Re: JES2 Checkpoint question
The JES2 checkpoint is the only mechanism that maps spool data. Assuming two outboard copies of the checkpoint--wherever located--either one can be reconstructed dynamically from the other even at IPL time. If both are lost or destroyed--wherever located--you are SOL at IPL time. In particular, the checkpoint *cannot* be recovered or reconstructed from spool data alone. Without a usable copy of the checkpoint somewhere (in memory counts), spool data is meaningless. Cold start time. So never put both primary and alternate copies in CFs in a single CEC. It's doable with dual CECs but maybe not a great use of CF memory. There are two chief advantages of CF checkpoint: performance in general (responsiveness) and performance balancing among CECs of widely different speeds (XCF tends to serialize accesses). If you choose to use CF for checkpoint in a single CEC, put *only* the primary in a structure. . . 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 Vernooij, Kees (ITOPT1) - KLM Sent: Monday, July 31, 2017 5:34 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: (External):Re: JES2 Checkpoint question I think I remember from the past, when we had CKPT in the CF, that only 1 of every 10 writes to the primary ckpt is done to the secondary. So having the secondary on dasd will cause minimal performance degradation, if that were a concern. Kees. > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On Behalf Of Carmen Vitullo > Sent: 31 July, 2017 14:24 > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: JES2 Checkpoint question > > That what I was thinking, according to the doc, and its not 100% clear > I can recover from a lost CKPT, so does that assume just one lost CKPT > while JES2 is up, or during a shutdown, there are so many different > recovery scenarios' but none that fit my situation. > It was my bad planning, putting both CKPT's in the CF's and not > planning this thru to the power down - POR lessons learned here. > thank again all > Carmen > > > - Original Message - > > From: "Kees Vernooij (ITOPT1) - KLM" <kees.verno...@klm.com> > To: IBM-MAIN@LISTSERV.UA.EDU > Sent: Monday, July 31, 2017 5:16:09 AM > Subject: Re: JES2 Checkpoint question > > I agree, that I can recover JES2 to use new checkpoints if the > originals are definitely gone, but that was not the case here. > What can I recover, when both checkpoints have been emptied by the POR? > > Kees. > > > -Original Message- > > From: IBM Mainframe Discussion List > > [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On > > Behalf Of Gerhard Adam > > Sent: 31 July, 2017 12:11 > > To: IBM-MAIN@LISTSERV.UA.EDU > > Subject: Re: JES2 Checkpoint question > > > > I disagree. The point of reconfiguration is also to recover from > > checkpoint loss. > > > > Sent from my iPhone > > > > > On Jul 31, 2017, at 3:00 AM, Vernooij, Kees (ITOPT1) - KLM > > <kees.verno...@klm.com> wrote: > > > > > > But still, if both checkpoints were in CF's, the POR cleared both > > > of > > them, so there is nothing to reconfigure. A COLD start would indeed > > be the fastest. > > > > > > Kees. > > > > > >> -Original Message- > > >> From: IBM Mainframe Discussion List [mailto:IBM- > m...@listserv.ua.edu] > > On > > >> Behalf Of Gerhard Adam > > >> Sent: 28 July, 2017 18:17 > > >> To: IBM-MAIN@LISTSERV.UA.EDU > > >> Subject: Re: JES2 Checkpoint question > > >> > > >> I wasn't sure if you were aware that you can make up a NEWCKPT > > >> dynamically and if it doesn't exist, JES2 will prompt you to > > >> create > > it. > > >> > > >> That way if you don't have an existing definition, you can still > get > > a > > >> new data set created and migrated to. > > >> > > >> > > >> > > >> -Original Message- > > >> From: IBM Mainframe Discussion List [mailto:IBM- > m...@listserv.ua.edu] > > On > > >> Behalf Of Carmen Vitullo > > >> Sent: Friday, July 28, 2017 7:15 AM > > >> To: IBM-MAIN@LISTSERV.UA.EDU > > >> Subject: Re: JES2 Checkpoint question > > >> > > >> thank you > > >> I decided to do a cold start due to the fact while an attempt to > move > > to >
Re: JES2 Checkpoint question
I think I remember from the past, when we had CKPT in the CF, that only 1 of every 10 writes to the primary ckpt is done to the secondary. So having the secondary on dasd will cause minimal performance degradation, if that were a concern. Kees. > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Carmen Vitullo > Sent: 31 July, 2017 14:24 > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: JES2 Checkpoint question > > That what I was thinking, according to the doc, and its not 100% clear I > can recover from a lost CKPT, so does that assume just one lost CKPT > while JES2 is up, or during a shutdown, there are so many different > recovery scenarios' but none that fit my situation. > It was my bad planning, putting both CKPT's in the CF's and not planning > this thru to the power down - POR > lessons learned here. > thank again all > Carmen > > > - Original Message - > > From: "Kees Vernooij (ITOPT1) - KLM" <kees.verno...@klm.com> > To: IBM-MAIN@LISTSERV.UA.EDU > Sent: Monday, July 31, 2017 5:16:09 AM > Subject: Re: JES2 Checkpoint question > > I agree, that I can recover JES2 to use new checkpoints if the originals > are definitely gone, but that was not the case here. > What can I recover, when both checkpoints have been emptied by the POR? > > Kees. > > > -Original Message- > > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On > > Behalf Of Gerhard Adam > > Sent: 31 July, 2017 12:11 > > To: IBM-MAIN@LISTSERV.UA.EDU > > Subject: Re: JES2 Checkpoint question > > > > I disagree. The point of reconfiguration is also to recover from > > checkpoint loss. > > > > Sent from my iPhone > > > > > On Jul 31, 2017, at 3:00 AM, Vernooij, Kees (ITOPT1) - KLM > > <kees.verno...