The canonical answer is no, you cannot change the CPUtype for a guest
system.
The real answer is that for many things, you can get away with ZAPping the
CPU type in the virtual machine's VM control block, provided you also zap
the "FF" that tells the guest that you're running it under VM.
Your mileage may vary! I make no warranties, explicit or implied, as to
whether this will cause catastrophic problems with your running guest.
Paul Goodwin
"Horlick,
Michael"
<michael.horlick@ To
cgi.com> [email protected]
Sent by: VM/ESA cc
and z/VM
Discussions Subject
<[EMAIL PROTECTED] CPUTYPE 2nd Level
.UARK.EDU>
11/01/2005 09:44
AM
Please respond to
VM/ESA and z/VM
Discussions
<[EMAIL PROTECTED]
.UARK.EDU>
Greetings,
I will be doing a disaster recovery test mid November. I have been informed
that the machine I will be using is a IBM-2064-1C6 with a serial number of
02-00XXXXX
Trying to simulate the test now on a 2nd level zVM system. I am presently
running on a 9672. I have changed the OPTION statement for this virtual
machine adding ‘CPUID 0XXXXX’ to its directory entry.
Will be logging off this machine and re-logging on presently.
Since I can’t change the cputype on my current system what would be the
response from the Q CPUID when I actually use this new machine ? Would it
be ‘FF0XXXXX20640000’ ?
Is there anyway I can have the 2nd level zVm system return a different
cputype when one either issues the ‘Q CPUID’ command or uses the DIAG 218
instruction.
Thanks
Mike Horlick
CGI
Montreal,Quebec,Canada
