Thank you all for your response. It was decided to accelerate (like, right now) into production our current testing/development of upgrade from z/VM3.1 to z/VM5.3 . It is a big challenge to do it in such a short time.
Thanks again, Ismael -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Jim Elliott Sent: Wednesday, June 18, 2008 6:58 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: zVM 3.1 at 100% CPU after z9 upgrade > We are running production work on zVM 3.1 (don't ask why) > running 2nd level under zVM 5.1 . Things has been running good > for more than a year until t his change: Hardware was upgraded > from z990 to z9 . Now guest zVM3.1 is running 100% cpu; 1st > level zVM 5.1 is running 100% CPU. We can't go back t o z990 > because many more zOS are running in other LPARs. Ismael: There are no processor specific PTFs to z/VM V5 for the z9 that I can see that might cause this. Assuming you were current on z/VM service for the z990, of course. I am also not aware of anything in the z9 that is different from the z990 that would cause issues for z/VM V3. As others have suggested, use something like Track, ESAMON, Perfkit/RTM to find out what is causing the high CPU utilization. Jim ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
