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using Linux as a front-end controller for a SAN?


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Hi all,

 

I hope someone can shed some light on this for me. Has anyone tried, or have experience with, setting up a Linux server to manage a few NAS devices and thus make them all visible to the clients as one large SAN?

 

Basically, I'm thinking it would be a good idea to combine the current NAS's we have into one large system (typically a SAN?) and then let the clients all connect to one server (for authentication, LUN control, etc), but then when they need to access their drives / devices / LUN's, they get redirected to the specific server directly. I'm also thinking it could be a good way to say some IP addresses, i.e. instead of giving each NAS a public IP, they could all have private IP's and then everyone just connects to the public IP if needed. The servers which will access the NAS's will be on the same physical LAN and will also be on the same private IP subnet to make it easier.

 

Does anyone know what I'm talking about?

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I would mount all the NAS on the linux server and use a distributed filesystem to sort out the NAS like GlisterFS or something.

 

I also thought of going that route. But the network congestion would make this a very unstable system. I need a way for the clients to talk to their respective NAS servers directly, but still need something to centrally control everything. If this makes any sense?

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