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| rsk33 |
 Posted: Mon Jan 19, 2009 5:53 am Post subject: migration from wbimb5 to 6 |
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Centurion
Joined: 21 Aug 2006
Posts: 141
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Dears
we have broker ver5 in our prod environment and planning to upgrade to ver 6.0. As per IBM docs the queue manager can not be shared by two brokers.
Hence for the upgradation we need to create a new qmanager. But the ver5 broker qmanager is already in the cluster and connected to many front tend and backend systems.It is very risky to have upgraded newbroker and new qmanager and connecting the same to all all front end as well as backends in the cluster.
can you suggest any easier/alternate way to upgrade without disturbing the existing MQ architecture.
Regards
rsk33 |
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| Vitor |
| Posted: Mon Jan 19, 2009 6:01 am Post subject: Re: migration from wbimb5 to 6 |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| rsk33 wrote: |
| It is very risky to have upgraded newbroker and new qmanager and connecting the same to all all front end as well as backends in the cluster. |
Why risky? You will already have tested this migration out in your dev environment so you can be confident you've found & resolved any issues.... 
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Honesty is the best policy.
Insanity is the best defence. |
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| rsk33 |
| Posted: Mon Jan 19, 2009 6:23 am Post subject: |
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Centurion
Joined: 21 Aug 2006
Posts: 141
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Dear Vitor,
Thanks for the reply...
our development/UAT and prod is not identical and i can not afford to disturb the Dev/UAT environment as many projects dev/testing under progress.
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| Vitor |
| Posted: Mon Jan 19, 2009 6:32 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| rsk33 wrote: |
| our development/UAT and prod is not identical |
Well that must give each implementation an added thrill! 
Seriously, I know that no dev & prod environments are identical (prod environments tend to be scaled much larger for one thing) but surely the architecture must be the same?
| rsk33 wrote: |
| i can not afford to disturb the Dev/UAT environment as many projects dev/testing under progress. |
Two comments I think. Firstly, if you think doing this upgrade in dev is too risky and there's too much chance of disruption, why are you even thinking of doing it in prod? Secondly, if you do upgrade prod but not dev, how will you ever have confidence in prod implementations again?
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| PeterPotkay |
| Posted: Mon Jan 19, 2009 7:03 am Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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The fact that you are MQ Clustered makes it easier, not harder.
Create the new WMB 6 QM and Broker. Add the QM to the MQ cluster, but do not cluster any of its queues. Test using your own test queues and flows to verify the integrity of the new Broker. Once satisfied, deploy one application flow to the new QM. When you and the app are ready, cluster that app's queue on the new QM and uncluster it from the old. If things work well, on to the next one. If not, immediatly reverse the clustering for that one queue - a quick and painless way to "roll back" until you fix the WMB 6 problem. Once all the queues are clustered on the new QM/Broker and unclustered on the old, schedule time to shut down the old QM and Broker and ideally uninstall the WB-IMB 5.0 software.
Obviously the above only works for MQ Input. You'll have to come up with ways to reroute non MQ input.
Trying to do any of this in Production for the first time and skipping Test is crazy.
_________________
Peter Potkay
Keep Calm and MQ On |
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| rsk33 |
| Posted: Mon Jan 19, 2009 11:37 pm Post subject: |
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Centurion
Joined: 21 Aug 2006
Posts: 141
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Thanks Peter for the reply...
can i know what is the latest stabilized version (6.0, 6.1, 6.2) and fixpack i can go head to install. Also for the toolkit.
Regards |
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| smdavies99 |
| Posted: Tue Jan 20, 2009 12:46 am Post subject: |
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Jedi Council
Joined: 10 Feb 2003
Posts: 6076
Location: Somewhere over the Rainbow this side of Never-never land.
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You can find out those details on the IBM support web site section for Broker.
[url]http://www.ibm.com/products/finder/us/finders?pg=ddfinder&cm_re=other-_-suprcn-_-download[/url]
Select Websphere
Select Message Broker
Add the version you want
V6.1 is the current main release
I'm using -
6.1.0.3 runtime
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Linux user since 1995
Every time you reinvent the wheel the more square it gets (anon). If in doubt think and investigate before you ask silly questions. |
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