I can only speak for OS/390 2.9 and 2.10 on the Z9 as being able to run, I have never tried an older version, mostly because we have not had a client with an older version move to a Z9 (at least not with my help).
I think that there are better ways to accomplish what you need though, I could easily set up a supported system (z/OS) on the Z9 in a weekend and depending on your configuration, it might be possible to share most of your hardware and cut over incrementally in a very short period of time. I have had a lot of experience getting older versions of the subsystems to run under the newer z/OS versions which would allow you to move your subsystems intact changing (mostly) just the operating system. Obviously I'm simplifying this, but depending on what your current installed subsystem configuration is, it might be quite simple and quick to get you up on the Z9 with only a minor amount of fuss. It might be worth a try to see if we could get 2.4 to run as well, but I wouldn't want to bet the farm on it. If your interested, give me a off list email and we can discuss it. Brian Westerman ---------------------------------------------------------------------- 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

