On Tue, 12 May 2009 12:50:22 -0500, Al Sherkow <[email protected]> wrote:
>Hi Jim -- > >I think the engines just be in the LPAR configuration as 'reserved' at the >previous IPL for MVS to recognize them. PR/SM can use additional engines >lowering the logical to physical ratio, but MVS only builds enough control >blocks on for the number of initial engines plus the number of reserved >engines. > >This may have been improved with recent releases of z/OS but this was >certainly an issue in the past. > On Tue, 12 May 2009 18:17:22 +0000, Ted MacNEIL <[email protected]> wrote: >This will work if you have extra CP's in the RSVD field for the image profile. >If you don't, you will have to re-set, re-activate & re-IPL. > It was true as Al and Ted wrote, but no longer true with z/OS 1.10. http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?subtype=ca&infotype=an&appname=iSource&supplier=897&letternum=ENUS208-186 >From the announcement: Scalability improvements for z/OS V1.10 include: Up to 64 processors per logical partition, and up to 60 LPARs per server are supported for z/OS V1.10 and System z10. With up to 64 processors per logical partition and as many as 32 z/OS logical partitions able to be configured in a Parallel Sysplex cluster, up to 2,048 engines' worth of processing capacity is available to application workloads. This support is also available on z/OS V1.9. In addition, z/OS V1.10 adds support to allow you to add a new processor to an LPAR running a z/OS image without an IPL. -- 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 ---------------------------------------------------------------------- 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
