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On Tue, 16 Dec 2008 18:24:27 -0800, Grant wrote: |
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> I'm about to buy a couple Samsung Spinpoint F1 hard drives and I was |
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> planning on setting them up in a RAID0 array. Everyone seems to love |
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> RAID1 though, and I'm a little confused as to why. Don't daily |
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> backups secure 99% of the data that RAID1 does? |
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No. If you backup runs in the early hours on a cron script and your drive |
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fails at 6pm, not only have you lost a full day's work, but you'll spend |
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the rest of the evening restoring your backups to a new drive. The next |
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day you'll be tired and bleary-eyed, and still a day behind. With RAID1 |
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(or 5), you just plug in another drive. RAID should not be considered an |
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alternative to backups, but a separate layer of data security. |
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> They even protect in |
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> the event of theft or fire which RAID1 doesn't. |
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Which is why you still need offsite backups. |
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-- |
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Neil Bothwick |
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A closed mouth gathers no foot. |
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