I've only done this with my z/OS lpars, but in the HMC profile you can have reserve CPs defined to the lpar. The number of reserve CPs can be more then the number of physical CPs. If you dynamically add move physical CPs to your CEC you can then bring online more logical CPs to one or more lpars. As far as I know you can't have more "active" logical CPs then there are physical CPs.
My z/VM lpars are only using IFLs so I have all of the IFLs defined to each lpar. Paul Feller AGT Mainframe Technical Support -----Original Message----- From: Linux on 390 Port [mailto:[email protected]] On Behalf Of Martin, Terry R. (CMS/CTR) (CTR) Sent: Thursday, August 09, 2012 1:25 PM To: [email protected] Subject: Adding LCPUS to a LPAR dynamically Hi I think I know the answer to this but wanted to confirm. If I need to add Logical CPUS to an LPAR does this take an IPL of the LPAR to get them in ? Also if I wanted to add more Logical CPUS to the LPAR than there are physical ones defined can I do this. This would be to avoid the need to IPL if we added more Physical CPUS in the future ? Thank You, Terry Martin Principal Systems Engineer Lockheed Martin CMS - CITIC 3300 Lord Baltimore Drive, Suite 200, 21244 Engineering Computing Mainframe Support Cell - 443 632-4191 Home - 410 527-0286 ---------------------------------------------------------------------- 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 more information on Linux on System z, visit http://wiki.linuxvm.org/ ---------------------------------------------------------------------- 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 more information on Linux on System z, visit http://wiki.linuxvm.org/
