That assumption is correct, even if you use the ALL parameter. That causes the signal to be sent to all guests that have registered to receive it, but not to those who haven't registered. The actual shutdown is via the SHUTDOWN command which is separate from the SIGNAL command.
The command, itself, does not shut the guests down, it tells them to do their own orderly shutdown. That is presumably why they registered to receive the signal. You could test on a single guest without any problems for the others or for the system. Regards, Richard Schuh ________________________________ From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Robert J McCarthy Sent: Wednesday, June 03, 2009 11:05 AM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Clean Linux Guest Shutdown Richard and Mark, Am I right in assuming that CP SIGNAL will only shutdown the guests and not vm, particularily if I use the table ? I could safely test this routine on one guest without impacting other guests. Thank you, Bob ________________________________ From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Schuh, Richard Sent: Wednesday, June 03, 2009 2:00 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Clean Linux Guest Shutdown Why not CP SIGNAL SHUTDOWN ALL instead of the table. Regards, Richard Schuh ________________________________ From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Mark Pace Sent: Wednesday, June 03, 2009 10:55 AM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Clean Linux Guest Shutdown I have an exec I run that runs through a table and sends the command to each linux. 'CP SIGNAL SHUTDOWN ' linux ' WITHIN 60' On Wed, Jun 3, 2009 at 1:49 PM, Adam Thornton <athorn...@sinenomine.net<mailto:athorn...@sinenomine.net>> wrote: On Jun 3, 2009, at 12:43 PM, Robert J McCarthy wrote: I am trying to develop a shutdown procedure to cleanly shutdown my linux guests, prior to shutting down vm. Reading the documentation in the virtualization cookbook for SLES10 and the vm CP COMMANDS manual; I have setup the following : 1. In each linux guest's /etc/inittab; I have changed the shutdown -r to shutdown -h 2. In my autolog1 exec I have placed the following command: CP SET SIGNAL SHUTDOWN 1200 ( To allow the guests 20 minutes to respond) Note: I have also entered the command manually When I issue the shutdown, vm shuts down before most if not all linux guests have responded or completed shutdown; always within a minute or two. As a result I end up with file corruption in some linux guests after vm is re-IPLed and the guests are brought back up. Is there a better way to accomplish a clean linux shutdown. Thank you, Bob Our SYSVINIT drop-in-replacement for a list-of-machines-in-autolog would do the trick. It may be overkill. Adam -- Mark Pace Mainline Information Systems 1700 Summit Lake Drive Tallahassee, FL. 32317