@klm.com> wrote: > > > > > > But still, if both checkpoints were in CF's, the POR cleared both of > > them, so there is nothing to reconfigure. A COLD start would indeed be > > the fastest. > > > > > > Kees. > > > > > >> -Original Message- > > >> From: IBM Mainframe Discussion List [mailto:IBM- > m...@listserv.ua.edu] > > On > > >> Behalf Of Gerhard Adam > > >> Sent: 28 July, 2017 18:17 > > >> To: IBM-MAIN@LISTSERV.UA.EDU > > >> Subject: Re: JES2 Checkpoint question > > >> > > >> I wasn't sure if you were aware that you can make up a NEWCKPT > > >> dynamically and if it doesn't exist, JES2 will prompt you to create > > it. > > >> > > >> That way if you don't have an existing definition, you can still > get > > a > > >> new data set created and migrated to. > > >> > > >> > > >> > > >> -Original Message- > > >> From: IBM Mainframe Discussion List [mailto:IBM- > m...@listserv.ua.edu] > > On > > >> Behalf Of Carmen Vitullo > > >> Sent: Friday, July 28, 2017 7:15 AM > > >> To: IBM-MAIN@LISTSERV.UA.EDU > > >> Subject: Re: JES2 Checkpoint question > > >> > > >> thank you > > >> I decided to do a cold start due to the fact while an attempt to > move > > to > > >> NEWCKPRT1 or 2 during startup I received I/O errors on the CKPT > > files, > > >> due to time constrains on my downtime I had to get the systems back > > up. > > >> I've since read there are somethings I could have tried to recover, > > but > > >> at the timethere was no time. > > >> > > >> > > >> Carmen > > >> > > >> - Original Message - > > >> > > >> From: "Gerhard Adam" <gada...@charter.net> > > >> To: IBM-MAIN@LISTSERV.UA.EDU > > >> Sent: Friday, July 28, 2017 9:08:21 AM > > >> Subject: Re: JES2 Checkpoint question > > >> > > >> You shouldn't need both on DASD. However, I am curious as to why > you > > had > > >> to COLD start. > > >> > > >> > > >> > > >> -Original Message- > > >> From: IBM Mainframe Discussion List [mailto:IBM- > m...@listserv.ua.edu] > > On > > >> Behalf Of Carmen Vitullo > > >> Sent: Friday, July 28, 2017 6:55 AM > > >> To: IBM-MAIN@LISTSERV.UA.EDU > > >> Subject: JES2 Checkpoint question > > >> > > >> I've looked and looked at the Init and Tuning REF and Guide and I
Re: JES2 Checkpoint question
That what I was thinking, according to the doc, and its not 100% clear I can recover from a lost CKPT, so does that assume just one lost CKPT while JES2 is up, or during a shutdown, there are so many different recovery scenarios' but none that fit my situation. It was my bad planning, putting both CKPT's in the CF's and not planning this thru to the power down - POR lessons learned here. thank again all Carmen - Original Message - From: "Kees Vernooij (ITOPT1) - KLM" <kees.verno...@klm.com> To: IBM-MAIN@LISTSERV.UA.EDU Sent: Monday, July 31, 2017 5:16:09 AM Subject: Re: JES2 Checkpoint question I agree, that I can recover JES2 to use new checkpoints if the originals are definitely gone, but that was not the case here. What can I recover, when both checkpoints have been emptied by the POR? Kees. > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Gerhard Adam > Sent: 31 July, 2017 12:11 > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: JES2 Checkpoint question > > I disagree. The point of reconfiguration is also to recover from > checkpoint loss. > > Sent from my iPhone > > > On Jul 31, 2017, at 3:00 AM, Vernooij, Kees (ITOPT1) - KLM > <kees.verno...@klm.com> wrote: > > > > But still, if both checkpoints were in CF's, the POR cleared both of > them, so there is nothing to reconfigure. A COLD start would indeed be > the fastest. > > > > Kees. > > > >> -Original Message- > >> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On > >> Behalf Of Gerhard Adam > >> Sent: 28 July, 2017 18:17 > >> To: IBM-MAIN@LISTSERV.UA.EDU > >> Subject: Re: JES2 Checkpoint question > >> > >> I wasn't sure if you were aware that you can make up a NEWCKPT > >> dynamically and if it doesn't exist, JES2 will prompt you to create > it. > >> > >> That way if you don't have an existing definition, you can still get > a > >> new data set created and migrated to. > >> > >> > >> > >> -Original Message- > >> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On > >> Behalf Of Carmen Vitullo > >> Sent: Friday, July 28, 2017 7:15 AM > >> To: IBM-MAIN@LISTSERV.UA.EDU > >> Subject: Re: JES2 Checkpoint question > >> > >> thank you > >> I decided to do a cold start due to the fact while an attempt to move > to > >> NEWCKPRT1 or 2 during startup I received I/O errors on the CKPT > files, > >> due to time constrains on my downtime I had to get the systems back > up. > >> I've since read there are somethings I could have tried to recover, > but > >> at the timethere was no time. > >> > >> > >> Carmen > >> > >> - Original Message - > >> > >> From: "Gerhard Adam" <gada...@charter.net> > >> To: IBM-MAIN@LISTSERV.UA.EDU > >> Sent: Friday, July 28, 2017 9:08:21 AM > >> Subject: Re: JES2 Checkpoint question > >> > >> You shouldn't need both on DASD. However, I am curious as to why you > had > >> to COLD start. > >> > >> > >> > >> -Original Message- > >> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On > >> Behalf Of Carmen Vitullo > >> Sent: Friday, July 28, 2017 6:55 AM > >> To: IBM-MAIN@LISTSERV.UA.EDU > >> Subject: JES2 Checkpoint question > >> > >> I've looked and looked at the Init and Tuning REF and Guide and I > can't > >> seem to find an answer to my question, I'm hoping someone can provide > a > >> sanity check for me. > >> I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints > are > >> currently in a CF with mode=duplex and duplex=on. > >> my issue is both CF's are in the same CEC so a POR of the box for > maint > >> last month I lost all my prod spool data and was forced to perform a > >> JES2 cold start. I need to move CKPT1 to DASD and I want to leave > CKPT2 > >> in the CF, so my question is can I still run with mode=duplex and > >> duplex=on in that configuration, or do I need to have both CKPT's on > >> DASD. > >> Any insight or recommendations would be very helpful, thank you all > >> > >> - > - > >> For IBM-MAIN subs
