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On 12.06.2013 06:57, Norman Rieß wrote: |
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> Am 11.06.2013 16:19, schrieb Nick Khamis: |
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>> Hello Everyone, |
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>> |
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>> Was wondering what people are running these days, and how do they |
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>> compare to the 10,000 dollar SAN boxes. We are looking to build a fiber |
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>> san using IET and glusterFS, and was wondering what kind of luck people |
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>> where having using this approach, or any for that matter. |
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> |
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> the question is, what are you doing with it and why do you think you |
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> need a fibre channel SAN. |
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> Our goal indeed is to get rid of the SAN infrastructure as it is |
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> delicately to all kinds of failure with nearly zero fault tolerance. |
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> An example, you have an hicup or a power failure in your network. SAN is |
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> dead from nowon and must be reinitialized on the server. Simple NFS |
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> comes back up without any fuzz. |
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> Another, you boot your storage systems due to an os update or something |
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> like that. Your SAN will be dead. NFS will just go on as if nothing |
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> happened. |
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> We use netapp storage systems which are NAS and SAN capable. |
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> Another point is, that if you have a SAN lun, there is either no way to |
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> increase or decrease size on the fly, on cifs or nfs you can resize your |
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> share on the go. |
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> |
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> So if you do not have a _really_ good reason to use a fribre channel |
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> SAN, don't! |
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Hello, |
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I tend to disagree. A correctly designed SAN (using dual Fabric among |
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other things) is a lot more stable and has a lot better performance than |
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any NAS (NFS, CIFS, iSCSI) solution. One other thing that also needs to |
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be correctly configured to have a stable SAN infrastructure is the |
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servers on it (Multipathing, partition alignment, queue depth, ...) |
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according to the storage vendors recommendation. |
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LUN expansion/shrink is storage vendor specific, some can not (netapp |
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apparently) but others can. |
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Just my 2 cents. |
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Regards, |
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-- |
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Dan Johansson, <http://www.dmj.nu> |
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This message is printed on 100% recycled electrons! |
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