The way we handle this goes back a long way before the latest facilities
to set NOPASSWORD were available.
What we do is connect all users who are likely to be affected by this
(long running servers etc.) to a specific RACF group.
We then run a daily procedure in VMUTIL, that is authorised to
I will be out of the office starting 09/29/2008 and will not return until
10/07/2008.
I will respond to your message when I return.
If your request requires immediate attention, Please contact the MVS
Technical Support Hotline
at 1-866-866-4488 x12000
Hello all,
I have a new DASD address which has to be added to z/VM 5.3 which was
previously formatted with a z/OS format.
I didn't do a CPFMTXA format.
I attached the volume to system and DDR'ed a few minidisks over to the new
volume.
So, cylinder 0 of the new volume is not in CP format.
If your VM system is at 101% memory usage, and you are overcommitted by
about 14%, is it worthwhile to add
a vdisk to a linux for swap space, or better just to add main memory to the
linux?
MA (Looking for opinions, thoughts, rationalizations, whatever. :)
When you use CPFMTXA command, you can specify the from/to cylinder
for your format command. Specify cyl 0 and then properly allocate the
device as PERM.
As a general procedure, I do not attach any new device to my system
before I CPFMTXA the complete volume.
Look at HELP ICKDFS, CKD COMMANDS, CPVOL. You'll use the command CPVOL
FORMAT UNIT(cuu) VERIFY(serial) RANGE(0,0) VOLID(serial)
It will default to PERM from cyl 0 to end of volume.
CPFMTXA is just ICKDSF dummied down. Wish they had never introduced the
command.
Jim
Howard Rifkind wrote:
A disk containing no system areas need not be formatted by CPFMTXA. The
only thing really needed is the volume label. That said, yes, you can
format only cylinder 0. CPFMTXA dev volser 0 0 will do it.
Regards,
Richard Schuh
From: The IBM z/VM
Ok - this is an extremely basic question and I'm slightly embarrassed to ask
it - but here goes:
OPERATOR is not running PROP at this installation -- There was also no IPL
statement in OPERATOR directory until I started futzing around -- creating a
PROFILE EXEC to make sure OPERATOR console was
A CPFMTXA LABEL should do it for you.. Just label the volume appropriately
--
And - Issue a CPFMTXA ALLOCATE to see what the current allocation is - and
then get out of there if it's allocated as PERM (as I'd expect)..
Scott Rohling
On Mon, Sep 29, 2008 at 9:24 AM, Howard Rifkind [EMAIL
Add 'CP SET RUN ON' to the PROFILE.
Regards,
Richard Schuh
From: The IBM z/VM Operating System
[mailto:[EMAIL PROTECTED] On Behalf Of Scott Rohling
Sent: Monday, September 29, 2008 8:42 AM
To: IBMVM@LISTSERV.UARK.EDU
I haven't tried it, but I would expect that CPFMTXA LABEL or ALLOCATE
would fail if the volume or at least cyl 0 had not been formatted with
CPFMTXA. One important reason to use ICKDSF CPVOL or CPFMTXA on a
volume in a mixed, i.e. OS and VM environment is that CPFMTXA or CPVOL
will leave the
If you include SET AUTOREAD OFF at the end of your PROFILE EXEC that should take
care of it. It's a CMS command so don't precede it with CP. Take a look at HELP.
Jim
Scott Rohling wrote:
--=_Part_42470_28892394.1222702898551
Content-Type: text/plain; charset=ISO-8859-1
My SLES 10.1 zLinux servers have been notorious for not making much use
of the swap space, even when we lower the main (virtualized) in the USER
DIRECTORY. We may have something just not configured optimally
somewhere, but our luck has gone with adding main Linux memory and
subsequently having
What about the dummy VTOC that CPFMTXA (or ICKDSF's CPVOL command) places
on cylinder zero?
Without that dummy VTOC, which makes it appear to Other Systems that there
is no space left on the DASD, they can and **WILL* write on it!
From:
CP SET RUN ON is already in the PROFILE EXEC - but I'll try out AUTOREAD OFF
-- Thanks!
