> -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On Behalf Of Mark Zelden > Sent: Wednesday, September 11, 2013 6:58 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: PDS/E, Shared Dasd, and COBOL V5 > > On Wed, 11 Sep 2013 07:57:47 -0400, Shmuel Metz (Seymour J.) > <shmuel+...@patriot.net> wrote: > > >In <0DE6A9840123E547B061AC5B6765C026BD08EB@EXMB- > 05.ad.wsu.edu>, on > >09/10/2013 > > at 02:44 AM, "Gibney, Dave" <gib...@wsu.edu> said: > > > >>Yes, PDS/E shared outside of Sysplex is a problem if the sharing is > >>not close to strictly read only. Specifically, address spaces with the > >>PDS/E open in LPAR A will not like it after you update the PDS/E from > >>LPAR B > > > >The same applies to two z/OS guests in the same LPAR but not the same > >sysplex. > > > >Also, aren't there sharing issues even for R/O Or am I thinking of zFS? > > > > Neither. zFS can safely be shared R/O outside sysplex / GRS > boundaries. BTW, with PDSESHARING(NORMAL), PDSE can > be shared R/W outside the sysplex, but the boundaries must still > be within the GRSplex. However, they can't be shared R/W between > systems managed by MII (MIM) because the ENQs issued for > SYSZIGW0 and SYSZIGW1 are issued with RNL=NO. IIRC, this > wasn't always the case and IBM "broke this" for CA MIM > customers around DFSMS/MVS 1.5. Thank you IBM. > > Regards,
I usually don't disagree with Mark, but my experience is that without the XCF communication Barbara mentioned (i.e. inside a sysplex), updating a PDS/E from one LPAR can cause abends of address spaces in another LPAR that are actively using the PDS/E. Specifically, when VPS from LRS shipped with all PDS/E including the CNTL libraries, I abended my production VPS by modifying shared printer definitions from the development LPAR. > > Mark > -- > Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS > mailto:m...@mzelden.com > 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 lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
