I recall from years gone by that z/OS will issue a DIAGNOSE code when running under z/VM and fetch the real CPU serial number. So the handy CP SET CPUID won't fool any vendor "nim wads". Some of the vendors got bent out of shape with the notion of changing a z/OS CPUID so the DIAG instruction included a function code to always return real system info. DIAG function '218'x.
Not that I am advocating this (perish the thought) but at IPL time in the virtual machine you could TRACE DIAG 218 and store your desired values into the buffer it returns. David Kreuter -------- Original Message -------- Subject: Re: REXX mod From: Ron Wells <[email protected]> Date: Wed, June 26, 2013 4:14 pm To: [email protected] NUTS....was looking at renting time on a Machine that has VM ... slice...for DR...hoping to get around having to always get Auth codes when we do this...not an easy process on couple of vendors..nim-wads From: Dave Jones <[email protected]> To: [email protected] Date: 06/26/2013 03:12 PM Subject: Re: REXX mod Sent by: Linux on 390 Port <[email protected]> Hello, Ron. It can be used to change the serial number for that v.m. guest but not the hardware model number. DJ On 06/26/2013 03:05 PM, Ron Wells wrote: > so---not being vm person-- it can be done to change ser num and model for > that image I may run..?? > > > > > From: Mark Pace <[email protected]> > To: [email protected] > Date: 06/26/2013 02:52 PM > Subject: Re: REXX mod > Sent by: Linux on 390 Port <[email protected]> > > > > In the directory entry for the guest you can specify the CPUID. See the > CP > Planning and Administration Guide > > CPU cpuaddr BASE CPUID bbbbbb > > CPUID bbbbbb > provides the processor identification number to be stored in bits 8 > through > 31 of > the CPU ID that is returned in response to the store processor ID (STIDP) > instruction. If the guest is relocated, these bits do not change as a > result of the > relocation, even if the FORCE ARCHITECTURE or FORCE DOMAIN options > were used on the VMRELOCATE command. > The variable bbbbbb is a 6-digit hexadecimal number. (No checking is done > to > ensure that this number is unique in the virtual configuration.) For base > processors, this option overrides the CPUID operand on the OPTION > statement. For nonbase processors, it overrides the CPU ID of the base > CPU. > > > On Wed, Jun 26, 2013 at 3:41 PM, Ron Wells <[email protected]> wrote: > >> Do not know if this is place to ask.... >> Is there a way to tell VM that I am going to run a image(Linux or zos) >> under a different machine/serial/model # than what I am really on?? >> >> looking at doing it for a DR possibility where it is a PAIN to get auth >> codes.. >> >> ---------------------------------------------------------------------- >> Email Disclaimer >> This E-mail contains confidential information belonging to the >> sender, which may be legally privileged information. 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