*
For me i have no problems but only in RAID 10 with 4 * disks 1TO and a long time > 5 years
Possible problem is because you use very large Raid , i have never used with 2TO disks and RAID > 2TO
I have sometimes a defect RAID but that is because i shutdown my computer ' has the wild ' but after recoconstruct is fine , absolutly no problem
Pierre