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On 17 Dec 2008, at 02:24, Grant wrote: |
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> ... Everyone seems to love |
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> RAID1 though, and I'm a little confused as to why. |
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Everyone loves RAID1 because it "backs up your data". |
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Note the use of quotation marks. |
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You stated that data throughput was a bottleneck for your system, so |
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RAID1 may not give you the benefits you require. |
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Under RAID0 any given byte is read or written 1/2 from drive A & 1/2 |
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from drive B. |
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Under RAID1 any given byte may be read or 1/2 from drive A & 1/2 from |
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drive B, but must be written completely to both drives. |
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Compared to a single drive: |
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RAID1 doubles sustained read speed (write speed unaffected). |
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RAID0 doubles sustained read AND write speeds. |
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Stroller. |
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