Colin, I would greatly appreciate it if you could provide any additional information on the problem you had during SHUTDOWN. Did IBM give you a PTF or what? Is there something you can give me to find this on IBMLINK? Doing a search for 'SHUTDOWN' on IBMLINK did not provide any help. I thank you in advance for your time and assistance. HITACHI DATA SYSTEMS Raymond E. Noal Senior Technical Engineer Office: (408) 970 - 7978 ________________________________
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Colin Allinson Sent: Tuesday, October 07, 2008 11:30 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: z/VM 5.4.0 - SHUTDOWN HANGS Raymond Noal <[EMAIL PROTECTED]> wrote :- > SHUTDOWN processing starts and the last line displayed is for DISABLE ALL DEVICES. We have had a problem with various versions of z/VM 5.x (we are on 5.4 currently) where the DISABLE ALL DEVICES took an extremely long time on a 1st level system. When I say long, I mean looonnngggg (sometimes up to 45 minutes). We pinned the problem down to 2 boxes of 4096 non-IBM (SUN/STK) DASD that was giving different exception responses at this stage. There was disagreement because Sun/STK said they were doing it by the spec while IBM said differently. I would have to look up the details but we got a fix from IBM to exclude this range of DASD from exception processing during SHUTDOWN and we are now fine. Not sure if this is any help. Colin Allinson Amadeus Data Processing GmbH