Re: JES2 Checkpoint question
I agree, that I can recover JES2 to use new checkpoints if the originals are definitely gone, but that was not the case here. What can I recover, when both checkpoints have been emptied by the POR? Kees. > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Gerhard Adam > Sent: 31 July, 2017 12:11 > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: JES2 Checkpoint question > > I disagree. The point of reconfiguration is also to recover from > checkpoint loss. > > Sent from my iPhone > > > On Jul 31, 2017, at 3:00 AM, Vernooij, Kees (ITOPT1) - KLM > <kees.verno...@klm.com> wrote: > > > > But still, if both checkpoints were in CF's, the POR cleared both of > them, so there is nothing to reconfigure. A COLD start would indeed be > the fastest. > > > > Kees. > > > >> -Original Message- > >> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On > >> Behalf Of Gerhard Adam > >> Sent: 28 July, 2017 18:17 > >> To: IBM-MAIN@LISTSERV.UA.EDU > >> Subject: Re: JES2 Checkpoint question > >> > >> I wasn't sure if you were aware that you can make up a NEWCKPT > >> dynamically and if it doesn't exist, JES2 will prompt you to create > it. > >> > >> That way if you don't have an existing definition, you can still get > a > >> new data set created and migrated to. > >> > >> > >> > >> -Original Message- > >> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On > >> Behalf Of Carmen Vitullo > >> Sent: Friday, July 28, 2017 7:15 AM > >> To: IBM-MAIN@LISTSERV.UA.EDU > >> Subject: Re: JES2 Checkpoint question > >> > >> thank you > >> I decided to do a cold start due to the fact while an attempt to move > to > >> NEWCKPRT1 or 2 during startup I received I/O errors on the CKPT > files, > >> due to time constrains on my downtime I had to get the systems back > up. > >> I've since read there are somethings I could have tried to recover, > but > >> at the timethere was no time. > >> > >> > >> Carmen > >> > >> - Original Message - > >> > >> From: "Gerhard Adam" <gada...@charter.net> > >> To: IBM-MAIN@LISTSERV.UA.EDU > >> Sent: Friday, July 28, 2017 9:08:21 AM > >> Subject: Re: JES2 Checkpoint question > >> > >> You shouldn't need both on DASD. However, I am curious as to why you > had > >> to COLD start. > >> > >> > >> > >> -Original Message- > >> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On > >> Behalf Of Carmen Vitullo > >> Sent: Friday, July 28, 2017 6:55 AM > >> To: IBM-MAIN@LISTSERV.UA.EDU > >> Subject: JES2 Checkpoint question > >> > >> I've looked and looked at the Init and Tuning REF and Guide and I > can't > >> seem to find an answer to my question, I'm hoping someone can provide > a > >> sanity check for me. > >> I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints > are > >> currently in a CF with mode=duplex and duplex=on. > >> my issue is both CF's are in the same CEC so a POR of the box for > maint > >> last month I lost all my prod spool data and was forced to perform a > >> JES2 cold start. I need to move CKPT1 to DASD and I want to leave > CKPT2 > >> in the CF, so my question is can I still run with mode=duplex and > >> duplex=on in that configuration, or do I need to have both CKPT's on > >> DASD. > >> Any insight or recommendations would be very helpful, thank you all > >> > >> - > - > >> 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 > >> > >> > >> - > - > >> For IBM-MAIN subscribe / signoff / archive access instructions, > >> send email to lists...@listserv.ua.edu with the message: INFO IBM- > MAIN > >> > >> ---
Re: JES2 Checkpoint question
I disagree. The point of reconfiguration is also to recover from checkpoint loss. Sent from my iPhone > On Jul 31, 2017, at 3:00 AM, Vernooij, Kees (ITOPT1) - KLM > <kees.verno...@klm.com> wrote: > > But still, if both checkpoints were in CF's, the POR cleared both of them, so > there is nothing to reconfigure. A COLD start would indeed be the fastest. > > Kees. > >> -Original Message- >> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On >> Behalf Of Gerhard Adam >> Sent: 28 July, 2017 18:17 >> To: IBM-MAIN@LISTSERV.UA.EDU >> Subject: Re: JES2 Checkpoint question >> >> I wasn't sure if you were aware that you can make up a NEWCKPT >> dynamically and if it doesn't exist, JES2 will prompt you to create it. >> >> That way if you don't have an existing definition, you can still get a >> new data set created and migrated to. >> >> >> >> -Original Message- >> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On >> Behalf Of Carmen Vitullo >> Sent: Friday, July 28, 2017 7:15 AM >> To: IBM-MAIN@LISTSERV.UA.EDU >> Subject: Re: JES2 Checkpoint question >> >> thank you >> I decided to do a cold start due to the fact while an attempt to move to >> NEWCKPRT1 or 2 during startup I received I/O errors on the CKPT files, >> due to time constrains on my downtime I had to get the systems back up. >> I've since read there are somethings I could have tried to recover, but >> at the timethere was no time. >> >> >> Carmen >> >> - Original Message - >> >> From: "Gerhard Adam" <gada...