4 ms·
In a 4 disk system RAID6 can survive any 2 disks failing but RAID10 can only survive 2 disks failing if you get lucky. Once you go past 4 disks, RAID10 becomes
by WatchDog 12y ago
In a 4 disk system RAID6 can survive any 2 disks failing but RAID10 can only survive 2 disks failing if you get lucky.
Once you go past 4 disks, RAID10 becomes quite expensive and yet can still be killed by a 2 disk failure event.
- barrkel 12y agoWork out the probabilities. The results may surprise you. They did me. I was like you once.
- mprovost 12y agoThe window for losing two disks is reduced though, because rebuilding a single drive failure is much faster in a RAID 10 system where it's just a drive copy, as opposed to n drive reads and a parity calculation.