If I wanted to capture the results of a CP FOR command in a rexx exec
(preferably a pipe), is there some sample rexx somewhere for that?
Marcy Cortes
This message may contain confidential and/or privileged information. If
you are not the addressee or authorized to receive this for the
In REXX land, it must be a PIPE: the response is sent asynchronously. CP
provides the *ASYNCMD IUCV service to grab the response of FOR.
Here's something I quickly constructed:
address command
parse upper arg CPcmd
if CPcmd='' then CPcmd='Q USERID'
MaxWait=5 /* Wait at most 5 seconds */
'PIPE
So, I was hoping to ask all the people on the list if they would be
willing to share their strategy regarding applying maintenance to VM!
It was obviously not a topic that could be covered at SHARE since
everyone has their own way of doing it...
As I indicated at SHARE, for those of you who
Anne,
That's exactly the approach that I use. Another variation would be to
try it on a z/VM in another LPAR, but second level works just as well.
Perhaps the key to PUT2PROD is to make sure that you are connected to
your OSA ICC or 2074 (if you have either of those). Also, the timing to
It was obviously not a topic that could be covered at SHARE since everyone
has their own
way of doing it...
As I indicated at SHARE, for those of you who attended the wrap-up session,
my inclination
is to:
- create a second level VM,
- apply maintenance,
-
This is what I do for applying maintenance or release upgrades.
I have a second level virtual machine for my current system maintenance. When I
get a new release (hopely 5.3 will arrive in a while), I create a brand new
virtual machine for that system. In that system I apply the maintenance in as
Marcy,
On the systems tool disk (eg. 193) there should be a REXX exec called
TRYFOR SAMPEXEC.
Best Regards,
Bill Moy
The IBM z/VM Operating System IBMVM@LISTSERV.UARK.EDU wrote on 08/22/2007
02:12:01 AM:
If I wanted to capture the results of a CP FOR command in a rexx exec
(preferably a
Because changing operational procedures is such a headache, it takes
about 6 weeks, we do not change the IPL volume. Add to that that we have
some pretty heavy vendor modifications to the CP, we simply cannot use
the SERVICE/PUT2PROD approach, We do a vanilla 2nd level install and
test. When we
I add a volume to a Linux instance does anyone know from the Linux side
to make the instance rescan for DASD without rebooting? It should be
possible, but I can't find a command to do so.
Thanks
Frank Sikich
With slight variations we essentially do the same as Richard Schuh.
Because, recently, we had more than one current z/VM 5.3 build system we
define 5 Mod-3 disks with our own label and define minidisks (1-END) on
each of these for our 2nd level build customisation system. One other
good
Thank you to those who responded..
My experiences with maintenance have not been good. Even though I had
put maintenance on second level VM 5.1, I wasn't sure how to get all
components updated on first level. Gave up on that and have since
installed VM 5.3 second level. Hopefully, will
On Wed, Aug 22, 2007 at 12:47 PM, in message
[EMAIL PROTECTED],
Sikich, Frank J. [EMAIL PROTECTED] wrote:
I add a volume to a Linux instance does anyone know from the Linux side
to make the instance rescan for DASD without rebooting? It should be
possible, but I can't find a command to do so.
When you issue VMFSETUP ppfname compname, you can see what it accesses as
build or testbuild disks. These minidisks are what you need to copy from
the test system to production.
I do have a SERVICED EXEC that will FILELIST all files flagged by VMSES as
being changed since a certain date
We are running Redhat
Red Hat Enterprise Linux AS release 4 (Nahant Update 3)
Kernel 2.6.9-34.EL on an s390x
Frank
-Original Message-
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Mark Post
Sent: Wednesday, August 22, 2007 1:17 PM
To: IBMVM@LISTSERV.UARK.EDU
On Wed, Aug 22, 2007 at 1:42 PM, in message
[EMAIL PROTECTED],
Sikich, Frank J. [EMAIL PROTECTED] wrote:
We are running Redhat
Red Hat Enterprise Linux AS release 4 (Nahant Update 3)
Kernel 2.6.9-34.EL on an s390x
Sorry to hear that. :) But, it's a 2.6 system, so the chccwdev -e command
Did you get a CP WRITE LINK to the disk either by SEND CP or vmcp?
-Original Message-
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Mark Post
Sent: Wednesday, August 22, 2007 2:17 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: Adding a mod 9 to zLinux
On Wed,
This brings to mind a question I have had: how do y'all (as we way here)
go about creating a second-level VM?
