We turned it on by default about 6 months after release. Works for Control Areas first used after CA-Reclaim is turned on for the dataset / system.
On Thu, Sep 29, 2016 at 3:59 PM, Jesse 1 Robinson <jesse1.robin...@sce.com> wrote: > Thanks. Spent some time this morning wading through the doc. Here's a > thumbnail version of my understanding. > > -- CA reclaim must be 'turned on' at the system level in PARMLIB IGDSMSxx. > Default value is 'off'. > -- It can also be turned on or off for a system with a SETSMS command. > -- Once turned on globally, CA reclaim will be in effect for (more or less) > every VSAM cluster unless a cluster is specifically turned off. That is, the > default at the cluster level is on. My RMM control data set is 'on' as shown > by LISTCAT. > -- You can turn a cluster off or back on with a simple ALTER command--which > BTW I cannot find documented anywhere except in KC discussions of CA reclaim. > For example, I cannot find any reference to reclaim in TSO HELP for ALTER. > -- The IDCAMS command is "ALTER entry-name RECLAIM/NORECLAIM". That command > is accepted now when I enter it even though we do not have reclaim turned on > globally. > > So if you turned reclaim on for 'some user catalogs' and for SMS control data > sets, did you take any action to turn it off for everything else in the house? > > . > . > J.O.Skip Robinson > Southern California Edison Company > Electric Dragon Team Paddler > SHARE MVS Program Co-Manager > 323-715-0595 Mobile > 626-302-7535 Office > robin...@sce.com > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Mike Schwab > Sent: Thursday, September 29, 2016 12:57 PM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: (External):Re: VSAM CA reclaim for RMM > > We had some user catalogs needing annual reorgs. Control Area Reclaim > eliminated this. Helped with SMS control data sets and ML1 Small Data Set. > Don't know about user datasets. > > On Thu, Sep 29, 2016 at 11:08 AM, Jesse 1 Robinson <jesse1.robin...@sce.com> > wrote: >> (In honor of today's post from Mike Wood.) We don't make much (if any) use >> of CA reclaim here. It occurs to me that RMM might be an excellent >> candidate. We periodically have to reorg the data base-sometimes when RMM >> crashes in the middle of the day. >> >> When CA reclaim was first presented at a closed SHARE session on a Sunday >> morning, there was great interest in the room but also some skepticism. >> What is the current consensus on CA reclaim? How extensively is it >> implemented these days? Recommendations? >> >> . >> . >> J.O.Skip Robinson >> Southern California Edison Company >> Electric Dragon Team Paddler >> SHARE MVS Program Co-Manager >> 323-715-0595 Mobile >> 626-302-7535 Office >> robin...@sce.com<mailto:robin...@sce.com> > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