Scott Rohling
On Mon, Sep 29, 2008 at 10:16 AM, Jim Bohnsack [EMAIL PROTECTED] wrote:
If you include SET AUTOREAD OFF at the end of your PROFILE EXEC that should
take care of it. It's a CMS command so
Best practices is to use Vdisk for swap, and reduce linux virtual machine sizes - not to
buy more REAL z/VM memory unless you really need it. 101% memory useage means almost
nothing. It is not relevant to performance or capacity, and thus shouldn't have business
decisions or performance
Can you give me any insight into making more use of the swap; see below?
We have had systems significantly speed up after adding memory, even
though swap was not being used. I realize that swap / disk is going to
be slower, but with cache and buffers shouldn't it be at least close?
lnx057:~ #
I know I'm probably going to regret this, but, how can that be? I said VM
memory usage, right?
Not Linux
MA
On Mon, Sep 29, 2008 at 1:23 PM, Barton Robinson
[EMAIL PROTECTED] wrote:
Best practices is to use Vdisk for swap, and reduce linux virtual machine
sizes - not to buy more REAL z/VM
Does your IPL statement have parm autocr specified?
Jim Hughes
603-271-5586
Its kind of fun to do the impossible. (Walt Disney)
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Scott Rohling
Sent: Monday,
It appears there's alot of cache usage. What's running on this machine?
--
Rich Smrcina
VM Assist, Inc.
Phone: 414-491-6001
Ans Service: 360-715-2467
rich.smrcina at vmassist.com
http://www.linkedin.com/in/richsmrcina
Catch the WAVV! http://www.wavv.org
WAVV 2009 - Orlando, FL - May 15-19,
It is predominately a file server +600GIG. The OS is SUSE 10.1
(Novell).
David Dean
Information Systems
*bcbstauthorized*
-Original Message-
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Rich Smrcina
Sent: Monday, September 29, 2008 12:46 PM
To:
Dean, David (I/S) wrote:
My SLES 10.1 zLinux servers have been notorious for not making much
use of the swap space, even when we lower the main (virtualized) in
the USER DIRECTORY.
Linux uses extra memory for file cache buffers. When the kernel detects
memory is short, it just allocates
On Monday, 09/29/2008 at 12:46 EDT, Hughes, Jim [EMAIL PROTECTED]
wrote:
Does your IPL statement have parm autocr specified?
From Scott's post, yes. However, CMS users that are XAUTOLOGed should NOT
have PARM AUTOCR on the IPL statement. The reason is that XAUTOLOG will
stack an ENTER to
Yes it does --
And the answer appears to be issuing SET AUTOREAD OFF ! So a big thanks to
Jim Bohnsack for that tidbit!!
Thanks again to all who responded.. I love this mailing list :-)
Scott Rohling
On Mon, Sep 29, 2008 at 10:05 AM, Hughes, Jim [EMAIL PROTECTED]wrote:
Does your IPL
Thanks to all for some really good input.
So the tuning legend that the Linux should just touch swap is true?
But if Linux is going to eat all for file caching, would it not Always
eventually swap?
Thanks again.
Anything that is not a mystery is guesswork.
David Dean
As others have pointed out, yes you can just format cylinder zero. Soon
after I started at this site I ran across a volume that have not been
formated with CPVOL. I wrote the following Q-ALLOCM EXEC to check all th
e
DASD to find out how widespread the problem was and found 68 out of 354
Dean, David (I/S) wrote:
Thanks to all for some really good input.
So the tuning legend that the Linux should just touch swap is
true? But if Linux is going to eat all for file caching, would it not
Always eventually swap?
Swap and file caching are two sides of the same thing. In
Only if the volume label points to somewhere that used to be a VTOC that
has not been overwritten.
Unless things have changed in the last few years, the VTOC written when
formatting the disk as a CPVOL does not go far enough. If the MVS DASD
Storage Allocation Routine is interrupted while the
Hello again,
While implementing the SLES exec for the SLES10 full-service server, it
asks for a MAC address. (I thought the MAC address was automatically
assigned. Why is it asking for a static address?) We are using OSA
GB-EXP.
