Unless your Xstore is large enough to hold all of your paged-out pages,
you'll always have *some* paging to DASD: the migration of old pages from
Xstore to DASD page space. From time to time, those pages will be touched
by their owners and paged back in. Would more (or less) Xstore improve the
ratio and, we hope, performance? (Choose one:)
* YMMV
* "It depends" (R)
* Your thumb is a different size than mine.
* What do you mean by "performance"?
Marty
-----Original Message-----
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Rich Smrcina
Sent: Tuesday, May 23, 2006 2:30 PM
To: [email protected]
Subject: Re: z/VM 5.2 on z800 with 8G of memory
Since your paging to DASD at that rate, I'd be inclined to say no (more
knowledgable answers may prevail, though). More xstor (10/6, 8/8) may
increase your xstor rate, but will it reduce your DASD rate? (I don't
expect
you to answer, that's more of a Marty question).
On Tuesday 23 May 2006 1:22 pm, Marcy Cortes wrote:
> How about a system that is paging with 16G currently divided 12/4 and is
> z/VM 5.2. Would it be happier on say 14/2 split? It depends huh...
> Whenever I look it seems to be paging at 500 per sec to xstor and
> 100-500 to DASD.
>
>
> Marcy Cortes
--
Rich Smrcina
VM Assist, Inc.
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