Re: JES2 Dynamic Proclibs - Advantages?
Yes, I did. And concur with the usefulness of it. Bob -Original Message- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Rick Fochtman Sent: Monday, November 23, 2009 4:10 PM To: IBM-MAIN@bama.ua.edu Subject: Re: JES2 Dynamic Proclibs - Advantages? --snip I did it. Why? Because we had some __USER__ proclibs in PROC00. What happens if they are deleted? JES2 stays up, but fails at the next IPL. With dynamic PROCLIB, JES2 will come up, but with error messages about what was missing. You can then manually enter the dynamic PROCLIB statements, ignoring the missing PROCLIB and continue processing. That's the only reason that I did it. -unsnip--- That feature is also INCREDIBLY useful during a Disaster Recovery scenario, when volumes might be incompletely or improperly recovered. Saved our rears during the Chicago Flood of 1992! Evcen though the feature was implemented vya JES2 exits and somewhat less than perfect. :-) Bob R., I think you saw some of the last vestiges of this during your visit at Clearing. Rick -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
JES2 Dynamic Proclibs - Advantages?
I know that using dynamic proclibs gives you the ability to change the proclib concatenations dynamically and also the ability to rebuild pointers if a library has gone into extents or been compressed. My shop uses static concatenations. We haven't needed to change the proclib concatenations in several years and JCL can be used to rebuild JES2's pointers if needed. I'd like to convert to dynamic proclibs because it seems more modern and cooler. But I wonder if it's really necessary for my installation and maybe I'd just be doing work for work's sake. Any opinions? Am I missing some benefits? Luke Rabbe -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: JES2 Dynamic Proclibs - Advantages?
On Mon, 23 Nov 2009 07:54:28 -0600, Rabbe, Luke luke.ra...@countryfinancial.com wrote: I know that using dynamic proclibs gives you the ability to change the proclib concatenations dynamically and also the ability to rebuild pointers if a library has gone into extents or been compressed. My shop uses static concatenations. We haven't needed to change the proclib concatenations in several years and JCL can be used to rebuild JES2's pointers if needed. I'd like to convert to dynamic proclibs because it seems more modern and cooler. But I wonder if it's really necessary for my installation and maybe I'd just be doing work for work's sake. Any opinions? Am I missing some benefits? IMO the best benefit is the removal of the possibility of JCL error during JES2 start because someone moved or deleted a proclib. Remember, JES2 by default doesn't ENQ on the PROCLIBs and also PROCLIB data sets not in the master catalog may have their volser coded. So they could be accidentally deleted or perhaps moved by someone who didn't realize the impact (I'm sure we could start a war stories thread here, but let's not). With dynamic proclibs JES2 will still start and tell you about the problem if it can't find one of the libraries. After you fix it you can issue a $TPROCLIB(*) and it will attempt to reallocate the concatenation(s) per the parms. This was helpful to us back when we did tape based disaster recovery because some of the application PROCLIBs were not available for a while after the base system was IPLed. Prior to dynamic proclibs a different JES2 proc was used at the start and then the application proclibs were added after they were restored and JES2 was recycled. Cheers, Mark -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - ZFUS G-ITO mailto:mark.zel...@zurichna.com z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/ Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: JES2 Dynamic Proclibs - Advantages?
Biggest reason to use Dynamic Proclibs is your end users cannot reallocate/compress it and cause JES2 to fail. The other process I like my end users to use is JCLLIB dd statement. Then they have complete control and do not need me to handle their proclib datasets. They are responsible for backup and recovery of their proclibs at least for their test ones. I still do dfdss dumps of all prod datasets so that would include their production proclibs.. I have my JES2 proc down to mostly SYSTEM proclibs and only one production proclib dataset. Lizette I know that using dynamic proclibs gives you the ability to change the proclib concatenations dynamically and also the ability to rebuild pointers if a library has gone into extents or been compressed. My shop uses static concatenations. We haven't needed to change the proclib concatenations in several years and JCL can be used to rebuild JES2's pointers if needed. I'd like to convert to dynamic proclibs because it seems more modern and cooler. But I wonder if it's really necessary for my installation and maybe I'd just be doing work for work's sake. Any opinions? Am I missing some benefits? -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: JES2 Dynamic Proclibs - Advantages?
