MQSeries.net :: View topic

cicsprog · Posted: Tue Mar 30, 2010 2:15 pm Post subject:

I have some old DNS names that reflect an old company name. The powers that be want to rename the DNS to something the reflects the current company name.

So I need to change the CONNAME parameter of Cluster Sender and Receivers to reflect the new DNS name. In addtion, the underlying IP will change.

Depending on what you read from IBM, this change may or may not be all that easy.

http://www-01.ibm.com/support/docview.wss?uid=swg21167844

and this from IBMLink

"Usage
View document

How to move a cluster queue manager from one LPAR to another

Technote (troubleshooting)

Problem(Abstract)
You want to reconfigure your WebSphere MQ cluster setup. You want to move your cluster queue manager (can be partial or full repository queue manager) from one LPAR to another.

Resolving the problem
Assume that you are going to move the Queue Manager XYZ in ClusterA from LPAR A to LPAR B. To do this, perform the following steps:
If there are only 2 full repository qmgrs for this cluster, and both full repository qmgrs are to be moved at once.

See: Problem 4 â€” 2 full repositories moved at the same time.
If there are only two full repository qmgrs for this cluster, and only one of these is being moved.
The following steps should be used:
1. Suspend queue manager XYZ.
SUSPEND QMGR CLUSTER(clustername)

2. Alter XYZ's CLUSRCVR channel to its new conname.
ALTER CHANNEL(chlname) CHLTYPE(CLUSRCVR) CLUSTER(clustername) CONNAME(new_conname)

3. Stop queue manager XYZ on LPAR A.

4. Re-start queue manager XYZ on LPAR B.

5. Resume queue manager XYZ.
RESUME QMGR CLUSTER(clustername)

6. If qmgr XYZ is a full repository qmgr, alter the conname of any CLUSSDR definitions that point to this qmgr.
ALTER CHANNEL(chlname) CHLTYPE(CLUSSDR) CLUSTER(clustername) CONNAME(new_conname)

If there are more than 2 full repository qmgrs,it would be best to change the full repository qmgr that is being moved, and make it a partial repository before the above steps are carried out. Then set it back to being a full repository qmgr after the above steps have been followed.

Instructions for doing this can be found in:
Task 5: Moving a full repository to another queue manager.
Follow steps 1-3 of Task 5 to change a partial repository to a full.
Follow steps 4-5 of Task 5 to change a full repository to a partial. "

Has anyone done this sort of change? What problems did you encounter and what commands did you have to enter to accomplish?

Thanks!