Gordon, We recently discovered that the System Activity Display (SAD)data being sent by the SE is not always correct when IFLs are in use. The fix for this is in the process of being released. It looks like your system is set up correctly and is in fact using the IFL in your "Linux Only" LPAR, but SAD is not showing the correct information.
Steve Nichols HMC Architect >From: "Wolfe, Gordon W" <[EMAIL PROTECTED]> >Subject: Re: Using IFL processor >Comments: cc: "IBM-VMESA-L (E-mail)" [EMAIL PROTECTED]> > >Crossposted to Linux on 390 port list and VM/ESA list. Sorry for the >duplicates. > >About two months ago I wrote to this list asking about how to set up VM to >run on an IFL processor. > >We've finally got z/VM 4.2.0 up to where we can IPL it in a new LPAR. We >have a 9672-r36 with an IFL engine and we want to run it in the new LPAR on >a dedicated IFL engine. > >In the HMC we've defined the LPAR to be "Linux Only" in the General tab of >the LPAR image profile. Activating the image profile we even get a cute >little icon with a penguin on it in the list of CPC images. However, it >will not IPL if we set up the processor for the LPAR as "dedicated central >processors" on the "processor" tab of the image profile (says no processors >are available and to free one up from the other LPARs). It -will- IPL if we >set this up as "dedicated integrated coupling facilities processor". So >far, so good. > >However, looking at the SAM monitor shows CP0 CP1 and CP2 (our 390 >processors on this box) active, but CP3 as not active. Furthermore, if we >start a program on the Linux/zVM420 LPAR running that chews up CPU time - VM >in the LPAR shows 94% active - we note that CP0, CP1 and CP2 increase their >bars in the SAM monitor and CP3 does not. If we stop the program, the bars >return to normal. It appears that we are NOT running on the IFL engine! > >Has anyone actually gotten z/VM 4.2.0 to run on an IFL engine in a G5 >processor? If so, how did you do it? > >"Never trust any computer you can lift." >Gordon Wolfe, Ph.D. (425)865-5940 >VM Technical Services, The Boeing Company >
