On Thu, 23 Apr 2009 16:34:44 -0500, Rich Wenneker <[email protected]> wrote:
>At z/OS 1.9 only one multisystem sysplex can exist in any GRS ring complex. > Thanks. Now I recall hearing something about that change. I just checked the 1.9 GRS manual and it isn't listed under "changes". I took a brief (and I do mean brief) at the section on designing a ring complex and did see the note: Note: Global resource serialization ring complexes can contain XCFLOCAL, MONOPLEX, or systems that are part of a multisystem sysplex. However, only one multisystem sysplex can exist in any global resource serialization complex. But prior to 1.9 you could do it with GRS Ring. >Since PDSE dataset access cannot be serialized across sysplexes the >solution for sharing HSC resources across sysplexes requires some >careful planning and trade off decisions. > Not sure what PDSE has to do with it. The CDS is not a PDSE (although this thread started taking about something different). It is protected via reserve, so it really doesn't take a lot of planning or considerations other than making sure you let the reserve happen from each system or complex accessing the data set. The OP never responded back if the LIBSTATION ENQ was also issued with RESERVE. 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 ---------------------------------------------------------------------- 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
