Mark Perry wrote:
Dear Rob,
getting back to my original post which is being "snipped" mercilessly ;-)
"z/OS is a proprietary OS from IBM designed and engineered
specifically for the IBM System z series of Mainframe computers.
z/OS performs at its best in a non virtualized environment, and that
is how a production z/OS should be installed and run.
For testing purposes it is possible to run complete Sysplexes under
z/VM, but performance will suffer. "
on a z9, it's going to be virtualized ANYWAY since I believe you can't
run a z9 in basic mode.
Before z/VM 5.3, I would have somewhat disagreed with you.. However,
starting with z/VM 5.3 which (IIRC) removed preferred/V=R/V=F guests
support, I'd say you are probably more than correct.
--Ivan
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