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Super Simple RAID Cheat Sheet

I hate trying to remember which version of RAID does what. Maybe this will help:

RAID Number Why
0 Zero Speed, still fails.
1 One 1:1 redundant, faster read, slow writes
5 Five Stripe with parity, fast, more reliable
6 Six Like 5, but takes more disks.
10 Ten or "One plus Zero" Striping and mirroring. Speed and reliable. $$$
01 or Zero plus One Same as 10 (as far as you care)

Of course, if Drobo has their way none of this will matter within a few years because we'll all be using their solutions (or something like it).

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