Please see below:
Device address for read channel
Hi Folks,
Is it possible to completely back off an RSU once it has been applied
and put into production? I basically just want to put my system
(zVM5.4) back into it's pre-RSU state and re-do the RSU in it's
entirety, can I just wipe all the various APPLY, MERGE, etc. etc. disks
so I can start
Turn off level 2.
David Dean
Information Systems
*bcbstauthorized*
-Original Message-
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Austin, Alyce (CIV)
Sent: Monday, September 29, 2008 2:07 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: SLES10 Client
On Monday, 09/29/2008 at 01:41 EDT, Jack Woehr [EMAIL PROTECTED] wrote:
Linux kernel for running on VM could be designed a little different from
Linux
kernel for PC in order to behave better with VM.
I'm not sure to what extent it actually is different.
This is not just a z/VM problem. For
I see that in z/OS 1.8 I can now specify IPMAILERNAME instead of
IPMAILERADDRESS.
Will this be included in z/VM at some point?
Thanks
Lionel B. Dyck, Consultant/Specialist
Enterprise Platform Services, Mainframe Engineering
KP-IT Enterprise Engineering
925-926-5332 (8-473-5332) | E-Mail:
A colleague here supposedly wrote something that puts a 1 track DSCB on
cylinder 0 that shows it with no free space to MVS.. but no one can find it
:-)I've been hunting around for such a thing because the backups of the
VM volumes that are supposed to take place on MVS are getting skipped...
Do you have a backup?
--
Rich Smrcina
VM Assist, Inc.
Phone: 414-491-6001
Ans Service: 360-715-2467
rich.smrcina at vmassist.com
http://www.linkedin.com/in/richsmrcina
Catch the WAVV! http://www.wavv.org
WAVV 2009 - Orlando, FL - May 15-19, 2009
Michael Coffin wrote:
Hi Folks,
Is it
While implementing the SLES exec for the SLES10 full-service server,
it
asks for a MAC address. (I thought the MAC address was automatically
assigned. Why is it asking for a static address?) We are using OSA
GB-EXP.
You should respond no to the layer 2 prompt here. Nothing in the setup
ouch. As Rich said, you likely need a good backup. The RSU is pre-applied and
pre-built so all of the SES/E disks for each component are touched with
patches, control structures, and built objects. I was thinking of advising to
remove the top level apply, and run VMFAPPLY and a VMFBLD (
An early draft of the architecture and porting guide for OpenSolaris for
Z is available from distribution.sinenomine.net. It covers the release
95 build. This is a draft, so there will be a few changes yet, but
comments and corrections are always welcome.
File is at
z/VM Memory usage, what do you think it means? If a page of a virtual machine is in
storage, but has not been referenced in 10 minutes, is that part of your percent used?
Likely you don't know the answer and the source of your information doesn't either. So if
that's the case, what information
Thanks guys.
Yeah, restore from backup was the first thing I thought of - but I'll
have to give up some work I've completed since the last backup (no big
deal, I can redo it easy enough). It just seemed like SOMEWHERE in the
giant world of SES there might be a relatively easy way of saying
well service removal is never easy or automated. If this was a bunch of COR
service it is easier to remove but never fun.
Since RSU service is pre-built going to backup is probably the cleanest way out
of it.
I don't suggest this but you could try:
for every serviced component:
1. removing
I initially said no to layer 2 and eventually is ask me again if I
want to enable layer 2
Thanks,
Alyce
Enable OSI Layer 2 support?
1) Yes
2) No
2
Please select the type of your network device.
1) OSA-2 or OSA Express
2) Hipersockets
3) Channel To Channel
If the page has not been referenced in 10 minutes, but is not paged out, I
would expect it to be included in the 101%.
Try not to focus so much on the extraneous info and address the question, if
I am using a huge amount of memory, is it more helpful to use vdisk or guest
memory?