@charter.net> >> To: IBM-MAIN@LISTSERV.UA.EDU >> Sent: Friday, July 28, 2017 9:08:21 AM >> Subject: Re: JES2 Checkpoint question >> >> You shouldn't need both on DASD. However, I am curious as to why you had >> to COLD start. >> >> >> >> -Original Message- >> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On >> Behalf Of Carmen Vitullo >> Sent: Friday, July 28, 2017 6:55 AM >> To: IBM-MAIN@LISTSERV.UA.EDU >> Subject: JES2 Checkpoint question >> >> I've looked and looked at the Init and Tuning REF and Guide and I can't >> seem to find an answer to my question, I'm hoping someone can provide a >> sanity check for me. >> I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints are >> currently in a CF with mode=duplex and duplex=on. >> my issue is both CF's are in the same CEC so a POR of the box for maint >> last month I lost all my prod spool data and was forced to perform a >> JES2 cold start. I need to move CKPT1 to DASD and I want to leave CKPT2 >> in the CF, so my question is can I still run with mode=duplex and >> duplex=on in that configuration, or do I need to have both CKPT's on >> DASD. >> Any insight or recommendations would be very helpful, thank you all >> >> -- >> 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 >> >> >> -- >> 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 > > For information, services and offers, please visit our web site: > http://www.klm.com. This e-mail and any attachment may contain confidential > and privileged material intended for the addressee only. If you are not the > addressee, you are notified that no part of the e-mail or any attachment may > be disclosed, copied or distributed, and that any other action related to > this e-mail or attachment is strictly prohibited, and may be unlawful. If you > have received this e-mail by error, please notify the sender immediately by > return e-mail, and delete this message. > > Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its > employees shall not be
Re: JES2 Checkpoint question
But still, if both checkpoints were in CF's, the POR cleared both of them, so there is nothing to reconfigure. A COLD start would indeed be the fastest. Kees. > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Gerhard Adam > Sent: 28 July, 2017 18:17 > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: JES2 Checkpoint question > > I wasn't sure if you were aware that you can make up a NEWCKPT > dynamically and if it doesn't exist, JES2 will prompt you to create it. > > That way if you don't have an existing definition, you can still get a > new data set created and migrated to. > > > > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Carmen Vitullo > Sent: Friday, July 28, 2017 7:15 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: JES2 Checkpoint question > > thank you > I decided to do a cold start due to the fact while an attempt to move to > NEWCKPRT1 or 2 during startup I received I/O errors on the CKPT files, > due to time constrains on my downtime I had to get the systems back up. > I've since read there are somethings I could have tried to recover, but > at the timethere was no time. > > > Carmen > > - Original Message - > > From: "Gerhard Adam" <gada...@charter.net> > To: IBM-MAIN@LISTSERV.UA.EDU > Sent: Friday, July 28, 2017 9:08:21 AM > Subject: Re: JES2 Checkpoint question > > You shouldn't need both on DASD. However, I am curious as to why you had > to COLD start. > > > > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Carmen Vitullo > Sent: Friday, July 28, 2017 6:55 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: JES2 Checkpoint question > > I've looked and looked at the Init and Tuning REF and Guide and I can't > seem to find an answer to my question, I'm hoping someone can provide a > sanity check for me. > I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints are > currently in a CF with mode=duplex and duplex=on. > my issue is both CF's are in the same CEC so a POR of the box for maint > last month I lost all my prod spool data and was forced to perform a > JES2 cold start. I need to move CKPT1 to DASD and I want to leave CKPT2 > in the CF, so my question is can I still run with mode=duplex and > duplex=on in that configuration, or do I need to have both CKPT's on > DASD. > Any insight or recommendations would be very helpful, thank you all > > -- > 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 > > > -- > 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 For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: EXTERNAL: JES2 Checkpoint question
Excellent idea also, there's a couple of recovery options for after I loose the CKPT that I'd be skeptical if they'd work, best to have a better plan prior to an outage :) I've moved my CKPT2 to DASD today with no issues, thanks Lizette and everyone here for their great help. Carmen - Original Message - From: "Lizette Koehler" <stars...@mindspring.com> To: IBM-MAIN@LISTSERV.UA.EDU Sent: Friday, July 28, 2017 1:24:35 PM Subject: Re: EXTERNAL: JES2 Checkpoint question So next time you are working on the CEC with the CF, you could use the RECONFIG to move the CKPT temporarily to DASD. Do what you need to do, then move it back. You do not always need to fill in all CKPT dataset info - once moved, you can leave CKPT2 empty till you are ready to go back. I think that was the only step that was missing when you updated the CEC box where both of your CKPT datasets were located. All that was needed was moving CKPT1 to dasd, do the change, then move CKPT1 back to CF Lizette > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Carmen Vitullo > Sent: Friday, July 28, 2017 10:41 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: EXTERNAL: JES2 Checkpoint question > > That's good to know Jerry, thank you. > shutdown was normal and successful, the POR of the box and the fact I had > both checkpoints in the CF's (both CF's on the same CEC) cause me to loose > spool data, well and the fact I didn't have the luxury of time to research my > alternatives during that shutdown weekend. > thanks again for the sanity check, Much appreciated ! > > > Carmen > > > - Original Message - > > From: "Jerry Whitteridge" <jerry.whitteri...