The drawback to Mike's approach is that your system name changes at your DR
site. That would cause more problems than it would solve for us.
Dennis O'Brien
"If I could not go to heaven but with a [political] party, I would not go there
at all." -- Thomas Jefferson
-----Original Message-----
From: The IBM z/VM Operating System [mailto:[email protected]] On Behalf
Of Mike Walter
Sent: Thursday, July 15, 2010 08:48
To: [email protected]
Subject: Re: [IBMVM] Devices OFFLINE at IPL
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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