On Wednesday, 03/24/2010 at 04:31 EDT, David Boyes <[email protected]> 
wrote:
> On 3/24/10 3:40 PM, "Alan Altmark" <[email protected]> wrote:
> 
> > When giving guests access to real cyl 0, I suggest:
> > 1. If using a full-pack mindisk, use the DEVNO version instead of 
volser.
> > That way it doesn't matter if the guest changes the label.
> 
> Doesn't that also bind you to specific device addresses?

Yes, and that's the point; the guest is tied to a specific spinning 
entity.  It's a Good Thing.  If you want to change the association, change 
it.  If the guest changes the volser, then MDISK won't be created the next 
time the user logs on.

You know the old virtualization saying, "Never depend on the kindness of 
guests."

Alan Altmark
z/VM Development
IBM Endicott

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