SYSRES are 27s. Still using primarily 9s for other stuff but gradually moving to 27s.
Rex -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Ed Jaffe Sent: Thursday, October 04, 2018 11:16 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: [External] SYSRES Volume Size (Was: S106 abends ...) What size SYSRES do most shops use these days? We have settled on Mod-27 as our "standard" volume for almost everything. We also have some Mod-9s and Mod-216s for special purposes. No Mod-1s, Mod-2s, Mod-3s, Mod-54s, or any other "oddball" sizes. Just the three described above... On 10/4/2018 8:26 AM, Jesse 1 Robinson wrote: > I sympathize with IBM's predicament in reading the future maintenance tea > leaves. The 'fix rate' for a product might be subject to guesstimation from > past experience. But the effects of future enhancements like SPEs and > customer requirements are a bundle of uncertainties wrapped in unknowns. The > change from six month to two year release cycles further clouded space > predictions. > > I think customers are best off expecting data set expansions. A few like > LINKLIB and LPALIB can be deliberately oversized as likely candidates for > increase in a variety of components. But the migratable sysres volume is > limited to whatever size installation has settled on. Secondary extents, in > my view, allow for unpredictable expansion with acceptable risk. > > . > . > J.O.Skip Robinson > Southern California Edison Company > Electric Dragon Team Paddler > SHARE MVS Program Co-Manager > 323-715-0595 Mobile > 626-543-6132 Office ⇐=== NEW > robin...@sce.com > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of John Eells > Sent: Thursday, October 04, 2018 4:35 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: (External):Re: S106 abends after copying into LINKLIST > > Elardus Engelbrecht wrote: > >> This is why you see in Program Directories the required space for each >> dataset/OMVS files needed for each product you ordered. > Let's just be clear about what those space numbers represent. > > They are: > > - a fixed percentage larger (10 or 15%, I forget right now) than the amount > of space consumed by each data set at a particular point in time > - are measured at the specified block sizes when the FMIDs represented by > that program directory were submitted to software manufacturing and never > updated > - provide information for only that product and no others that might share > the data set. > > So if PTFs cause the space required to grow by more than the fixed > percentage, or you use different block sizes than we specify (which is not to > your advantage in general), or fail to add the space required by all products > sharing a data set together, you will be in x37 City before you know it. > > ServerPac production is smart enough to adjust space on the fly, BTW, so the > free space allocated by default stays at a fixed percentage even as PTFs > consume more space in the data sets for the products included. For CBPDO, > you get to guess yourself. > > -- > John Eells > IBM Poughkeepsie > ee...@us.ibm.com -------------------------------------------------------------------------------- This e-mail message, including any attachments, appended messages and the information contained therein, is for the sole use of the intended recipient(s). If you are not an intended recipient or have otherwise received this email message in error, any use, dissemination, distribution, review, storage or copying of this e-mail message and the information contained therein is strictly prohibited. If you are not an intended recipient, please contact the sender by reply e-mail and destroy all copies of this email message and do not otherwise utilize or retain this email message or any or all of the information contained therein. 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