Triple parity RAIDZ (RAIDZ3) support in ZFS
I just saw the following putback notice come over the wire:
Author: Adam Leventhal
Repository: /hg/onnv/onnv-gate
Latest revision: 17811c723fb4f9fce50616cb740a92c8f6f97651
Total changesets: 1
Log message:
6854612 triple-parity RAID-Z
This is pretty sweet, and with the introduction of 2TB+ drives, using multiple parity drives will become essential to ensuring that your data is safe when a drive failures occur.
Adam Leventhal on July 22nd, 2009
Took me a few days, but I finally got around to explaining what I did: http://blogs.sun.com/ahl/entry/triple_parity_raid_z