SAPR, and other *official* IBM statement don't tell you true about technical possibilities.
Look at z/900 and z/800 machines. For z/800 the oldest supported "MVS" system was OS/390 2.9, not because earlier versions were unable to run - simply because V2R9 was the oldest *supported* version of the OS. You can easily find, that older releases of OS/390 were supported on z/900 and techically those machines were almost identical.
BTW: The oldest *technically* feasible version of system for z/990 was OS/390
V2R10. It was also officially supported.
Since there are no significant differences between z/990 and z9 it is likely
that V2R10 will run on z9.
--
Radoslaw Skorupka
Lodz, Poland
Pommier, Rex R. wrote:
Speaking of the SAPR, here is the relevant information out of ours:
4.1.1 Minimum Operating System Requirements
The 2096 as well as Separate LPAR management of PUs requires at a
minimum:
* z/OS V1.5, V1.6, or V1.7 with PTFs.
* z/OS V1.4 with z/OS V1.4 z990 Compatibility Support feature (no longer
orderable) or z/OS V1.4 z990 Exploitation Support feature with PTFs.
* z/VM V4.4, V5.1, or V5.2 with PTFs.
* z/VSE V3.1.
* VSE/ESA V2.7 with PTFs.
* TPF 4.1 and z/TPF 1.1
* Linux on System z9 - the currently available distributions, SUSE SLES
9, Red
Hat RHEL 4.
One additional tidbit I just saw in the SAPR is that the z9BC will ONLY
run in LPAR mode, not basic.
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