Hello, The z800 runs a mixture of z/OS and zLinux guests. The overall LOAD of the z/VM is something like:
AVGPROC-039% 02 XSTORE-000005/SEC MIGRATE-0000/SEC MDC READS-000001/SEC WRITES-000001/SEC HIT RATIO-100% STORAGE-092% PAGING-0000/SEC STEAL-000% Q0-00003(00000) DORMANT-00011 Q1-00003(00000) E1-00000(00000) Q2-00001(00000) EXPAN-002 E2-00000(00000) Q3-00018(00000) EXPAN-002 E3-00000(00000) PROC 0000-039% PROC 0001-040% LIMITED-00000 Ready; T=0.01/0.01 14:09:01 This z/os virutal machine has been acting weird all morning and I had to IPL it at least twice. Over the past couple of days, I'd been ATTaching and DETaching several DASD packs to this z/OS and running volume level backups. I didn't experience any problems until this morning, when the z/os console became unresponsive and the whole virutal machine shot craps. Here's the weirdest thing of all, I changed the NAME of the virtual machine in z/VMs directory and IPL'd again and I haven't had a problem yet (but I also lowered the memory size from 1GB to 512Mb). Does a virtual machine's CP control blocks survive LOGON/LOGOFF of the virtual machine? I'm wondering if all that ATTaching and DETaching wrecked something in CP in relation to this guest [kind of a longshot, I know]. db -----Original Message----- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Raymond Noal Sent: Thursday, March 20, 2008 2:04 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: z/OS on z/VM Eligible List David, What other virtual machines do you have running along with this z/OS virtual machine? What is your CPU utilization? Is the z/VM system's paging rate high? (albeit a relative number when comparing different systems) You can add the QUICKDSP parameter to the OPTION statement in the z/VM directory to keep this virtual machine on the dispatch list. When you say the console was unresponsive, which console are you referring to? Is this the z/OS virtual machine console or a z/OS console? Some additional performance related information would be of great assistance for the list members to better advise you. HITACHI DATA SYSTEMS Raymond E. Noal Senior Technical Engineer Office: (408) 970 - 7978
