Hi there,
I seem to remember that with the z890 in LPAR mode a 31-bit XA/ESA machine could be set up. This option was removed on later machines. IBM released several transition pieces of hardware and software for the various environments.
For VM people, z/VM 3.1 supported both a 31-bit and 64-bit CP. Guests could still be either EC, XA/ESA or 64-bit. VSE and z/OS had similar versions. The z/800 and z/890 were the transition processors.
What machine is your customer running on now? MP2003? It might be worth to look at running a z/9 with z/vm 5 and the VM/XA as a guest. Oversize the box to handle the double virtualization and translations.
I have a customer moving from a MP2003-204 to a z/9 BC A01 machine and the purchase price, z/VM charges, power, A/C, maintenance, etc. make the costs pretty reasonable.
Migrating to a z/890 might put them in the same position in a year from now.
Paul
--- In
H390-VM@..., "tsmith9999999" <tsmith9876@...> wrote:
>
> Hello all,
>
> It interesting to see the same names on this site too.
>
> Well my question, has anyone tried to run VM/XA or VM/ESA on a Z890? I have a customer in between hardware and software combinations now and looking for a tempory way out.
>
> Thanks all
>
> Terry L. Smith
> Sr. Systems Programmer
>
