David,
Have you been able to detect if the "periods of time when VSEs do not
respond at all" occur at the same intervals, or the same time of day each
time? If so, would those time periods happen match your "MONITOR SAMPLE
INTERVAL"? (To see, enter: CP Query MONitor)
How's your paging load during those periods?
Mike Walter
Aon Corporation
The opinions expressed herein are mine alone, not my employer's.
"Wakser, David" <david.wak...@infocrossing.com>
Sent by: "The IBM z/VM Operating System" <IBMVM@LISTSERV.UARK.EDU>
12/21/2010 08:53 AM
Please respond to
"The IBM z/VM Operating System" <IBMVM@LISTSERV.UARK.EDU>
To
IBMVM@LISTSERV.UARK.EDU
cc
Subject
Strange response time problems (also posted on VSE-L)
All:
We are running 2 2.3 VSE systems under z/VM 5.4 on a Z800 CPU. We
are experiencing periods of time when VSEs do not respond at all (e.g.
cannot get in via FAQS from CMS, etc.), even though nothing is running in
the VSE system and the z/VM system is not very busy. At other times, we
have excellent response times, though conditions on either the guests or
the z/VM host didn?t seem to change.
We do not have any z/VM monitors (except Explore, which is not set
up properly), and we have even tried QUICKDSP, without success.
Is anyone aware of any PTFs that address this strange behavior? We
believe it started when the system was upgraded to z/VM 5.4.
David Wakser
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