@albertsons.com> > To: IBM-MAIN@LISTSERV.UA.EDU > Sent: Friday, July 28, 2017 11:32:06 AM > Subject: Re: EXTERNAL: JES2 Checkpoint question > > We run with CKPT1 in the CF and CKPT2 on DASD for DR recovery. You should > have no issues mixing. > > You certainly should not have lost your spool just because you shutdown - I'm > assuming cleanly > > Jerry Whitteridge > Manager Mainframe Systems & Storage > Albertsons - Safeway Inc. > 623 869 5523 > Corporate Tieline - 85523 > > If you feel in control > you just aren't going fast enough. > > > > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Carmen Vitullo > Sent: Friday, July 28, 2017 6:55 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: EXTERNAL: JES2 Checkpoint question > > I've looked and looked at the Init and Tuning REF and Guide and I can't seem > to find an answer to my question, I'm hoping someone can provide a sanity > check for me. > I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints are > currently in a CF with mode=duplex and duplex=on. > my issue is both CF's are in the same CEC so a POR of the box for maint last > month I lost all my prod spool data and was forced to perform a JES2 cold > start. I need to move CKPT1 to DASD and I want to leave CKPT2 in the CF, so > my question is can I still run with mode=duplex and duplex=on in that > configuration, or do I need to have both CKPT's on DASD. > Any insight or recommendations would be very helpful, thank you all > > -- > For IBM-MAIN subscribe / signoff / archive access instructions, send email to > lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > Warning: All e-mail sent to this address will be received by the corporate e- > mail system, and is subject to archival and review by someone other than the > recipient. This e-mail may contain proprietary information and is intended > only for the use of the intended recipient(s). If the reader of this message > is not the intended recipient(s), you are notified that you have received > this message in error and that any review, dissemination, distribution or > copying of this message is strictly prohibited. If you have received this > message in error, please notify the sender immediately. > -- 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: EXTERNAL: JES2 Checkpoint question
That's good to know Jerry, thank you. shutdown was normal and successful, the POR of the box and the fact I had both checkpoints in the CF's (both CF's on the same CEC) cause me to loose spool data, well and the fact I didn't have the luxury of time to research my alternatives during that shutdown weekend. thanks again for the sanity check, Much appreciated ! Carmen - Original Message - From: "Jerry Whitteridge" <jerry.whitteri...@albertsons.com> To: IBM-MAIN@LISTSERV.UA.EDU Sent: Friday, July 28, 2017 11:32:06 AM Subject: Re: EXTERNAL: JES2 Checkpoint question We run with CKPT1 in the CF and CKPT2 on DASD for DR recovery. You should have no issues mixing. You certainly should not have lost your spool just because you shutdown - I'm assuming cleanly Jerry Whitteridge Manager Mainframe Systems & Storage Albertsons - Safeway Inc. 623 869 5523 Corporate Tieline - 85523 If you feel in control you just aren't going fast enough. -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Carmen Vitullo Sent: Friday, July 28, 2017 6:55 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: EXTERNAL: JES2 Checkpoint question I've looked and looked at the Init and Tuning REF and Guide and I can't seem to find an answer to my question, I'm hoping someone can provide a sanity check for me. I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints are currently in a CF with mode=duplex and duplex=on. my issue is both CF's are in the same CEC so a POR of the box for maint last month I lost all my prod spool data and was forced to perform a JES2 cold start. I need to move CKPT1 to DASD and I want to leave CKPT2 in the CF, so my question is can I still run with mode=duplex and duplex=on in that configuration, or do I need to have both CKPT's on DASD. Any insight or recommendations would be very helpful, thank you all -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN Warning: All e-mail sent to this address will be received by the corporate e-mail system, and is subject to archival and review by someone other than the recipient. This e-mail may contain proprietary information and is intended only for the use of the intended recipient(s). If the reader of this message is not the intended recipient(s), you are notified that you have received this message in error and that any review, dissemination, distribution or copying of this message is strictly prohibited. If you have received this message in error, please notify the sender immediately. -- 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: EXTERNAL: JES2 Checkpoint question
We run with CKPT1 in the CF and CKPT2 on DASD for DR recovery. You should have no issues mixing. You certainly should not have lost your spool just because you shutdown - I'm assuming cleanly Jerry Whitteridge Manager Mainframe Systems & Storage Albertsons - Safeway Inc. 623 869 5523 Corporate Tieline - 85523 If you feel in control you just aren't going fast enough. -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Carmen Vitullo Sent: Friday, July 28, 2017 6:55 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: EXTERNAL: JES2 Checkpoint question I've looked and looked at the Init and Tuning REF and Guide and I can't seem to find an answer to my question, I'm hoping someone can provide a sanity check for me. I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints are currently in a CF with mode=duplex and duplex=on. my issue is both CF's are in the same CEC so a POR of the box for maint last month I lost all my prod spool data and was forced to perform a JES2 cold start. I need to move CKPT1 to DASD and I want to leave CKPT2 in the CF, so my question is can I still run with mode=duplex and duplex=on in that configuration, or do I need to have both CKPT's on DASD. Any insight or recommendations would be very helpful, thank you all -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN Warning: All e-mail sent to this address will be received by the corporate e-mail system, and is subject to archival and review by someone other than the recipient. This e-mail may contain proprietary information and is intended only for the use of the intended recipient(s). If the reader of this message is not the intended recipient(s), you are notified that you have received this message in error and that any review, dissemination, distribution or copying of this message is strictly prohibited. If you have received this message in error, please notify the sender immediately. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: JES2 Checkpoint question
