On 1/15/2013 8:58 PM, Peter Rabbitson wrote: > On Tue, Jan 15, 2013 at 08:48:23PM -0600, Stan Hoeppner wrote: >> With only 4 drives RAID6 doesn't make sense as RAID10 is superior in >> every way. > > Except raid6 can lose any random 2 drives, while raid10 can't. This isn't a legitimate argument. The probability of you being struck by lightning is greater than two drives in the same mirror in a 4 drive RAID10 dying before a rebuild completes. I challenge you to do an exhaustive search for anyone, at any time in history, who was managing the array properly, suffering such a two drive failure and losing a RAID10 array, 4 drives or greater. Note that controller failures with all drives on one controller don't count, as that failure mode will take down any array of any RAID level. -- Stan -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html