One other thing you may find useful:

If you boot with the kernel parameter vmhalt=LOGOFF (added to
/etc/zipl.conf), the guest will logoff after halt.

-Brad

Tom Burkholder wrote:
Thanks to all!

"XAUTOLOG" it is and an IPL xxx added to the profile.

It's already been tested and works.  I'll also look at the "SET OBSERVER" too 
from the latest email tip.

Thanks again,
Tom B.


From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Gary Detro
Sent: Thursday, August 21, 2008 3:24 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: z/VM CP commands (LOGON)?


To solve your problem you need to review the CP XAUTOLOG command and place the 
IPL xxx in the profile exec for your linux guest.

Thanks,

Detro


Senior IT Specialist
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From:

Tom Burkholder <[EMAIL PROTECTED]>

To:

LINUX-390@VM.MARIST.EDU

Date:

08/21/08 02:14 PM

Subject:

z/VM CP commands (LOGON)?




________________________________



z/VM'ers,

After a few searches and actually scanning the CP commands and utilities manual, 
hopefully I can get some help with this z/VM related question.  If I have a z/linux guest 
called "ztrash01", I can logon to z/VM as ztrash01, IPL xxx, logon to Linux and 
shutdown -h now, and if I'm still logged on as console from my 3270 terminal session, 
enter logoff.  No problem.

The "why" I want to do the following is to potentially stress test some 
applications by forcing off a z/Linux guest (crash) and then eventually trying to 
automate and re-IPL, but first I gotta be able to do some basic z/VM CP commands below.

I read the LOGON in the CP commands and Utilities reference, but I'm doing 
something wrong (other than trying to trash and stress test my guest).

I'm still playing with test systems, but from a z/VM CP perspective, for now the Linux guest 
"ztrash01" is shutdown and halted, but "ztrash01" is still logged onto z/VM.

1. If I'm logged on as "operator" to z/VM, I can issue CP command "q n" and see 
that guest ztrash01 is logged onto z/VM and DSC (disconnected).
2. Still as operator, I can issued CP command "force ztrash01 logoff immed" and 
this logs the guest, ztrash01, off of z/VM (FORCED BY OPERATOR)
3. Still as operator, a "q n" verifies that the guest is gone (i.e. logged off 
z/VM)
4.  Now, as operator, instead of going to another z/VM terminal session and logging on as 
"ztrash01", still as operator, I would like to cause the guest "ztrash01" to 
logon (and eventually IPL).

To cause the IPL of guest "ztrash01" at LOGON, I believe I can put that in the 
PROFILE EXEC (e.g. IPL xxx) at the end, but how (if at all) can I cause the guest to be 
logged on (opposite of FORCE) while being logged on to z/VM as operator?

Thanks in advance,
Tom B.



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--
Brad Hinson <[EMAIL PROTECTED]>
Sr. Support Engineer Lead, System z
Red Hat, Inc.
(919) 754-4198
www.redhat.com/z

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