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04-23-2009 06:40 AM
04-23-2009 06:40 AM
Sanjay Mundhra
I am a HPE Employee
Solved! Go to Solution.
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04-23-2009 07:30 AM
04-23-2009 07:30 AM
SolutionYou'll learn about the restrictions and the requirements after reading through the OpenVMS and particularly the Cluster software product description (SPD), and the OpenVMS documentation. Start with the OpenVMS Cluster SPD.
SPDs: http://docs.hp.com/
Docs: http://www.hp.com/go/openvms/doc/
In general, mixed-architecture clusters work just fine. Even triple-architecture, which is officially unsupported. So long as you don't go do something that is either "bad" or "excessively clever", that is. And becoming familiar with the SPDs and with the OpenVMS documentation can definitely help avoid badness.
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04-23-2009 08:05 AM
04-23-2009 08:05 AM
Re: Mixed VMS Cluster Configurations
I would strongly recommend a thorough reading of the OpenVMS Clustering Manual.
Mixed architecture clustering works very well. Of course, each architecture requires AT LEAST a separate disk volume for system residence.
Care also needs to be taken when setting up common user utilities and command procedures, since executable utilities will have to have images for each architecture, and the appropriate logical names to point to the correct directories and images for each architecture.
Mixed architecture clusters figured in my OpenVMS Technical Journal article on the Alpha to Itanium transition (see http://www.rlgsc.com/publications/vmstechjournal/migrationstrategies.html ).
- Bob Gezelter, http://www.rlgsc.com
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04-23-2009 04:31 PM
04-23-2009 04:31 PM
Re: Mixed VMS Cluster Configurations
Thanks for the reply.
Regds,
Sanjay
Sanjay Mundhra
I am a HPE Employee
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04-24-2009 12:40 AM
04-24-2009 12:40 AM
Re: Mixed VMS Cluster Configurations
Take Hoff's and Bob advise seriously.
And if you should be interested in any experience: we have been running mixed cluster in production for years, without any (planned nor unplanned) down time.
But do mind the (version) compatibility matrix!
hth
Proost.
Have one on me.
jpe