IBM Mainframe Discussion List <[email protected]> wrote on 12/24/2005 12:32:34 AM:
> We have several clients (more than 25) who have run (and some are still > running OS/390 2.7, 2.8 and 2.10 on z/800's, z/890's and one that's running > 2.7 on a z/990 (although only in a LPAR that gets very little use). > > There are some issues that you have to work through, mostly connected with > getting the older maintenance up to date and to get the new processor > support on to OS/390 in the first place, but even then you can bypass a lot > of things if you know what you're doing. If you wnat me to cover some of > them for you, send me an email off-lsit and I can give you information on > the sites and what we went through. I would be rather surprised to seen anything lower than OS/390 2.10 running on a z890, z990, or z9 processor. All of these machines implement a 2-level Translation Lookaside Buffer, and OS/390 2.10 was the first release to correctly support a 2-level TLB. Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY ---------------------------------------------------------------------- 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
