On Sun, Dec 10, 2017 at 4:45 AM, Wols Lists <antli...@youngman.org.uk> wrote: > On 09/12/17 23:36, Rich Freeman wrote: >> you instead compute 5 sets of parity so that now you have 9 sets of >> data that can tolerate the loss of any 5, then throw away the sets >> containing the original 4 sets of data and store the remaining 5 sets >> of parity data across the 5 drives. You can still tolerate the loss >> of one more set, but all 4 of the original sets of data have been >> tossed already. > > Is that how ZFS works? >
I doubt it, hence why I wrote "most parity RAID systems seem to operate just as you describe." -- Rich
