Yes!  Use the "Record Qualifiers" capability of the SYSTEM CONFIG file. 

For example:

System_ID 2094 %%1234 PRODVM    /* Production system at home */
System_ID 2094 %%5678 RECOVERY  /* Planned-for D.R. system   */
System_ID 2097 %%9876 DISASTER  /* Even worse!               */

PRODVM: , 
  Devices , 
    ONline_at_IPL  0000-0FFF ,
    Sensed         0000-0FFF

RECOVERY: , 
  Devices , 
    ONline_at_IPL  1000-1FFF , 
    Sensed         1000-1FFF 

DISASTER: ,
  Devices ,
    ONline_at_IPL  0000-FFFF ,   /* Something very wrong, get 'em all */
    Sensed         0000-FFFF 

You can include multiple record qualifiers for each SYSTEM CONFIG 
statement, too!  E.g.

PRODVM: RECOVERY: ,
  Operator_Consoles , 
    0700 ,                                   /* location here       */ ,
    0701 ,                                   /* location here       */ ,
    0009 ,                                   /* 2nd level test sys  */ ,
    SYSTEM_3270    ,                  /* HMC Integrated 3270  (SYSG)*/ ,
    SYSTEM_CONSOLE                    /* HMC Linemode console (SYSC)*/

Mike Walter
Hewitt Associates
The opinions expressed herein are mine alone, not my employer's.



"clifford jackson" <[email protected]> 

Sent by: "The IBM z/VM Operating System" <[email protected]>
07/15/2010 10:24 AM
Please respond to
"The IBM z/VM Operating System" <[email protected]>



To
[email protected]
cc

Subject
Re: Devices OFFLINE at IPL






I have a production site and a DR site, the production site is being 
mirrored to the DR site same volume labels but different address. In my 
system config file I am using the Systems_Identifier with the CPU type, 
CPUID and the SystemID, this tell me if I am on the production system or 
the DR system, is there a way to add logic to the system config file to 
control which DASD I want online and which I vary offline at IPL time, 
without customizing the IOCP..

> Date: Wed, 14 Jul 2010 10:26:02 -0500
> From: [email protected]
> Subject: Re: Devices OFFLINE at IPL
> To: [email protected]
> 
> That's one way, as long as the device numbers are never, ever used in 
> this VM system. If they are, on the next IPL it will cause a little 
> problem.
> 
> Another possibility is to have an exec go through the DASD device list 
> and vary off the devices based on whether the volume 'belongs' to the VM 

> system. 'Ownership' is based on an identifier in the VOLID, eg: VM1RES, 
> VM2WK1, etc.
> 
> On 07/14/2010 10:11 AM, Billy Bingham wrote:
> >
> >
> > Would the following be the proper way to specify devices, in the 
> > SYSTEM CONFIG file, that I don't want to come online at an IPL:
> >
> >
> > Devices ,
> > Online_at_IPL 0000-FFFF,
> > Sensed 0000-FFFF,
> > Offline_at_IPL 0500-050F
> >
> >
> >
> > Thanks,
> >
> > Billy
> 
> 
> -- 
> Rich Smrcina
> Phone: 414-491-6001
> http://www.linkedin.com/in/richsmrcina
> 
> Catch the WAVV! http://www.wavv.org
> WAVV 2011 - April 15-19, 2011 Colorado Springs, CO

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