Steve,
This really sounds like a Linux issue to me, when Linux has r/o(restricted by
VM) access to disks it thinks are r/w, you get a MUCH different error message.
That said, maybe a re-ipl would help the Linux machine, but I would check your
logical volume configurations (pvdisplay,
We are running a z10 and z/VM 5.4. It is time get some new tape drives.
The hardware we are looking at acquiring are:
3592-C06 TS1120 Tape Controller
3592-E05 IBM TS1120 Tape Drive
1) Do z/VM z/VSE support the proposed tape drives writing encrypted
data to the tapes?
2) According to
Check if you have PTF UM32790 for z/VM540. It is on the 1002 RSU.
Are you using HYPERPAV? If so, removing HYPERPAV volume use from your VM LPAR
should resolve the problem.
We had similar problem and the applying 1002 RSU service fixed it.
Example:
1. Q CU 0039 PAVMODE
If it is in any
I am out of the office until 03/07/2011.
I will respond to your message when I return. Please contact my manager
Hanif Dandia if you need assistance before my return. Or other Level2 folks
in my department.
Note: This is an automated response to your message Re: zLinux OS disk
read-only sent
We are running z/VSE 4.2 and z/VM 540 and we encrypt our 3592 tapes.
We run two EKM platforms. The primary EKM server runs under Windows and the
secondary EKM server runs on ZLINUX under z/VM.
Ray Waters
-Original Message-
From: The IBM z/VM Operating System
Hello Jim,
We are running z/VM 5.3 and z/VSE 4.1.2 with the same
configuration that you have.
The EKM is a LINUX server on the 3592. There are some hardware issues
that the IBM CE and I figured out.
But they are working well.
The command QT will show the status on the drives. The CST5
Tom --
What I read from what you posted is that the storage side must be
servicing all paths. That's a legit requirement.
There is then the question of what VM does with those four paths.
Does it perform some kind of rotation, spreading the I/O load? Or do
the other paths serve only for
If they are brand new to the platform, then the
following presentation might help:
http://www.vm.ibm.com/devpages/bitner/presentations/virtualb.pdf
Regards,
Bill
I'm relative new to z/VM. I have a couple of z/VM LPARs runing Linux guests
and have more coming.
What I'm wondering is this:
What z/VM metrics are you monitoring and what thresholds do you use as
indicators that more capacity is needed - Specifically CPU and Memory.
Thanks in advance
New
I'm new to z/VM. I have a question about page packs. What is the rule
of thumb for adding page packs. Today I have 1 LPAR with 4 page packs.
It is currently running 45% on each pack.
Regards,
Scott Shumate
Software Systems Programmer II
Branch Bank Trust
Assistant Vice President
Mainframe
Keep it under 50%. We target about 40%. There's a knee on that there curve
you don't want to stumble upon.
Spread over as many LCU's as you can. And use the full vol for page (minus cyl
0).
Marcy
-Original Message-
From: The IBM z/VM Operating System
If the packs are available, I like to have one (dedicated) for each exposure
to the subsystem. This give you the best scenario that a path will ne
availableit keeps the channel program running on all packs.
On Wed, Mar 2, 2011 at 2:25 PM, Shumate, Scott scshum...@bbandt.com wrote:
I'm new to
We are having this problem on a z/VSE that had a low-core storage
overlay. We can't seem to find a way out of it.
force ua
HCPUSO361E LOGOFF/FORCE pending for user UA
Ready(00361); T=0.01/0.01 14:36:34
ind i/o
If you want help - you're gonna have to introduce yourself...
Scott Rohling
On Mar 2, 2011 12:22pm, new zvm new2...@hotmail.com wrote:
I'm relative new to z/VM. I have a couple of z/VM LPARs runing Linux
guests and have more coming.
What I'm wondering is this:
What z/VM metrics are
Issue HALT 1B0D a few times until the user logs off.
From: The IBM z/VM Operating System [mailto:IBMVM@LISTSERV.UARK.EDU] On
Behalf Of Frank M. Ramaekers
Sent: Wednesday, March 02, 2011 3:41 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: HCPCQU361E LOGOFF/FORCE pending for user
We are
Yep, did thatit just came back with:
halt 1b0d
Halt initiated to printer 1B0D
Ready; T=0.01/0.01 14:30:43
...and stayed that way.
We finally, had someone cycle the BARR device and that did free up the
I/O and the VM completed it's LOGOFF process.
Frank
Sorry, Didn't know protocol.
Nick Warren - freelance consultant. New to z/VM - experience with AIX, HPUX,
MVS, Windows.
Date: Wed, 2 Mar 2011 20:43:35 +
From: scott.rohl...@gmail.com
Subject: Re: Capacity Monitoring question
To: IBMVM@LISTSERV.UARK.EDU
Wow... haven't had a hung user report in a while. Try pasting the
following file (between the --snip--s) into a file called HUNGUSER
HELPME
onto a CMS disk of your choice, then enter: HELP ME HUNGUSER
It won't actually unhang your userid, but it does outline historically
helpful steps to
I am out of the office until 03/03/2011.
I will respond to ASAP.
Note: This is an automated response to your message Re: VM/CMS Training
Material sent on 3/2/11 13:47:44.
This is the only notification you will receive while this person is away.
We use Performance Toolkit with APPLDATA enabled, then from option 29 in Perf
toolkit we get
Linux screens selection
S Display Description
. LINUX RMF PM system selection menu
. LXCPU Summary CPU activity display
Tom,
As Rick states, it depends on both software and hardware. From our side,
z/VM's EDEVice support is entirely multipath capable. An EDEVice created
and brought online with a single path can be modified via command to have
multiple paths. Those new paths will immediately be usable for I/O
Hi Tony, Thanks for the response.
I probably didn't ask the question(s) very well. I'm working with a customer
that has no capacity plan regarding the use of z/VM as a linux host. We're
seeing both CPU and Memory usage on the z/VM side increasing. Performance on
the linux guests is
Hi Nick,
We monitor VM on page usage and page IO, our guest on VM for Queue and
storage usage (main, xstor and swap). Also we monitor guest CPU usage
and metrics like the limit list. Linux memory is always at 100% so no
sense in monitoring over there but we do monitor swap usage. Linux CPU
gives
Thanks everyone, I have a better understanding of how it works now.
On Wed, Mar 2, 2011 at 4:28 PM, Eric R Farman far...@us.ibm.com wrote:
Tom,
As Rick states, it depends on both software and hardware. From our side,
z/VM's EDEVice support is entirely multipath capable. An EDEVice created
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