Re: GRS/MIM contention problem
Ulrich I agree with you - the test system was in the sysplex before we transitioned to another outsourcer; their (our) policy is not to have test systems in the main plex :) I have found the problem - exit ISGNQXIT was inadvertently added to the system causing GRS/MIM no end of confusion. Regards Paul -Original Message- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Ulrich Krueger Sent: 08 May 2008 18:21 To: IBM-MAIN@BAMA.UA.EDU Subject: Re: GRS/MIM contention problem Paul, IMHO, your Test system should fully participate in your GRS star and MIM - configuration, since you said that you are sharing all DASD (and tape drives, I suspect). This should prevent those ENQ issues that you are seeing. And I do hope, that MIM is only used for allocation control of shared tape drives (and not also processing ENQs). I've been running a Prod. + Test environment like this for years and had no issues. Of course, one _must_ take care when IPLing the Test system, to correctly connect it to the GRS and MIM-plex and to issue the proper commands to disconnect when shutting down the Test system. Not doing this right will make the phones ring! Regards, Ulrich Krueger ___ Atos Origin and Atos Consulting are trading names used by the Atos Origin group. The following trading entities are registered in England and Wales: Atos Origin IT Services UK Limited (registered number 01245534) and Atos Consulting Limited (registered number 04312380). The registered office for each is at 4 Triton Square, Regents Place, London, NW1 3HG. This e-mail and the documents attached are confidential and intended solely for the addressee, and may contain confidential or privileged information. If you receive this e-mail in error, you are not authorised to copy, disclose, use or retain it. Please notify the sender immediately and delete this email from your systems. As emails may be intercepted, amended or lost, they are not secure. Atos Origin therefore can accept no liability for any errors or their content. Although Atos Origin endeavours to maintain a virus-free network, we do not warrant that this transmission is virus-free and can accept no liability for any damages resulting from any virus transmitted. The risks are deemed to be accepted by everyone who communicates with Atos Origin by email. ___ -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
GRS/MIM contention problem
Good day I am struggling with a problem and would appreciate suggestions. Customer has 3 systems, 2 production in a sysplex ( with several other customer systems ) - GRS STAR and MIM, shared JES. Other system is a test system in its own monoplex, in the same MIMPLEX as the other two systems; GRS=NONE, GRSRNL=EXCLUDE, GRSCNF=00, in its own JES MAS. All DASD is shared between the 3 systems. When I first IPL the test system its ok then I start seeing this : - Logger offload delays - Enqueues on SYSIGGV2/catalog.name - Enqueues on ARCENQG/ARCMCDS - Enqueues on SYSZRAC2/racf.database Also had a job needing a tape issue IECTMS9 then wait for an hour before recognising the tape ( Virtual tape in 3592 silo ) - only sprang into life when test system was shut. Tired after a long day of looking and finding nothing so any help welcome. Its IPL'ed OK before ... only change now is a bit of maintenance to CA-View... Thanks Paul Beesley Mainframe and AS400 support Managed Operations Atos Origin Direct: +44 (0)1202 542489 Mobile: +44 (0)7890 723369 Victoria House Bournemouth BH1 2NF [EMAIL PROTECTED] ___ Atos Origin and Atos Consulting are trading names used by the Atos Origin group. The following trading entities are registered in England and Wales: Atos Origin IT Services UK Limited (registered number 01245534) and Atos Consulting Limited (registered number 04312380). The registered office for each is at 4 Triton Square, Regents Place, London, NW1 3HG. This e-mail and the documents attached are confidential and intended solely for the addressee, and may contain confidential or privileged information. If you receive this e-mail in error, you are not authorised to copy, disclose, use or retain it. Please notify the sender immediately and delete this email from your systems. As emails may be intercepted, amended or lost, they are not secure. Atos Origin therefore can accept no liability for any errors or their content. Although Atos Origin endeavours to maintain a virus-free network, we do not warrant that this transmission is virus-free and can accept no liability for any damages resulting from any virus transmitted. The risks are deemed to be accepted by everyone who communicates with Atos Origin by email. ___ -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: GRS/MIM contention problem
Paul, IMHO, your Test system should fully participate in your GRS star and MIM - configuration, since you said that you are sharing all DASD (and tape drives, I suspect). This should prevent those ENQ issues that you are seeing. And I do hope, that MIM is only used for allocation control of shared tape drives (and not also processing ENQs). I've been running a Prod. + Test environment like this for years and had no issues. Of course, one _must_ take care when IPLing the Test system, to correctly connect it to the GRS and MIM-plex and to issue the proper commands to disconnect when shutting down the Test system. Not doing this right will make the phones ring! Regards, Ulrich Krueger -Original Message- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Beesley, Paul Sent: Thursday, May 08, 2008 10:02 To: IBM-MAIN@BAMA.UA.EDU Subject: GRS/MIM contention problem Good day I am struggling with a problem and would appreciate suggestions. Customer has 3 systems, 2 production in a sysplex ( with several other customer systems ) - GRS STAR and MIM, shared JES. Other system is a test system in its own monoplex, in the same MIMPLEX as the other two systems; GRS=NONE, GRSRNL=EXCLUDE, GRSCNF=00, in its own JES MAS. All DASD is shared between the 3 systems. When I first IPL the test system its ok then I start seeing this : - Logger offload delays - Enqueues on SYSIGGV2/catalog.name - Enqueues on ARCENQG/ARCMCDS - Enqueues on SYSZRAC2/racf.database Also had a job needing a tape issue IECTMS9 then wait for an hour before recognising the tape ( Virtual tape in 3592 silo ) - only sprang into life when test system was shut. Tired after a long day of looking and finding nothing so any help welcome. Its IPL'ed OK before ... only change now is a bit of maintenance to CA-View... Thanks Paul Beesley Mainframe and AS400 support Managed Operations Atos Origin Direct: +44 (0)1202 542489 Mobile: +44 (0)7890 723369 Victoria House Bournemouth BH1 2NF [EMAIL PROTECTED] ___ Atos Origin and Atos Consulting are trading names used by the Atos Origin group. The following trading entities are registered in England and Wales: Atos Origin IT Services UK Limited (registered number 01245534) and Atos Consulting Limited (registered number 04312380). The registered office for each is at 4 Triton Square, Regents Place, London, NW1 3HG. This e-mail and the documents attached are confidential and intended solely for the addressee, and may contain confidential or privileged information. If you receive this e-mail in error, you are not authorised to copy, disclose, use or retain it. Please notify the sender immediately and delete this email from your systems. As emails may be intercepted, amended or lost, they are not secure. Atos Origin therefore can accept no liability for any errors or their content. Although Atos Origin endeavours to maintain a virus-free network, we do not warrant that this transmission is virus-free and can accept no liability for any damages resulting from any virus transmitted. The risks are deemed to be accepted by everyone who communicates with Atos Origin by email. ___ -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] 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 [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
