We don't have Flash, so I have no experience there, but you have history 
available. Maybe online in Mainview for some period, if Mainview has been 
configured so. Otherwise in the RMF records (produced by CMF).

Kees.

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of Peter Hunkeler
Sent: 23 October, 2014 16:30
To: [email protected]
Subject: AW: Re: What address space is using AUX slots?

> Start it, select 'Z', select '1', enter 'JSTOR' and you will see the ASM Slot 
> usage under the column Avg Slots, next to it are Avg Vio and Avg NVio. 

Thanks! Found it. I was starting with PGDSTAT. 

The JSTOR view doesn't tell which AUX slots are Flash and which are page DS 
slots. It's the sum of both. 
To my surprise, I can't see any job using VIO AUX slots. My previous assumption 
was wrong, it seems.

What are reasons for SRM/AUX to page out to DASD instead of Flash, when Flash 
usage is low (below 10%)? I guess, none,are there?

So, my current assumption is that we have had some peak on storage usage some 
time back which caused massive page out to Flash which also caused migration 
from Flash to AUX. Does this sound reasonable?

--Peter Hunkeler









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