I wasn't sure if you were aware that you can make up a NEWCKPT dynamically and if it doesn't exist, JES2 will prompt you to create it. That way if you don't have an existing definition, you can still get a new data set created and migrated to. -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Carmen Vitullo Sent: Friday, July 28, 2017 7:15 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: JES2 Checkpoint question thank you I decided to do a cold start due to the fact while an attempt to move to NEWCKPRT1 or 2 during startup I received I/O errors on the CKPT files, due to time constrains on my downtime I had to get the systems back up. I've since read there are somethings I could have tried to recover, but at the timethere was no time. Carmen - Original Message - From: "Gerhard Adam" <gada...@charter.net> To: IBM-MAIN@LISTSERV.UA.EDU Sent: Friday, July 28, 2017 9:08:21 AM Subject: Re: JES2 Checkpoint question You shouldn't need both on DASD. However, I am curious as to why you had to COLD start. -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Carmen Vitullo Sent: Friday, July 28, 2017 6:55 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: JES2 Checkpoint question I've looked and looked at the Init and Tuning REF and Guide and I can't seem to find an answer to my question, I'm hoping someone can provide a sanity check for me. I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints are currently in a CF with mode=duplex and duplex=on. my issue is both CF's are in the same CEC so a POR of the box for maint last month I lost all my prod spool data and was forced to perform a JES2 cold start. I need to move CKPT1 to DASD and I want to leave CKPT2 in the CF, so my question is can I still run with mode=duplex and duplex=on in that configuration, or do I need to have both CKPT's on DASD. Any insight or recommendations would be very helpful, thank you all -- 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 -- 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: JES2 Checkpoint question
Great, I've used the reconfig dialog in test and it worked great, thanks again Lizette ! Carmen - Original Message - From: "Lizette Koehler" <stars...@mindspring.com> To: IBM-MAIN@LISTSERV.UA.EDU Sent: Friday, July 28, 2017 9:32:35 AM Subject: Re: JES2 Checkpoint question Correct. The RECONFIG dialog is very good. You just need to know where you are going to. It is a lot of steps. So review each message as it occurs during the process. Until you enter that last "go for it" to JES2 there does not seem to be any impacts. Lizette > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Carmen Vitullo > Sent: Friday, July 28, 2017 7:25 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: JES2 Checkpoint question > > Finally received your reposne :) > so using the JES CKPT dialog to move CKPT2 from the structure to DASD is a > non issue? just wanted to be sure using $T CKPTDEF,RECONFIG=Y then using the > option to reassign CKPT2 from STRNAME= to DATASETNAME= I've defined? > thanks again > > > Carmen > > - Original Message - > > From: "Lizette Koehler" <stars...@mindspring.com> > To: IBM-MAIN@LISTSERV.UA.EDU > Sent: Friday, July 28, 2017 9:13:14 AM > Subject: Re: JES2 Checkpoint question > > Think IBM recommendation is for CKPT1 to be in CF and CKPT2 on DASD. > > That way if either fails, you should be okay. > > Side Note: Moving the CKPT from CF to DASD or from DASD to another DASD is > very easy. We have done ours during the day time. The process is very quick. > > There is a SHARE presentation from 2004: JES2 Checkpoint Reconfiguration > > From the z/OS JES2 Initialization and Tuning Guide SA32-0991-00 > > In general, to prevent a total loss of the job queue, you should use 2 > checkpoints, specify CKPT DUPLEX=ON on all members, and place CKPT2 on a > DASD. > > > > Lizette > > > > -Original Message- > > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > > On Behalf Of Carmen Vitullo > > Sent: Friday, July 28, 2017 6:55 AM > > To: IBM-MAIN@LISTSERV.UA.EDU > > Subject: JES2 Checkpoint question > > > > I've looked and looked at the Init and Tuning REF and Guide and I > > can't seem to find an answer to my question, I'm hoping someone can > > provide a sanity check for me. > > I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints are > > currently in a CF with mode=duplex and duplex=on. > > my issue is both CF's are in the same CEC so a POR of the box for > > maint last month I lost all my prod spool data and was forced to > > perform a JES2 cold start. I need to move CKPT1 to DASD and I want to > > leave CKPT2 in the CF, so my question is can I still run with > > mode=duplex and duplex=on in that configuration, or do I need to have both > CKPT's on DASD. > > Any insight or recommendations would be very helpful, thank you all > > > -- 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: JES2 Checkpoint question
Great, I've used the reconfig dialog in test and it worked great, thanks again Lizette ! Carmen -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: JES2 Checkpoint question
