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On 17/09/2013 15:22, Grant wrote: |
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>>> Performance doesn't seem to be one of ZFS's strong points. Is it |
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>>> considered suitable for a high-performance server? |
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>> |
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>> ZFS is one of the fastest FS I am aware of (if not the fastest). |
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>> You need a sufficient amount of RAM to make the ARC useful. |
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> |
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> How much RAM is that? |
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> |
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> - Grant |
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> |
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1G of RAM per 1TB of data is the recommendation. |
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For de-duped data, it is considerably more, something on the order of 6G |
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of RAM per 1TB of data. |
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The first guideline is actually not too onerous. It *seems* like a huge |
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amount of RAM, but |
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a) Most modern motherboards can handle that with ease |
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b) RAM is comparatively cheap |
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c) It's a once-of purchase |
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d) RAM is very reliable so once-off really does mean once-off |
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-- |
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Alan McKinnon |
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alan.mckinnon@×××××.com |
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