Re: Need help for two LPARS sharing DASD
John, We run a home-written REXX that uses a combination of volume naming conventions and catalog information to vary offline the volumes not wanted. Our volsers have either a system id, a sysplex id, or a 3-char application id in them. The system and plex ids are checked against system variables. The application id is checked against what user catalogs are defined. The exec generates V -,OFFLINE commands that are fed into a SDFS step. Whole thing is started by System Automation at IPL time. We don't have to manually maintain IODF settings or VARY commands to keep track of what should be online/offline. Bart -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of John Norgauer Sent: Wednesday, June 18, 2014 2:23 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Need help for two LPARS sharing DASD My production LPAR and Test LPAR have access to almost 600 volumes. My test LPAR only uses and needs about 24 volumes. Any ideas how, at IPL time for the test LPAR, I can use commands to restrict the LPAR to only these 24 volumes. For sure, I could issue vary off and vary on commands for only those volumes needed or not needed by the test LPAR, but the UCB's are so numerous that there would be dozens of commands. I am just trying to have a smaller list of commands in my COMMNDXX member Any other simpler way to accomplish this task? Thanks. John Norgauer Senior Systems Programmer Mainframe Technical Support Services University of California Davis Medical Center 1651 Alhambra Blvd Suite 200 Sacramento, Ca 95816 916-734-0536 SYSTEMS PROGRAMMING.. Guilty, until proven innocent !! "JN 2004 "Hardware eventually breaks - Software eventually works" anon -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: Need help for two LPARS sharing DASD
An OS config for each plex (not LPAR) is the best way to handle this case. No harm in giving yourself plenty of extra volumes in the test plex config for adding or moving data. Just not hundreds. Varying 50 volumes offline takes a far smaller toll on your system than 500. Having lived this way for many years, I suggest also maintaining a fallback OS config that puts all volumes online at IPL just in case something you need happens to wander outside the designated range. Include a LOADxx member for this all-inclusive config. . . J.O.Skip Robinson Southern California Edison Company Electric Dragon Team Paddler SHARE MVS Program Co-Manager 626-302-7535 Office 323-715-0595 Mobile jo.skip.robin...@sce.com From: Shane Ginnane To: IBM-MAIN@LISTSERV.UA.EDU, Date: 06/18/2014 05:43 PM Subject:Re: Need help for two LPARS sharing DASD Sent by:IBM Mainframe Discussion List On Wed, 18 Jun 2014 18:56:44 +, Gibney, Dave wrote: > I don't like the idea of messing with my IODF every time I change the volumes my sandbox(s) need. This seems a common refrain, but I have to agree with Matthew - I like the OSCONFIG option. Seems the John has a fairly static list of volumes - extras needed can be varied as needed. Now, about GRS ... Shane ... -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: Need help for two LPARS sharing DASD
On Wed, 18 Jun 2014 18:56:44 +, Gibney, Dave wrote: > I don't like the idea of messing with my IODF every time I change the volumes > my sandbox(s) need. This seems a common refrain, but I have to agree with Matthew - I like the OSCONFIG option. Seems the John has a fairly static list of volumes - extras needed can be varied as needed. Now, about GRS ... Shane ... -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: Need help for two LPARS sharing DASD
Just go ahead and issue the vary commands. You may get a "command flooding in class M2" message if there are enough commands. The resolution to this is do nothing. z/OS will handle the command flooding and you will eventually see a 'command flooding relieved in class M2" message. You can reduce the number of commands with the "range" version of the command. V -,offline Excerpt from my test lpar COMMNDxx member COM='V 8000-80BF,OFFLINE' COM='V 8100-81BF,OFFLINE' COM='V 8200-82BF,OFFLINE' COM='V 8300-83BF,OFFLINE' COM='V 8400-84BF,OFFLINE' COM='V 8500-8503,OFFLINE' COM='V 8505-85BF,OFFLINE' COM='V 8600-8603,OFFLINE' < note volume 8604 is left online... COM='V 8605-86BF,OFFLINE' COM='V 8700-8703,OFFLINE' HTH, My production LPAR and Test LPAR have access to almost 600 volumes. My test LPAR only uses and needs about 24 volumes. Any ideas how, at IPL time for the test LPAR, I can use commands to restrict the LPAR to only these 24 volumes. For sure, I could issue vary off and vary on commands for only those volumes needed or not needed by the test LPAR, but the UCB's are so numerous that there would be dozens of commands. I am just trying to have a smaller list of commands in my COMMNDXX member Any other simpler way to accomplish this task? -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: Need help for two LPARS sharing DASD
I don't like the idea of messing with my IODF every time I change the volumes my sandbox(s) need. We use v -,offline your worst case seems to be 26 commands, which is just barely dozens. > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On Behalf Of Matthew Stitt > Sent: Wednesday, June 18, 2014 11:46 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: Need help for two LPARS sharing DASD > > The simplest method is to create an OSCONFIG in your IODF for each system. > For the test system, mark the volumes as offline except for the 24 volumes > you want to use. > > Make sure you set the LOADxx parameters to specify the OSCONFIG you want > to use. > > Matthew > > On Wed, 18 Jun 2014 11:22:59 -0700, John Norgauer > wrote: > > >My production LPAR and Test LPAR have access to almost 600 volumes. > > > >My test LPAR only uses and needs about 24 volumes. > > > >Any ideas how, at IPL time for the test LPAR, I can use commands to > >restrict the LPAR to only these 24 volumes. > > > >For sure, I could issue vary off and vary on commands for only those > >volumes needed or not needed by the test LPAR, but the UCB's are so > >numerous that there would be dozens of commands. I am just trying to > >have a smaller list of commands in my COMMNDXX member > > > >Any other simpler way to accomplish this task? > > > >Thanks. > > -- > 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
Re: Need help for two LPARS sharing DASD
The simplest method is to create an OSCONFIG in your IODF for each system. For the test system, mark the volumes as offline except for the 24 volumes you want to use. Make sure you set the LOADxx parameters to specify the OSCONFIG you want to use. Matthew On Wed, 18 Jun 2014 11:22:59 -0700, John Norgauer wrote: >My production LPAR and Test LPAR have access to almost 600 volumes. > >My test LPAR only uses and needs about 24 volumes. > >Any ideas how, at IPL time for the test LPAR, I can use commands to >restrict the LPAR to only these 24 volumes. > >For sure, I could issue vary off and vary on commands for only those >volumes needed or not needed by the test LPAR, >but the UCB's are so numerous that there would be dozens of commands. I >am just trying to have a smaller list of commands >in my COMMNDXX member > >Any other simpler way to accomplish this task? > >Thanks. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Need help for two LPARS sharing DASD
My production LPAR and Test LPAR have access to almost 600 volumes. My test LPAR only uses and needs about 24 volumes. Any ideas how, at IPL time for the test LPAR, I can use commands to restrict the LPAR to only these 24 volumes. For sure, I could issue vary off and vary on commands for only those volumes needed or not needed by the test LPAR, but the UCB's are so numerous that there would be dozens of commands. I am just trying to have a smaller list of commands in my COMMNDXX member Any other simpler way to accomplish this task? Thanks. John Norgauer Senior Systems Programmer Mainframe Technical Support Services University of California Davis Medical Center 1651 Alhambra Blvd Suite 200 Sacramento, Ca 95816 916-734-0536 SYSTEMS PROGRAMMING.. Guilty, until proven innocent !! "JN 2004 "Hardware eventually breaks - Software eventually works" anon -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