Correct. The RECONFIG dialog is very good. You just need to know where you are going to. It is a lot of steps. So review each message as it occurs during the process. Until you enter that last "go for it" to JES2 there does not seem to be any impacts. Lizette > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Carmen Vitullo > Sent: Friday, July 28, 2017 7:25 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: JES2 Checkpoint question > > Finally received your reposne :) > so using the JES CKPT dialog to move CKPT2 from the structure to DASD is a > non issue? just wanted to be sure using $T CKPTDEF,RECONFIG=Y then using the > option to reassign CKPT2 from STRNAME= to DATASETNAME= I've defined? > thanks again > > > Carmen > > - Original Message - > > From: "Lizette Koehler" <stars...@mindspring.com> > To: IBM-MAIN@LISTSERV.UA.EDU > Sent: Friday, July 28, 2017 9:13:14 AM > Subject: Re: JES2 Checkpoint question > > Think IBM recommendation is for CKPT1 to be in CF and CKPT2 on DASD. > > That way if either fails, you should be okay. > > Side Note: Moving the CKPT from CF to DASD or from DASD to another DASD is > very easy. We have done ours during the day time. The process is very quick. > > There is a SHARE presentation from 2004: JES2 Checkpoint Reconfiguration > > From the z/OS JES2 Initialization and Tuning Guide SA32-0991-00 > > In general, to prevent a total loss of the job queue, you should use 2 > checkpoints, specify CKPT DUPLEX=ON on all members, and place CKPT2 on a > DASD. > > > > Lizette > > > > -Original Message- > > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > > On Behalf Of Carmen Vitullo > > Sent: Friday, July 28, 2017 6:55 AM > > To: IBM-MAIN@LISTSERV.UA.EDU > > Subject: JES2 Checkpoint question > > > > I've looked and looked at the Init and Tuning REF and Guide and I > > can't seem to find an answer to my question, I'm hoping someone can > > provide a sanity check for me. > > I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints are > > currently in a CF with mode=duplex and duplex=on. > > my issue is both CF's are in the same CEC so a POR of the box for > > maint last month I lost all my prod spool data and was forced to > > perform a JES2 cold start. I need to move CKPT1 to DASD and I want to > > leave CKPT2 in the CF, so my question is can I still run with > > mode=duplex and duplex=on in that configuration, or do I need to have both > CKPT's on DASD. > > Any insight or recommendations would be very helpful, thank you all > > > -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: JES2 Checkpoint question
Answering you Lizzette via myself if you don't mind, your response came to my work email and not this account :( you Stated; Think IBM recommendation is for CKPT1 to be in CF and CKPT2 on DASD. That way if either fails, you should be okay. Side Note: Moving the CKPT from CF to DASD or from DASD to another DASD is very easy. We have done ours during the day time. The process is very quick. There is a SHARE presentation from 2004: JES2 Checkpoint Reconfiguration >From the z/OS JES2 Initialization and Tuning Guide SA32-0991-00 In general, to prevent a total loss of the job queue, you should use 2 checkpoints, specify CKPT DUPLEX=ON on all members, and place CKPT2 on a DASD. Thank you so much for the quick answer, I was concerned about moving CKPT2 to DASD and leaving CKPT1 in the CF because we have a DR scheduled this month (local system) and I will be IPL'd both systems on a new CEC and I need to maintain the spool integrity. I'll check the Share presentation you provided, thanks, and thanks for the sanity check with the duplex setting. Carmen - Original Message - From: "Carmen Vitullo" <cvitu...@hughes.net> To: IBM-MAIN@LISTSERV.UA.EDU Sent: Friday, July 28, 2017 9:14:32 AM Subject: Re: JES2 Checkpoint question thank you I decided to do a cold start due to the fact while an attempt to move to NEWCKPRT1 or 2 during startup I received I/O errors on the CKPT files, due to time constrains on my downtime I had to get the systems back up. I've since read there are somethings I could have tried to recover, but at the timethere was no time. Carmen - Original Message - From: "Gerhard Adam" <gada...@charter.net> To: IBM-MAIN@LISTSERV.UA.EDU Sent: Friday, July 28, 2017 9:08:21 AM Subject: Re: JES2 Checkpoint question You shouldn't need both on DASD. However, I am curious as to why you had to COLD start. -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Carmen Vitullo Sent: Friday, July 28, 2017 6:55 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: JES2 Checkpoint question I've looked and looked at the Init and Tuning REF and Guide and I can't seem to find an answer to my question, I'm hoping someone can provide a sanity check for me. I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints are currently in a CF with mode=duplex and duplex=on. my issue is both CF's are in the same CEC so a POR of the box for maint last month I lost all my prod spool data and was forced to perform a JES2 cold start. I need to move CKPT1 to DASD and I want to leave CKPT2 in the CF, so my question is can I still run with mode=duplex and duplex=on in that configuration, or do I need to have both CKPT's on DASD. Any insight or recommendations would be very helpful, thank you all -- 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 -- 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: JES2 Checkpoint question
Finally received your reposne :) so using the JES CKPT dialog to move CKPT2 from the structure to DASD is a non issue? just wanted to be sure using $T CKPTDEF,RECONFIG=Y then using the option to reassign CKPT2 from STRNAME= to DATASETNAME= I've defined? thanks again Carmen - Original Message - From: "Lizette Koehler" <stars...