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| Queue Sharing Group & CICS TS 3.2 |
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| bay hoe san |
 Posted: Sun Feb 27, 2011 7:14 am Post subject: Queue Sharing Group & CICS TS 3.2 |
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Centurion
Joined: 27 Nov 2006
Posts: 117
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Hello,
1. I have 2 LPARs namely L1 and L2 in a plex. In L1, I have 1 CICS i.e. CICS1, 2 qmgrs QM1 and QM2. In L2, I have 1 CICS i.e. CICS2 2 qmgrs, i.e.g QM3 and QM4.
L1 - CICS1, QM1 & QM2,
L2 - CICS2, QM3 & QM4
QM1, 2, 3 & 4 are in QSG i.e. QSG1.
When QM1 & QM2 in L1 is down, can CICS still put msgs to shared queues and msgs get pick up by QM3 or QM4?
2. In CICS TS 3.2, where or what parameters can I set so that a CICS region is being connected to a QSG?
Pls advise. Thanks.
.Hoe San. |
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| exerk |
| Posted: Sun Feb 27, 2011 8:31 am Post subject: Re: Queue Sharing Group & CICS TS 3.2 |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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| bay hoe san wrote: |
| In CICS TS 3.2, where or what parameters can I set so that a CICS region is being connected to a QSG? |
I don't think you can unless you're at CICS TS 4.1. The CICS TS 3.2 Info Centre states in regard to using the CICS-WebSphere MQ Adapter that "...a single CICS address space can connect to only one queue manager at a time...", and if using the CICS-WebSphere MQ Bridge although it doesn't explicitly state the same, I can't imagine it's any different.
Moving this to the Mainframe and CICS forum...
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It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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| bruce2359 |
| Posted: Sun Feb 27, 2011 9:03 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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| Quote: |
| where or what parameters can I set so that a CICS region is being connected to a QSG? |
A cics region can connect to either a qmgr or a queue-sharing group.
Nothing is simple in WMQ for z/OS. Contact your MVS systems programmer, or a more experienced WMQ for z/OS system administrator.
How to set up and operate a queue-sharing group is documented in the WMQ for z/OS System Setup manual, and the WMQ for z/OS System Administration manual.
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I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| exerk |
| Posted: Sun Feb 27, 2011 9:13 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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| bruce2359 wrote: |
| ...A cics region can connect to either a qmgr or a queue-sharing group... |
I'm still pretty sure that's CICS TS version dependent 
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It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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| fjb_saper |
| Posted: Sun Feb 27, 2011 11:03 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| Quote: |
| When QM1 & QM2 in L1 is down, can CICS still put msgs to shared queues and msgs get pick up by QM3 or QM4? |
Somebody correct me... but I don't think it works that way.
AFAIK you access the queue sharing group through the qmgr CICS is connected to. So if for whatever reason say L1 is connected to QM1 and some queues are shared in the QSG with L2->QM2, then if QM1 is down, access to the shared queues in L1 is gone too...
Have fun 
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| exerk |
| Posted: Sun Feb 27, 2011 3:23 pm Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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From the CICS TS 4.1 Info Centre: "...You can now specify a WebSphere® MQ queue-sharing group for the CICS-WebSphere MQ connection, so CICS® uses any eligible queue manager in the group when it reconnects to WebSphere MQ, rather than waiting for a single queue manager..."
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It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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| fjb_saper |
| Posted: Sun Feb 27, 2011 3:44 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Thanks for the precision exerc. I did feel like I was missing something...
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| exerk |
| Posted: Sun Feb 27, 2011 11:12 pm Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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I suspect though that in cases like that of bay hoe san, even if at CICS TS 4.1 with only one queue manager in each LPAR, that reconnection to a queue manager on another LPAR is not possible - I'll confirm that (or not) when my friendly CICS expert is available.
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