What I should have indicated was there no NO plans to exceed the number of physical IFLs installed.
The number specified on the MACHINE statement would always be EQ or LT the number of physical IFLs. My question was more on the benefits of running with MORE available to zVM with FEWER specified in the quest directory entry. TIA Gerard -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Mark Post Sent: Thursday, February 14, 2008 2:17 PM To: [email protected] Subject: Re: Running Oracle on GT 2 IFLs >>> On Thu, Feb 14, 2008 at 1:10 PM, in message <[EMAIL PROTECTED]>, "Shockley, Gerard C" <[EMAIL PROTECTED]> wrote: > Excuse the generally vague nature of this question. Here goes ... > > Anyone have any experience pro/con running Oracle under zVM/Linux with > GT N+1 engines. > > Are there benchmark numbers something like LSPR? Here is why. > > We are discussing sizing's and I've heard that it may be advisable to > remove MACHINE statements in the zVM guest directory for Oracle. The general rule is to not have more virtual CPUs defined to guest than that guest can saturate at peak loads. So, if you see your CPU pegging at 100% or close to it, add another CPU. Oracle can and will make use of them. Just don't define extra CPUs "just in case" *unless* you use the maxcpus kernel parameter to only activate (at boot time) the ones you know will get used. Then, if needed, you can activate more than that without taking the system down. Mark Post ---------------------------------------------------------------------- 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