Jon
snip
1) create second level vm
2) apply maintenance
3) test
4) wait for maintenance window
5) backup system
6) apply maintenance
7) test
snip
I allocate the necessary new volumes with the volume labels specified by IBM. I
can have 510RES and 530RES on different volumes, owned by different virtual
machines and can apply maintenance to one or the other or both. The user
directory is fairly simple class G user with full volume minidisks
USER VMTEST xx 64M 64MABG
Eek! 1st level class A privs for a test id? That'll last as long as it
takes for you to type CP SHUTDOWN to the wrong level of CP...8-)
BG or BCEG should be more than sufficient, and there are very good
arguments to make test ids like this class G only and do
My 2nd level system is similar to Tom's. The names are different, but
the idea is the same. Our second level sysres becomes an alternate IPL
volume that can be used if our real system's IPL volume should somehow
get trashed.
Regards,
Richard Schuh
-Original Message-
From: The IBM
If all the volumes for the second level volumes are real volumes, then the
second level system can be used for lots of recovery processes when it gets
IPLed first level. Especially copying all of MVS's DASD from an old storage
subsystem to a new one. I insert a pool of userids for such mass DASD
I usually wind up writing my own REXX for things like this, sometimes it's
only a quick dirty EXEC to get the job done, but inevitably it gets
saved and enhanced and used again. Lots of cloning from other EXECs takes
place when preparing a new one, for common things like deciphering input
That's what I do - class G only for the 2nd level VM guest and do
privileged stuff from another userid.
Brian Nielsen
On Wed, 22 Aug 2007 16:12:40 -0400, David Boyes [EMAIL PROTECTED]
wrote:
USER VMTEST xx 64M 64MABG
Eek! 1st level class A privs for a test id? That'll last as long
Yep, I've shot my self in the foot with CLASS A sufficiently enough in the
'80s, that I don't have feet left.
Since that time, I've trained myself that when ever I'm doing a bad command,
to verify, twice, where I am and what I'm doing. That's why class a is OK for
me.
Little things like I
On Wednesday, 08/22/2007 at 04:15 EDT, David Boyes [EMAIL PROTECTED]
wrote:
USER VMTEST xx 64M 64MABG
Eek! 1st level class A privs for a test id? That'll last as long as it
takes for you to type CP SHUTDOWN to the wrong level of CP...8-)
BG or BCEG should be more than
One more from the Class G-only school of hard knocks.
Brian Nielsen wrote:
That's what I do - class G only for the 2nd level VM guest and do
privileged stuff from another userid.
Brian Nielsen
On Wed, 22 Aug 2007 16:12:40 -0400, David Boyes [EMAIL PROTECTED]
wrote:
USER VMTEST
Thanks for the tips, folks. It's good to see some solid examples of how
to insulate the host from the guest. I hope to get started on the 5.3
upgrade next week, if I can beat down the z/OS RSU apply this week.
Busy times.
Thanks,
Jon
Gee, a CP FOR command! I remember having a CP FOR command as a local mod
back in the 1980s on VM/SP! It's only taken IBM over 20 years to finally
add it to VM! Maybe Romney convinced to do it since he wrote the origina
l
CP FOR command while he was at the University of Waterloo! :-)
--
On Aug 22, 2007, at 3:55 PM, Alan Altmark wrote:
Eeek! x 2 A non-adminstrator virtual machine with anything other than
class G (or less)?!? Someone PLEASE bring me my pills!!
The installation guide recommends B actually
And even on my class A administrator machine, I have the following
Over the course of 30 years of VM systems programming, I and every VM
sysprog with whom I have worked, have shut down a production system
once. There is probably a SHUTDOWN EXEC on almost every VM system in
the world.
One thing that I don't understand is why in the world, the SHUTDOWN
Just back from vacation and SHARE - congratulations to all the new knights and
dames of VM -
from Sir David the Elaborator
From: The IBM z/VM Operating System on behalf of Carol Everitt
Sent: Mon 8/20/2007 6:19 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re:
On Wednesday, 08/22/2007 at 06:14 EDT, Adam Thornton
[EMAIL PROTECTED] wrote:
On Aug 22, 2007, at 3:55 PM, Alan Altmark wrote:
Eeek! x 2 A non-adminstrator virtual machine with anything other than
class G (or less)?!? Someone PLEASE bring me my pills!!
The installation guide recommends
We have SHUTDOWN command in a privilege class of its own and only one ops
userid has that class. That user has a SHUTDOWN EXEC on its A disk. Not to
prevent the shutdown but to actually do it. It first checks that it's being
run from that particular user and then asks a are-you-shure-type
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