@mindspring.com> To: IBM-MAIN@LISTSERV.UA.EDU Sent: Friday, July 28, 2017 9:13:14 AM Subject: Re: JES2 Checkpoint question Think IBM recommendation is for CKPT1 to be in CF and CKPT2 on DASD. That way if either fails, you should be okay. Side Note: Moving the CKPT from CF to DASD or from DASD to another DASD is very easy. We have done ours during the day time. The process is very quick. There is a SHARE presentation from 2004: JES2 Checkpoint Reconfiguration >From the z/OS JES2 Initialization and Tuning Guide SA32-0991-00 In general, to prevent a total loss of the job queue, you should use 2 checkpoints, specify CKPT DUPLEX=ON on all members, and place CKPT2 on a DASD. Lizette > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Carmen Vitullo > Sent: Friday, July 28, 2017 6:55 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: JES2 Checkpoint question > > I've looked and looked at the Init and Tuning REF and Guide and I can't seem > to find an answer to my question, I'm hoping someone can provide a sanity > check for me. > I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints are > currently in a CF with mode=duplex and duplex=on. > my issue is both CF's are in the same CEC so a POR of the box for maint last > month I lost all my prod spool data and was forced to perform a JES2 cold > start. I need to move CKPT1 to DASD and I want to leave CKPT2 in the CF, so > my question is can I still run with mode=duplex and duplex=on in that > configuration, or do I need to have both CKPT's on DASD. > Any insight or recommendations would be very helpful, thank you all > -- 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: JES2 Checkpoint question
thank you I decided to do a cold start due to the fact while an attempt to move to NEWCKPRT1 or 2 during startup I received I/O errors on the CKPT files, due to time constrains on my downtime I had to get the systems back up. I've since read there are somethings I could have tried to recover, but at the timethere was no time. Carmen - Original Message - From: "Gerhard Adam" <gada...@charter.net> To: IBM-MAIN@LISTSERV.UA.EDU Sent: Friday, July 28, 2017 9:08:21 AM Subject: Re: JES2 Checkpoint question You shouldn't need both on DASD. However, I am curious as to why you had to COLD start. -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Carmen Vitullo Sent: Friday, July 28, 2017 6:55 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: JES2 Checkpoint question I've looked and looked at the Init and Tuning REF and Guide and I can't seem to find an answer to my question, I'm hoping someone can provide a sanity check for me. I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints are currently in a CF with mode=duplex and duplex=on. my issue is both CF's are in the same CEC so a POR of the box for maint last month I lost all my prod spool data and was forced to perform a JES2 cold start. I need to move CKPT1 to DASD and I want to leave CKPT2 in the CF, so my question is can I still run with mode=duplex and duplex=on in that configuration, or do I need to have both CKPT's on DASD. Any insight or recommendations would be very helpful, thank you all -- 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 -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: JES2 Checkpoint question
Think IBM recommendation is for CKPT1 to be in CF and CKPT2 on DASD. That way if either fails, you should be okay. Side Note: Moving the CKPT from CF to DASD or from DASD to another DASD is very easy. We have done ours during the day time. The process is very quick. There is a SHARE presentation from 2004: JES2 Checkpoint Reconfiguration >From the z/OS JES2 Initialization and Tuning Guide SA32-0991-00 In general, to prevent a total loss of the job queue, you should use 2 checkpoints, specify CKPT DUPLEX=ON on all members, and place CKPT2 on a DASD. Lizette > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Carmen Vitullo > Sent: Friday, July 28, 2017 6:55 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: JES2 Checkpoint question > > I've looked and looked at the Init and Tuning REF and Guide and I can't seem > to find an answer to my question, I'm hoping someone can provide a sanity > check for me. > I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints are > currently in a CF with mode=duplex and duplex=on. > my issue is both CF's are in the same CEC so a POR of the box for maint last > month I lost all my prod spool data and was forced to perform a JES2 cold > start. I need to move CKPT1 to DASD and I want to leave CKPT2 in the CF, so > my question is can I still run with mode=duplex and duplex=on in that > configuration, or do I need to have both CKPT's on DASD. > Any insight or recommendations would be very helpful, thank you all > -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: JES2 Checkpoint question
You shouldn't need both on DASD. However, I am curious as to why you had to COLD start. -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Carmen Vitullo Sent: Friday, July 28, 2017 6:55 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: JES2 Checkpoint question I've looked and looked at the Init and Tuning REF and Guide and I can't seem to find an answer to my question, I'm hoping someone can provide a sanity check for me. I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints are currently in a CF with mode=duplex and duplex=on. my issue is both CF's are in the same CEC so a POR of the box for maint last month I lost all my prod spool data and was forced to perform a JES2 cold start. I need to move CKPT1 to DASD and I want to leave CKPT2 in the CF, so my question is can I still run with mode=duplex and duplex=on in that configuration, or do I need to have both CKPT's on DASD. Any insight or recommendations would be very helpful, thank you all -- 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
JES2 Checkpoint question
I've looked and looked at the Init and Tuning REF and Guide and I can't seem to find an answer to my question, I'm hoping someone can provide a sanity check for me. I have a 2 system JES2 MAS both running z/OS 2.1, both checkpoints are currently in a CF with mode=duplex and duplex=on. my issue is both CF's are in the same CEC so a POR of the box for maint last month I lost all my prod spool data and was forced to perform a JES2 cold start. I need to move CKPT1 to DASD and I want to leave CKPT2 in the CF, so my question is can I still run with mode=duplex and duplex=on in that configuration, or do I need to have both CKPT's on DASD. Any insight or recommendations would be very helpful, thank you all -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
