[mythtv-users] Why RAID 5 stops working in 2009

[Graham Mitchell]

<snip>

Sure, that's basically the same thing.  RAID 10 just means you're taking a
bunch of RAID 1 mirrored pairs and striping data across them RAID 0 style.
 RAID 01 is the opposite; it's taking two identically-sized RAID 0 stripes
and mirroring them.  Functionally the two are equivalent, except I think
RAID 10 has some advantages when you have to rebuild.

With RAID01, you need to rebuild across 3 or 4 or however many disks you
have in the stripe. With RAID10, all you ever need to rebuild is a mirrored
pair, so it's going to be much faster (for a given size of disk).


G