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December 20th, 2010 17:00
Front End Connectivity for V-Max
If you have an odd number of engines (e.g. 3) how would you connect your hosts for proper redundancy? What do you do when you get a forth engine a year later?
As of right now, I am thinking to only use the first two engines. Any thoughts?
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Medet
24 Posts
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December 21st, 2010 09:00
In my opinion you should use all engines, it will increase availability and performance. For connectivity you should use minimum two ports from each engine, each port should will choose from separate directors.
Medet
24 Posts
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December 21st, 2010 20:00
I didn't concern the Rule 17. I think this correct for any systems, because you will use all possible path to connect. But maybe exist some limitations when you work with V-Max. I don't have experience with V-Max.
sauravrohilla
859 Posts
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December 21st, 2010 20:00
I think you are concerned about Rule of 17??? It does not hold good in VMAX.
Regards,
Saurabh
SKT2
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1.3K Posts
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January 5th, 2011 18:00
I would say you use the third one as if you have a single Engine vmax. Note that each engine has two directors with each directors redundant to other.
srichev
130 Posts
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January 6th, 2011 06:00
In the V-max,Each Engine has two independent directors with 4 Processors on each.For redudancy purposes, Use the connectivity from each but different directors.At that time it does not matter how many engines you have now or in future.
Really spreading across load veritically is not provding anything more as each engine can talk to all the backend DA and can access all the cache.