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MQSeries.net Forum Index » Mainframe, CICS, TXSeries » CICS V4.2 and QSG's

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GFORCE
PostPosted: Thu Mar 20, 2014 8:14 am    Post subject: CICS V4.2 and QSG's Reply with quote

Voyager

Joined: 16 Jun 2003
Posts: 78
Location: WISCONSIN

I have a question, does CICS4.2 with MQCONN set to connect to a QSG need to have WMQ on the same LPAR?
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JosephGramig
PostPosted: Thu Mar 20, 2014 9:24 am    Post subject: Reply with quote

Grand Master

Joined: 09 Feb 2006
Posts: 1230
Location: Gold Coast of Florida, USA

Well, there is no MQ Client for z!

Yes, it must connect to a Qmgr on the same LPAR.
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GFORCE
PostPosted: Thu Mar 20, 2014 10:10 am    Post subject: CICS V4.2 and QSG's Reply with quote

Voyager

Joined: 16 Jun 2003
Posts: 78
Location: WISCONSIN

There is client for z\OS just expensive to run. I am confused as if the CICS AOR has a connection to the QSG with the MQCONN, then how is it going to connect to the QMGR that is on the same LPAR? I might be getting senile, but I am having the hardest time wrapping my mind around this.
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bruce2359
PostPosted: Thu Mar 20, 2014 10:35 am    Post subject: Reply with quote

Poobah

Joined: 05 Jan 2008
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Location: US: west coast, almost. Otherwise, enroute.

The CKQC CICS transaction starts the CICS-MQ adapter. CKQC panels allow you to identify the qmgr name. The adapter MQCONNects to the named qmgr. MQCONN calls in a CICS application are ignored.
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JosephGramig
PostPosted: Thu Mar 20, 2014 12:12 pm    Post subject: Re: CICS V4.2 and QSG's Reply with quote

Grand Master

Joined: 09 Feb 2006
Posts: 1230
Location: Gold Coast of Florida, USA

GFORCE wrote:
There is client for z\OS just expensive to run. I am confused as if the CICS AOR has a connection to the QSG with the MQCONN, then how is it going to connect to the QMGR that is on the same LPAR? I might be getting senile, but I am having the hardest time wrapping my mind around this.

A Qmgr on z/OS can allow client connections to it via the Client Attachment feature and it is now free.

No applications on z can use an MQ Client except possibly Java (but why would you?).
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PeterPotkay
PostPosted: Thu Mar 20, 2014 12:55 pm    Post subject: Re: CICS V4.2 and QSG's Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7717

JosephGramig wrote:

A Qmgr on z/OS can allow client connections to it via the Client Attachment feature and it is now free.


Free, as long as you have 5 or fewer clients that need to attach.

http://pic.dhe.ibm.com/infocenter/wmqv7/v7r1/topic/com.ibm.mq.doc/mi20891_.htm
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bruce2359
PostPosted: Thu Mar 20, 2014 3:22 pm    Post subject: Reply with quote

Poobah

Joined: 05 Jan 2008
Posts: 9394
Location: US: west coast, almost. Otherwise, enroute.

http://pic.dhe.ibm.com/infocenter/cicsts/v4r1/index.jsp?topic=%2Fcom.ibm.cics.ts.whatsnew.doc%2Fmqqshare%2Fdfhe4_overview.htm says:
Quote:
A queue manager is eligible for connection to a CICS region if it is currently active on the same LPAR as the CICS region.


This tells us that connections are server-bindings (cross-memory), and not client-bindings (cross-network).
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GFORCE
PostPosted: Fri Mar 21, 2014 6:45 am    Post subject: CICS V4.2 and QSG's Reply with quote

Voyager

Joined: 16 Jun 2003
Posts: 78
Location: WISCONSIN

Just to give you an idea of what I am trying to analyze for a possible messaging infrastructure:

In a sysplex of 4 z\OS LPARs with CICS on each LPAR with WMQ (QSG) on 2 LPARs. Can CICS communicate to the QSG from the LPARs without WMQ configured to it using the MQCONN to connect to the QSG? Or does WMQ and CICS have to be painted on the same LPAR?

Please advise,
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