>From Bit's note, we have no problem. The 14 or 15 dataspaces of just under 2G 
>each will be R/O, so there never is a need to page them out. Since they page 
>in directly from SFS, they already occupy sufficient page space to accommodate 
>them. The 50% rule can then apply to the few users who are on the system, and 
>we have ample paging space for that.

Regards,
Richard Schuh

 -----Original Message-----
From:   The IBM z/VM Operating System [mailto:[EMAIL PROTECTED]  On Behalf Of 
Rob van der Heij
Sent:   Monday, July 10, 2006 3:38 PM
To:     [email protected]
Subject:        Re: Paging Space Question

On 7/10/06, Schuh, Richard <[EMAIL PROTECTED]> wrote:

> Any virtual machine would not work at most shops; any but the ones in an 
> exempt list might be OK.

But we're telling folks to stay well under 25-50% utilization. Must be
strange things happening that will suddenly make you fill up paging
space as well as spooling? If you don't notice your paging usage
doubled twice, will you notice when CP starts to force users at
random?

Somehow I thought the computation used to be
  paging space  =   block paging factor *  ( total virtual storage   +
 real memory  )
but I cannot find the last component in the book anymore...

Rob
-- 
Rob van der Heij
Velocity Software, Inc
http://velocitysoftware.com/

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