Interesting.  We reverse the order:

Devices ,
  Offline_at_IPL  0000-FFFF,
  Sensed          0000-FFFF,
  Online_at_IPL   0400-0408 ,
                  0A00-0AEF ,
                  A9A0-A9AF ,
                  AC30-AC3F ,
                  AFAF      ,
                  BC90-BCA8 ,
                  C940-C94F ,
                  CD40-CD5F



-----Original Message-----
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Berry van Sleeuwen
Sent: Wednesday, March 21, 2007 9:40 AM
To: [email protected]
Subject: Re: System Config : suggestion (corrected)


Hello Alain,

We use an input file to select what DASD addresses should be online
after 
an IPL. The file is basically a Q DASD. The file is read and attaches
the 
DASD to system, dedicated DASD is left free and DASD that is not used is

set offline. The only thing we have to do is (re)build the DASD file
when 
a volume has been added or deleted. (PIPE CP Q DASD | > DASD FILE D) It 
saves us from changing the system config every time we change the DASD 
configuration. If the files are located on shared DASD the DASD FILE can

be named something like VMLXHW1 DASD for the VMLXHW1 node.

This doesn't work when we have duplicate DASD volumes that are required 
during IPL. We have some VM's that still use the default zVM440 DASD 
volume ID's. When a default 440W01 or something like that has not been 
relabeled the 'wrong' addresses must be set offline in the system
config:

FBVM03: Devices ,            
   Online_at_IPL   0000-FFFF,
   OFFLINE_AT_IPL  2100-21DF,
   OFFLINE_AT_IPL  21EA-21FF,
   OFFLINE_AT_IPL  2200-239F,
   OFFLINE_AT_IPL  23A4-23FF,
   Sensed          0000-FFFF 

Regards, Berry.
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