Comment RAID6 with enterprise hardware is reliable (Score 2, Interesting) 444
I use RAID6 for several high-volume machines at work. Having double parity plus a hot spare means rebuild time is no worry.
But if you are not a fan you can always throw something together with ZFS's RAIDZ or RAIDZ2 which is also distributed parity but the ZFS filesystem checksums and keeps multiple (distributed) copies of every block to detect and fix data corruption before it becomes a bigger problem.
People using ZFS have been able to detect silent data corruption from a faulty power supply that other solutions would never have found just because of the checksumming process.