Even if you have no reserved engines, assuming multiple LPARs sharing engines, there would be more engines total in the pool for sharing, which could provide the needed capacity. If the number of LPs matched the number of physical CPs, it wouldn't help.
With z/OS 1.10 and above and z10 hardware, you can dynamically add LPs to the running OS on the fly without any outage. Mark -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - ZFUS G-ITO mailto:[email protected] z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/ Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html On Fri, 16 Oct 2009 16:00:39 -0500, Field, Alan C. <[email protected]> wrote: >When they apply the microcode the engine is immediately available. > >Providing you have set up the image profiles with reserved CPUs defined >you can simply CF CPU(nn),ONLINE. > >A D M=CPU will show + for online CPUS, - for reserved or offline CPUS. > >Alan > >-----Original Message----- >From: IBM Mainframe Discussion List [mailto:[email protected]] On >Behalf Of Peter Vander Woude >Sent: Friday, October 16, 2009 15:56 >To: [email protected] >Subject: cpu upgrade > >Nowadays, if you upgrade the cpu capacity, by having ibm just apply the >feature code to the box, does this take effect immediately on all the >lpars, or >must each lpar be ipl'd to pick up the new capacity? > >peter > >---------------------------------------------------------------------- >For IBM-MAIN subscribe / signoff / archive access instructions, >send email to [email protected] with the message: GET IBM-MAIN INFO >Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
