Quote Originally Posted by Joey
I have a SuperMicro system with 12 Seagate Drives, we have few incidents that drives stop responding . We believe its drive issues.
The drives I am using are Seagate Barracuda ES.2 SATA.
G'day Joey

We have had a lot of experience with Seagate 1TB ES.2's, and they are now working fairly pain free.
Firstly, you don't mention the if you are using a h/ware based raid, onboard raid or software raid in DSS, or what firmware version and/or size your ES.2s are.
But my gut feeling is you need to update to AN05 if you have the 1TB drives.
There is plenty of info in these forums about non AN05 Seagates.

I take it that drives are suddenly dropping out of the array, not just on boot?
We had the same problem with a 12 drive RAID6 array. when we split it into 2xRAID6 with 2 hot spares, and updated the firmware to AN05 our problems went away.

BTW if you have data on the drives and find the raid disappear our experience on updating the Seagate firmware is here:
http://forum.open-e.com/showthread.p...hlight=seagate