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Microsoft File Cluster and MultipPath Software

Posted on 2009-05-19
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Hi,

I am planning on implementing a 2 node Active/Passive File Cluster using Windows Server 2003 Enterprise Edition, R2.

The hardware I will be using are 2 x HP DL380 G4 series servers with a HP MSA 1000 or 1500 external storage.  This will obviously house the shared drives and the quourom.

The question I have is do I need to use Multi Path software?  Honestly, I dont really know what it is.  Can someone please expalin to me how it works and how I would use it in the scenario described above?

I would appreciate all feedback.

Kind Regards,

Paul
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Question by:Ireland18
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bcoyxp earned 1000 total points
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hi paul,

let me explain this in simple or "layman's" term. (i dont want to give you hyperlinks, just plain explanation)

basically, Multipathing software is a tool which helps your server recognize it's network attached drives. This happens if the link you have established between your server and NAS is redundant. Let's say, you are connecting two (2) Fiber cables from your server to your NAS, whenever you present the LUNs to your server, for example you have presented 2 LUNs (drives), the result would be 4 Drives being attached to your server. this is because of the two links you have established. this would be point where the Multipathing software will be of use. the multipath software detects whether the LUNs being presented on both links are the same or not.

if you are using MSA, you should be having their own multipathing software. Anyways, if you have the option of installing Windows Server 2008, it comes with it's own Multipathing Support Feature which mostly supports the current storage systems.

i hope this help.

feel free to respond if you have more queries. we have lots of experts available who could help.

Regards,
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