-----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Rankin, Bob Sent: Monday, October 01, 2007 12:57 PM To: [email protected] Subject: OS/390 V2R4 on Z9
Our production environment is running OS390 V2R4 (9708 PUT). My management wants to purchase a Z9 to replace our aging Multiprise 2003-125 and move our existing OS to run on the Z9. While we know that OS390 V2R4 has not been certified to run on the Z9, my management thinks it possible that it might work anyway. Personally I don't think this is feasible but IBM has done stranger things in the past. Can anyone out there provide more specific information regarding this topic. While I know that there are significant instruction set differences, perhaps V2R4 may not encounter them, I don't know. Has anyone done this? Does anyone know what will happen if we attempt to do this? <SNIP> Based on my experience with OS/390 V2R9, you will get a PI-LOOP. That is, it will go to a "check stop state" during the IPL itself. I'm trying to remember the release that I once tried to IPL on a z890 (It wasn't a z800 because that's where we were going to migrate from). During the SAPR meeting, you should have seen the look on a few people's faces when IBM's people said that only 2.10 and up would run. Well, I was told to give it a try and the Production system (OS/390 2.9) died before I could get my finger off the enter key from doing the load. Regards, Steve Thompson ---------------------------------------------------------------------- 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
