From my experience in various shops, I'd say that it's unusual not to have all JES2 volumes online at IPL. Timing is the key issue. As long as all needed volumes are online at JES2 start, then there is no problem. If JES2 cannot find a volume that CHECKPOINT says is needed, then there will be intervention required.
One question is how you start JES2. We have this in IEFSSNxx: SUBSYS SUBNAME(JES2) PRIMARY(YES) START(NO) This means that automation (in our case Netview SA) will start JES2 at a point we choose. Even if you have START(YES), I would think that the VARY command would execute first. However device manipulation commands can get delayed especially during early IPL. No point in taking chances. . . 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 [email protected] -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Vernooij, Kees (ITOPT1) - KLM Sent: Monday, November 19, 2018 6:36 AM To: [email protected] Subject: (External):Re: Spool volume 'at IPL time' in this context can be detailed further. The volume must be online at JES2 starttime, which is a little later than IPL time. Kees > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] > On Behalf Of Lizette Koehler > Sent: 19 November, 2018 15:31 > To: [email protected] > Subject: Re: Spool volume > > Is this a JES2 spool volume? > > If yes, has JES2 already allocated it during a normal running of the > system? > > If yes, then it should be online at IPL Time. > > JES2 knows to look for volumes at IPL time that have a specific prefix. > > Use the $DSPOOLDEF command and determine if the volume is the same as > the VOLSER > > Next, JES2 at START UP will look for the dataset name specified in the > $DSPOOLDEF command. If it is there, then JES2 will allocate the volume. > If the > dataset is not on the volume, you should see a message that JES2 could > not find a SPOOL SPACE on that volume. > > Everything will depend on what JES2 is to look for at IPL time. > > I would not vary any volume that JES2 could use a SPOOL SPACE offline. > If that > is needed, then clip the volume to something that is not a JES2 SPOOL > Volume name > > > What problem are you trying to solve? > > Lizette > > > > -----Original Message----- > > From: IBM Mainframe Discussion List <[email protected]> On > Behalf Of > > Sankaranarayanan, Vignesh > > Sent: Monday, November 19, 2018 4:40 AM > > To: [email protected] > > Subject: Spool volume > > > > Hello List! > > > > Let's say there is a mod27 volume of unit abcd. > > This is available to an LPAR (via IODF), but is defined with > OFFLINE=YES, so > > not immediately available at IPL, but can be brought online (vary > > ad- > hoc or > > via COMMNDxx). > > > > Is there any constraint that a spool volume needs to be OFFLINE=NO > > in > the > > IODF.. or is COMMNDxx read before the JES2 startup (JES2's PARMLIB > member), > > that an IODF change is not required? > > > > Thank you! > > > > - Vignesh > > Mainframe Infrastructure ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