Luke Rabbe of the IBM Mainframe Discussion List IBM-MAIN@bama.ua.edu wrote on 11/23/2009 07:54:28 AM: I know that using dynamic proclibs gives you the ability to change the proclib concatenations dynamically and also the ability to rebuild pointers if a library has gone into extents or been compressed. My shop uses static concatenations. We haven't needed to change the proclib concatenations in several years and JCL can be used to rebuild JES2's pointers if needed. I'd like to convert to dynamic proclibs because it seems more modern and cooler. But I wonder if it's really necessary for my installation and maybe I'd just be doing work for work's sake. Any opinions? Am I missing some benefits? One benefit of JCLLIB might be reduced search time for a procedure. Another might be documentation when looking for the source of the PROC. Regards, John K -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: JES2 Dynamic Proclibs - Advantages?
-Original Message- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Rabbe, Luke Sent: Monday, November 23, 2009 7:54 AM To: IBM-MAIN@bama.ua.edu Subject: JES2 Dynamic Proclibs - Advantages? I know that using dynamic proclibs gives you the ability to change the proclib concatenations dynamically and also the ability to rebuild pointers if a library has gone into extents or been compressed. My shop uses static concatenations. We haven't needed to change the proclib concatenations in several years and JCL can be used to rebuild JES2's pointers if needed. I'd like to convert to dynamic proclibs because it seems more modern and cooler. But I wonder if it's really necessary for my installation and maybe I'd just be doing work for work's sake. Any opinions? Am I missing some benefits? Luke Rabbe I did it. Why? Because we had some __USER__ proclibs in PROC00. What happens if they are deleted? JES2 stays up, but fails at the next IPL. With dynamic PROCLIB, JES2 will come up, but with error messages about what was missing. You can then manually enter the dynamic PROCLIB statements, ignoring the missing PROCLIB and continue processing. That's the only reason that I did it. -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * (817)-961-6183 cell john.mck...@healthmarkets.com * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: JES2 Dynamic Proclibs - Advantages?
On Mon, 23 Nov 2009 08:55:59 -0600, John P Kalinich jkali...@csc.com wrote: I know that using dynamic proclibs gives you the ability to change the proclib concatenations dynamically and also the ability to rebuild pointers if a library has gone into extents or been compressed. My shop uses static concatenations. We haven't needed to change the proclib concatenations in several years and JCL can be used to rebuild JES2's pointers if needed. I'd like to convert to dynamic proclibs because it seems more modern and cooler. But I wonder if it's really necessary for my installation and maybe I'd just be doing work for work's sake. Any opinions? Am I missing some benefits? Several people responded about using JCLLIB. Just to be clear, JCLLIBs have their advantages, but that is a different issue than converting from static to dynamic PROCLIBs and requires JCL changes (especially if the formerly static PROCLIBs are changed to dynamic definitions in JES2!). Mark -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - ZFUS G-ITO mailto:mark.zel...@zurichna.com z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/ Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: JES2 Dynamic Proclibs - Advantages?
On Mon, 23 Nov 2009 10:03:52 -0600, Mark Zelden mark.zel...@zurichna.com wrote: On Mon, 23 Nov 2009 08:55:59 -0600, John P Kalinich jkali...@csc.com wrote: I know that using dynamic proclibs gives you the ability to change the proclib concatenations dynamically and also the ability to rebuild pointers if a library has gone into extents or been compressed. My shop uses static concatenations. We haven't needed to change the proclib concatenations in several years and JCL can be used to rebuild JES2's pointers if needed. I'd like to convert to dynamic proclibs because it seems more modern and cooler. But I wonder if it's really necessary for my installation and maybe I'd just be doing work for work's sake. Any opinions? Am I missing some benefits? Several people responded about using JCLLIB. Just to be clear, JCLLIBs have their advantages, but that is a different issue than converting from static to dynamic PROCLIBs and requires JCL changes (especially if the formerly static PROCLIBs are changed to dynamic definitions in JES2!). That should have been written are NOT changed to dynamic. :-( -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - ZFUS G-ITO mailto:mark.zel...@zurichna.com z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/ Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: JES2 Dynamic Proclibs - Advantages?
Thanks to all for the replies. Luke -Original Message- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Rabbe, Luke Sent: Monday, November 23, 2009 7:54 AM To: IBM-MAIN@bama.ua.edu Subject: JES2 Dynamic Proclibs - Advantages? I know that using dynamic proclibs gives you the ability to change the proclib concatenations dynamically and also the ability to rebuild pointers if a library has gone into extents or been compressed. My shop uses static concatenations. We haven't needed to change the proclib concatenations in several years and JCL can be used to rebuild JES2's pointers if needed. I'd like to convert to dynamic proclibs because it seems more modern and cooler. But I wonder if it's really necessary for my installation and maybe I'd just be doing work for work's sake. Any opinions? Am I missing some benefits? Luke Rabbe -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: JES2 Dynamic Proclibs - Advantages?
