Mark Knecht, mused, then expounded: > > > I agree that RAID5 gives you an opportunity to get things fixed, but > there are folks who lose a disk in a RAID5, start the rebuild, and > then lose a second disk during the rebuild. That was my main reason to > go to RAID6. Not that I would ever run the array degraded but that I > could still tolerate a second loss while the rebuild was happening and > hopefully get by. That was similar to my old 3-disk RAID1 where I'd > have to lose all 3 disks to be out of business. >
If the drives in the RAID came from the same build lot, the chances of multi-drive failure are fairly high, if one fails. I've had 3 out of four drives, from the same lot build, fail at the same time. I've had others never fail. And a few that fail over time where others from the same lot failed within a month of the first failure. Bob -- -
