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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? They even protect in |
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> the event of theft or fire which RAID1 doesn't. |
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> |
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> If one hard drive dies in a RAID1 array, does the system keep running? |
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> If so, that's good, but there are so many other components that could |
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> die. In 15 years I've lost the power supply, video card, modem, |
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> motherboard, and CPU, but never a hard drive. With all these |
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> potential points of failure, how much greater system reliability do |
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> mirrored hard drives really offer? |
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In fifteen years I've lost roughly fifteen hard drives and one power |
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supply. Hard drives have moving parts and that equals failures. |
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Congratulations on being lucky, though you have wonder why so many thing |
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that don't normally have issues are having issues in your system. :-) |
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Do I back my stuff up? Yes. Do I also run RAID1? Yes. Why? Because |
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having to go dig you backup out is really time consuming whereas |
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ordering a new hard drive and plugging it in requires next to no work. |
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In almost all cases I can think of your RAID1 system will continue to |
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keep running with the lost of a single disk. Also RAID1 acts like RAID0 |
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when you're reading from it so there is a performance increase on reads. |
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kashani |
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