Thompson, Steve wrote:
If you mean natively, then given that OS/390 2.9 goes into a PI loop on a z/8x0 (not z/800) which could be put into 31bit mode (ARCHLEVEL=1?), I seriously doubt that it will be able to load the IPL text IF the z9(BC) does not natively support 390 Architecture (can be set to ARCHLEVEL=1 as opposed to only z/Architecture -- ARCHLEVEL=2).
OS/390 V2R10 was the first operating system release to support the 2-level TLB implemented on z990/z890 and higher processors. It's no surprise that OS/390 V2R9 has problems on these machines. But, that doesn't prove OS/390 V2R10 won't work.
I agree z/VM will hide most of the incompatibilities. -- Edward E Jaffe Phoenix Software International, Inc 5200 W Century Blvd, Suite 800 Los Angeles, CA 90045 310-338-0400 x318 [EMAIL PROTECTED] http://www.phoenixsoftware.com/ ---------------------------------------------------------------------- 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