MA
On Mon, Sep
Alan Altmark wrote:
On Monday, 09/29/2008 at 01:41 EDT, Jack Woehr [EMAIL PROTECTED] wrote:
Linux kernel for running on VM could be designed a little different from
Linux
kernel for PC in order to behave better with VM.
I'm not sure to what extent it actually is different.
Best practices is to use Vdisk for swap
Mary Anne Matyaz wrote:
If the page has not been referenced in 10 minutes, but is not paged out, I
would expect it to be included in the 101%.
Try not to focus so much on the extraneous info and address the question, if
I am using a huge amount of
Thanks for all the replies...
Aria Bamdad [EMAIL PROTECTED] 9/29/2008 11:34 AM
When you use CPFMTXA command, you can specify the from/to cylinder
for your format command. Specify cyl 0 and then properly allocate the
device as PERM.
As a general procedure, I do not attach any new device to my
CPFMTXA/ICKDSF will put a VTOC on the system that shows no space
available. I know of nothing that also shows all space allocated. Both
are needed to prevent allocation and insure that the VSE Bit can never
cause a problem.
Regards,
Richard Schuh
On Monday, 09/29/2008 at 02:35 EDT, Michael Coffin
[EMAIL PROTECTED] wrote:
Yeah, restore from backup was the first thing I thought of - but I'll
have to
give up some work I've completed since the last backup (no big deal, I
can
redo it easy enough). It just seemed like SOMEWHERE in
On Monday, 09/29/2008 at 02:19 EDT, Lionel B. Dyck
[EMAIL PROTECTED] wrote:
I see that in z/OS 1.8 I can now specify IPMAILERNAME instead of
IPMAILERADDRESS.
Will this be included in z/VM at some point?
Possible, but not likely any time soon.
As an alternative, define an :Exit. in the
On Monday, 09/29/2008 at 02:06 EDT, Schuh, Richard [EMAIL PROTECTED]
wrote:
Unless things have changed in the last few years, the VTOC written when
formatting the disk as a CPVOL does not go far enough. If the MVS DASD
Storage Allocation Routine is interrupted while the checking for free
Hello Jack,
We have corrected the link bug in the z/VM V5.4 Information Center. You
should now be able to use the URL at the bottom of each page to create a
bookmark or to use as a direct link to a specific topic in the information
center.
For example, the following will link you directly to
Hi
Over the last month or so we have had CHECK SUM ERRORS on 3 of our
z/Linux hosts. This error stops the Linux host from coming back up after
a re-boot or log off. After working with REDHAT they found that there
was 2 bit over lay of what amounts to the VTOC which points to the
UUIDs. Each
Thank you
Lionel B. Dyck, Consultant/Specialist
Enterprise Platform Services, Mainframe Engineering
KP-IT Enterprise Engineering
925-926-5332 (8-473-5332) | E-Mail: [EMAIL PROTECTED]
AIM: lbdyck | Yahoo IM: lbdyck
Kaiser Service Credo: Our cause is health. Our passion is service. We're
Couple questions -- Are the volumes attached to the Linux guests or are
they defined as minidisks? Are the volumes shared with z/OS and is there
any potential for them to be altered by z/OS?
Scott Rohling
On Mon, Sep 29, 2008 at 2:54 PM, Martin, Terry R. (CMS/CTR) (CTR)
[EMAIL PROTECTED]
Michael Forte wrote:
We have corrected the link bug in the z/VM V5.4 Information Center.
You should now be able to use the URL at the bottom of each page to
create a bookmark or to use as a direct link to a specific topic in
the information center.
Awesome, thanks.
