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| Migrating MQ v1.2 to v5.2 on os390 - moving system queues |
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| alan.turnbull |
 Posted: Mon Apr 29, 2002 4:28 pm Post subject: |
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Novice
Joined: 28 Apr 2002
Posts: 11
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Hi
We are migrating from mqseries v1.2 to v5.2 on os390. For v5.2 IBM recommends not having system queues on page set 00, but for v1.2 by default they are defined on page set 00. I want to follow the recommendation and move the queues from pageset 00 before the migration - but am not sure how to do it.
"Alter storage class" command will succeed only if all the MQSeries queues that
reference the storage class are empty and closed - this seems a bit of a long shot particularly the requirement that they are closed. But I plan to try it first and will put the ALTER command into the CSQINP2 to run at start up.
First i have to get the system queues empty before i shut down the queue manager. The ones im concerned about are ...
System.admin.*.event - i figure i can empty these and then set put(inhibit) on
SYSTEM.CSQOREXX.B3DBA7743B7A5501 - i have lots like this, can i safely delete them??
SYSTEM.CHANNEL.SYNCQ - if i stop the channel initiator can i empty this one? Whats the effect on other queue managers that talk to this one, would i just need to reset the channel sequence numbers??
Any suggestions are most welcome
thanks for reading this .....alan
_________________
Alan Turnbull
Senior Developer
IITS
alan.turnbull@qbe.com.au |
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| blowbeat |
| Posted: Mon Apr 29, 2002 10:58 pm Post subject: |
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Apprentice
Joined: 02 Apr 2002
Posts: 49
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Hi,
Regarding the CSQOREXX queues. They can be deleted, unless actually in use. Maybe you'd want to check out SupportPac MO11 MQSeries for OS/390 - Deleting orphaned permanent dynamic queues.
Theoretically you should be able to unload / reload a queue using the CSQUTIL COPY, EMPTY & LOAD functions. I have not tried this with the SYSTEM queues (yet).
Cheers, Jan.
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| oz1ccg |
| Posted: Tue Apr 30, 2002 2:07 am Post subject: |
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Yatiri
Joined: 10 Feb 2002
Posts: 628
Location: Denmark
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As far as I rememeber, IBM told us on version 2.1 to move form PSID=00..
The way I archive it was creating a new storage class, and then something like this using CSQUTIL:
| Code: |
//SYSIN DD *
COMMAND DDNAME(PUTDIS)
COPY QUEUE(SYSTEM.CHANNEL.SYNCQ) DDNAME(OUTPUT)
COMMAND DDNAME(DEFTEMP)
LOAD QUEUE(SYSTEM.CHANNEL.SYNCQ) DDNAME(OUTPUT)
/*
//PUTDIS DD *
ALTER QL(SYSTEM.CHANNEL.SYNCQ) GET(ENABLED) PUT(ENABLED)
DELETE QL(MIP1.TEST.T_Q) PURGE
DEFINE QL(MIP1.TEST.T_Q) LIKE(SYSTEM.CHANNEL.SYNCQ)
ALTER QL(SYSTEM.CHANNEL.SYNCQ) PUT(DISABLED)
/*
//DEFTEMP DD *
ALTER QL(SYSTEM.CHANNEL.SYNCQ) GET(DISABLED)
DELETE QL(SYSTEM.CHANNEL.SYNCQ) PURGE
DEFINE QL(SYSTEM.CHANNEL.SYNCQ) LIKE(MIP1.TEST.T_Q) +
STGCLASS(SYSTEM02)
/*
//* DELETE QL(MIP1.TEST.T_Q)
//*
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What all this does is first create a new queue to keep the attributes of the original queue, and the disable put on that queue...
after that copy it to a dataset,
then delete the original queue, and create it agian in the new STGCLASS,
hereafter reload it, and you're back in business.
It's VERY important to keep the CHIN closed under this task, because it holds a some of the queues... when you have moved filled queues to a new STGCLASS, you can change the STGCLASS(SYSTEM) in CSQINP1 to lets say 02 and restart the queue manager and then the command queue and other qmgr opened queues (SYSTEM.COMMAND...) will automaticly move to the desired STGCLASS....
That was the way I did it years ago, using a small application to move queues between stgclasses. I alse normally have a special PSID just for this purpose and for on-the-fly queue creation... so I don't have to stop the queue managers.
I hope this might give you some ideas on how to do it.....
_________________
Best regards
Jørgen Pedersen
IBM Certified MQSeries Specialist
IBM Certified MQSeries Solutions Expert
[ This Message was edited by: oz1ccg on 2002-04-30 03:08 ] |
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| alan.turnbull |
| Posted: Thu May 02, 2002 9:23 pm Post subject: |
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Novice
Joined: 28 Apr 2002
Posts: 11
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Hi Jan and Jørgen ... thanks very much for your helpful replies, the information was very useful in showing me how to do it ...... thanks again alan
[ This Message was edited by: alan.turnbull on 2002-05-02 22:24 ] |
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