On Mon, 23 Nov 2009 11:36:45 -0600, Rabbe, Luke luke.ra...@countryfinancial.com wrote: Thanks to all for the replies. Luke I have a question if I may... What happens if say there is a dynamic library in the concatenation missing at JES startup? Does JES continue on notifying you of the missing library or does it stop and make you re-enter the whole list again at the prompt like it does when you have invalid syntax on one of the JES parmlib operands? TIA, PTL -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: JES2 Dynamic Proclibs - Advantages?
You get allocation error message IKJ56228I and JES2 continues on its merry way. No responses necessary. -Original Message- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Patrick Lyon Sent: Monday, November 23, 2009 11:56 AM To: IBM-MAIN@bama.ua.edu Subject: Re: JES2 Dynamic Proclibs - Advantages? On Mon, 23 Nov 2009 11:36:45 -0600, Rabbe, Luke luke.ra...@countryfinancial.com wrote: Thanks to all for the replies. Luke I have a question if I may... What happens if say there is a dynamic library in the concatenation missing at JES startup? Does JES continue on notifying you of the missing library or does it stop and make you re-enter the whole list again at the prompt like it does when you have invalid syntax on one of the JES parmlib operands? TIA, PTL -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: JES2 Dynamic Proclibs - Advantages?
Thanks Dennis and Mark! -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: JES2 Dynamic Proclibs - Advantages?
That entirely depends on whether you have taken the default of CONDITIONAL or if you code UNCONDITIONAL. If you take the default, there will be a JES2 message (not the TSO / DYNALLOC message) about the allocation failure and you will get the standard $HASP469 parm error reply message. See the JES2 init and tuning manual for more details. There are pros/cons of each choice. If you have a way to always fix the problem (from another system for example), you may want CONDITIONAL so you find out about any surprises at IPL time and not later when the phone rings if someone misses the IKJ56228I message - which would be very easy to do with hundreds of messages scrolling by at IPL time. Also, the entire statement is failed, which could mean no PROCLIB concatenation at all and no way to start VTAM/TSO in order to fix the problem easily. You can fix it via operator prompt input if you can figure out the syntax. :-) That being said, I still prefer UNCONDITIONAL to let JES2 start with the PROCLIB concatenation minus the offending library. If it is an STC PROCLIB, I'll find out soon enough. :-) If it is a user proclib, well, it's not that critical anyway and I can fix it later. g,d r Mark -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - ZFUS G-ITO mailto:mark.zel...@zurichna.com z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/ Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html On Mon, 23 Nov 2009 12:41:13 -0600, Dennis Trojak dennis.tro...@radioshack.com wrote: You get allocation error message IKJ56228I and JES2 continues on its merry way. No responses necessary. -Original Message- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Patrick Lyon Sent: Monday, November 23, 2009 11:56 AM To: IBM-MAIN@bama.ua.edu Subject: Re: JES2 Dynamic Proclibs - Advantages? On Mon, 23 Nov 2009 11:36:45 -0600, Rabbe, Luke luke.ra...@countryfinancial.com wrote: Thanks to all for the replies. Luke I have a question if I may... What happens if say there is a dynamic library in the concatenation missing at JES startup? Does JES continue on notifying you of the missing library or does it stop and make you re-enter the whole list again at the prompt like it does when you have invalid syntax on one of the JES parmlib operands? TIA, PTL -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: JES2 Dynamic Proclibs - Advantages?
--snip I did it. Why? Because we had some __USER__ proclibs in PROC00. What happens if they are deleted? JES2 stays up, but fails at the next IPL. With dynamic PROCLIB, JES2 will come up, but with error messages about what was missing. You can then manually enter the dynamic PROCLIB statements, ignoring the missing PROCLIB and continue processing. That's the only reason that I did it. -unsnip--- That feature is also INCREDIBLY useful during a Disaster Recovery scenario, when volumes might be incompletely or improperly recovered. Saved our rears during the Chicago Flood of 1992! Evcen though the feature was implemented vya JES2 exits and somewhat less than perfect. :-) Bob R., I think you saw some of the last vestiges of this during your visit at Clearing. Rick -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
