RAID 3, 4 and 5 aren't the answer (Score 1)

To clarify, if you care about data integrity rather than just disk array uptime, RAID levels 3, 4, 5 and now 6 aren't the answer. Examine RAID 1+0 much more closely.

The short and sweet of it is that on event of a rebuild, if a single drive serves up a corrupted block, the rebuilt data will be corrupt and with no way of affirming that. Google for ACNC's website, as well as BAARF. The original BAARF site seems to be down.

Disk is cheap, as are controllers.