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Article #14Re: SSD --- The reliability of
From: kony
Date: Sat, 15 Aug 2009 19:47
Date: Sat, 15 Aug 2009 19:47
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2269 bytes
On Fri, 14 Aug 2009 22:50:17 +0200, Richard Kofler <richard.kofler@chello.at> wrote: >And n e v e r e v e r go RAID5 using a flash disk! >Writing the parity there kills a third of the lifetime. >www.baarf.com has all on RAID5 and why never it is a good >idea. In some cases a third of the lifetime would be a trivial amount to lose. The big mistake many seem to make when considering flash limited write-cycles is they are trying, deliberately trying, to fill the whole drive. Instead of leaving a few GB of free space, if a drive is selected that has 4X as much free space, you quarter the write cycles. That could be a substantial difference, supposing it might last 16 years instead of 4. I don't mean to suggest flash is a universal replacement for other solid state storage but for most uses it is more reliable.
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