On Fri, 11 Oct 2013 14:21:47 -0400, Mark Jacobs <[email protected]> wrote:
>We're looking into moving to have all of our structures reside in a >single coupling facility lpar, but have a second one configured as a hot >standby, and as a target to move structures to when a planned outage of >the primary CF is necessary. > >I know the answer is "It depends", but does anyone have an WAG on the >CPU usage for the second CF lpar if we use it for structure duplexing >only during normal operations. > (disclaimer... I have no real world experience / measurements to go from - hopefully someone who is duplexing will answer or Mark Brooks). If you duplexed 100% of the structures, my SWAG would be that the CPU usage for the 2nd CF would be the same as the primary CF, but that CPU usage would of course increase due to the overhead / coordination of duplexing. An installation guide to duplexing rebuild: http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/iea2f1c2/4.3?SHELF=all13be9&DT=20120814144655 I assume you really wouldn't do "all" structures. Deciding whether to duplex a structure: http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/iea2f1c2/4.3.2?SHELF=all13be9&DT=20120814144655 Mark -- Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS mailto:[email protected] ITIL v3 Foundation Certified Mark's MVS Utilities: http://www.mzelden.com/mvsutil.html Systems Programming expert at http://search390.techtarget.com/ateExperts/ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
