, grow fast..." > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf > Of Pommier, Rex R. > Sent: Friday, September 23, 2005 12:56 PM > To: [email protected] > Subject: Question on 31 bit verss 64 bit > > Please don't beat me up too badly on this one, but here goes. > > We're running z/OS 1.4 on a 31 bit processor. We're going off to a hotsite > test and the machine they originally scheduled us on is a 64 bit machine. A > gentleman at the hotsite told me that we would need to have "31-bit > compatibility feature" installed to make this work. Is this true, and if > so, what actually is it (things like FMID, etc would be great). I guess I > had thought that one could IPL a 64 bit processor into 31 bit mode - or > maybe not under VM. > > I would read the manual but I poked around for a while and couldn't find a > manual to read. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
