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MQSeries.net Forum IndexIBM MQ Installation/Configuration SupportDR scenairos

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redacted
PostPosted: Mon May 06, 2019 11:12 am Post subject: DR scenairos Reply with quote

Newbie

Joined: 18 Dec 2018
Posts: 4

Other than with the appliance, is there any way to combine RDQM HA and DR? I would like to set up something resilient across two fairly close together datacenters (30 miles). this will be for approx 15 - 20 queue managers. I am also looking at Veritas, SRM, and Vmotion.

Wondering how others handle DR?
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exerk
PostPosted: Tue May 07, 2019 12:32 am Post subject: Reply with quote

Jedi Council

Joined: 02 Nov 2006
Posts: 6015

DR RDQM - it's in the Knowledge Centre...
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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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redacted
PostPosted: Tue May 07, 2019 3:22 am Post subject: Reply with quote

Newbie

Joined: 18 Dec 2018
Posts: 4

Thanks, I saw that. It shows one node with a DR pair. I was looking more for info on how to pair a 2 or 3 node HA setup with RDQM at another site.
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exerk
PostPosted: Tue May 07, 2019 10:20 am Post subject: Reply with quote

Jedi Council

Joined: 02 Nov 2006
Posts: 6015

redacted wrote:
Thanks, I saw that. It shows one node with a DR pair. I was looking more for info on how to pair a 2 or 3 node HA setup with RDQM at another site.

I don't know of any way to DR an RDQM set-up. Theoretically, if you have three data centres and your data centres are Metro-located, and the latency is within the limit stated, you could have an RDQM that is pretty much HA and DR, but it's not something I'd want to rely on.

Most DR scenarios posit an 'empty' queue manager and application-level reconciliation.
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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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PeterPotkay
PostPosted: Tue May 07, 2019 3:37 pm Post subject: Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7527

Currently RDQMs make you choose either HA or DR, but not both.

Currently.
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Peter Potkay
Keep Calm and MQ On
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gbaddeley
PostPosted: Tue May 07, 2019 3:40 pm Post subject: Re: DR scenairos Reply with quote

Padawan

Joined: 25 Mar 2003
Posts: 1949
Location: Melbourne, Australia

redacted wrote:
Other than with the appliance, is there any way to combine RDQM HA and DR? I would like to set up something resilient across two fairly close together datacenters (30 miles). this will be for approx 15 - 20 queue managers. I am also looking at Veritas, SRM, and Vmotion.
Wondering how others handle DR?

It depends how critical the qmgrs are, and the DR time objectives for your business functions. We have 2 datacenters in the same city and use PowerHA and MSCS clusters, with servers split across the datacenters. RDQM and MIQM are not robust enough for our requirements.
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Glenn
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PeterPotkay
PostPosted: Tue May 07, 2019 6:16 pm Post subject: Re: DR scenairos Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7527

Sometimes DR requirements stipulate the alternate location is so far away that you must use asynchronous solutions.

It's up the people wearing fancy suits and driving expensive cars to decide if an alternate site that close satisfies the company's DR requirements for protection from regional disasters.

If your DR location is so close that a solution based on synchronous replication works, your H.A. solution simply gets stretched between both sites and you accomplish H.A. and DR in one fell swoop.
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Peter Potkay
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