On Wednesday, 10/20/2010 at 12:52 EDT, "Schuh, Richard" <rsc...@visa.com> 
wrote:
> Not adequate. What happens if one of the devices at the lower address 
fails to 
> respond to the IPL roll call? That is a case of having only 1 device, 
the wrong 
> one, with the volser.

Mantra: Only volumes that you WANT online at IPL should be ALLOWED to come 
online at IPL.

Use OFFLINE/ONLINE_AT_IPL in SYSTEM CONFIG.  Have multiple CONFIG files to 
let you bring various sets of volumes online (incl. one with all devs 
online).  Use the IMBED statement creatively.

Alan Altmark

z/VM and Linux on System z Consultant
IBM System Lab Services and Training 
ibm.com/systems/services/labservices 
office: 607.429.3323
alan_altm...@us.ibm.com
IBM Endicott

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