--
Jack J. Woehr
On Monday, 09/29/2008 at 04:55 EDT, Davis, Larry
[EMAIL PROTECTED] wrote:
The current Release of TCPIP for z/VM 5.2 allows you to place a DNS name
or an IP Address on the IPMAILERADDRESS line as below or a list of IP
Addresses and hostnames with an END statement and the SMTP CONFIG file
On Sep 29, 2008, at 3:54 PM, Martin, Terry R. (CMS/CTR) (CTR) wrote:
Hi
Over the last month or so we have had CHECK SUM ERRORS on 3 of our z/
Linux hosts. This error stops the Linux host from coming back up
after a re-boot or log off. After working with REDHAT they found
that there was 2
On 9/29/2008 at 2:47 PM, in message
[EMAIL PROTECTED], Austin, Alyce
(CIV) [EMAIL PROTECTED] wrote:
I initially said no to layer 2 and eventually is ask me again if I
want to enable layer 2
Unfortunately (or perhaps by design), the installer retries the dialog if it
cannot activate the
Alan makes a good point - call IBM support if you are unsure how to
proceed. There are documented ways to back off service with VMSES/E and
they work well. This assumes you have not deviated from the standard
Install and Service of course.
Check out VMFREM. This handy utility will allow you to
Thanks for the suggestions guys (I'll have to re-read VMFREM in case I
can use it in the future). I was able to restore the system exactly the
way I wanted it by selectively restoring extents from my DDR backup
tapes, worked great. I'll do a level set backup after checking a few
things before
That last makes for a good question. I do not have any guests other than
CMS, GCS and TPF varieties, so I have no way to trace to see if it is
still a problem. The only time I encountered it was in a non-VM shop.
Fortunately, we were able to wrest the disk away from the system before
there was any
When one downloads a VMARC'ed package, the downloaded file (let's call it
FUBAR VMARC in honor of the ongoing US financial crisis) ends up with
the date and time the FUBAR VMARC file was created on your VM system. That
makes it more difficult at a later date to download the same package and
That begs the question, doesn't this qualify as a usage; not defect?
--
Rich Smrcina
VM Assist, Inc.
Phone: 414-491-6001
Ans Service: 360-715-2467
rich.smrcina at vmassist.com
http://www.linkedin.com/in/richsmrcina
Catch the WAVV! http://www.wavv.org
WAVV 2009 - Orlando, FL - May 15-19, 2009
Hello...
I have good news: after leaving out the portname, I was able to get
further with my install: However, I'm not sure what IPADDR it wants
below:
Device address for data channel
0.0.0342
Portname to use
Enable OSI Layer 2 support?
1) Yes
2) No
2
qeth: Device
Yes.
This is your (as in this virtual machine's) IP Address.
--
Rich Smrcina
VM Assist, Inc.
Phone: 414-491-6001
Ans Service: 360-715-2467
rich.smrcina at vmassist.com
http://www.linkedin.com/in/richsmrcina
Catch the WAVV! http://www.wavv.org
WAVV 2009 - Orlando, FL - May 15-19, 2009
On Monday, 09/29/2008 at 07:32 EDT, Rich Smrcina [EMAIL PROTECTED]
wrote:
That begs the question, doesn't this qualify as a usage; not defect?
Hello? Support Center? Yes, I'd like to report that there is nothing in
the Guide to Automated Installation and Service on the subject of removing
Sneaky, sneaky...
--
Rich Smrcina
VM Assist, Inc.
Phone: 414-491-6001
Ans Service: 360-715-2467
rich.smrcina at vmassist.com
http://www.linkedin.com/in/richsmrcina
Catch the WAVV! http://www.wavv.org
WAVV 2009 - Orlando, FL - May 15-19, 2009
Alan Altmark wrote:
On Monday, 09/29/2008 at
Aw shucks. Twarnt nothin.
Jim
Scott Rohling wrote:
--=_Part_44881_7503930.1222708149051
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Yes it does --
And the answer appears to be issuing SET AUTOREAD OFF ! So a big thanks to
Jim
Sure. Easy for you to say. Just not to say it in one breath. :-)
Mike Walter
Hewitt Associates
- Original Message -
From: Alan Altmark [EMAIL PROTECTED]
Sent: 09/29/2008 09:23 PM AST
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: Backing Off an RSU
On Monday, 09/29/2008 at 07:32 EDT,
Maybe the :TLR record could optionally include a checksum of the entire
file. I might not want to do that for every transaction I do to build a
VMARC file, but when I am finished and it is ready to transfer to
someplace else, I could see doing one last transaction to checksum the
file, put the
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