FreeNAS 8.3.1-p2
I have four Seagate ST32000641AS drives in RaidZ1 (plus an identical one as a spare) mounted in an iStarUSA 5-drive cage. One of these drives has started showing CKSUM errors after almost every copy operation. I ran the long SMART test, and the drive passed. I have swapped drives in the cage, so the problem drive is now connected by a different cable to a different motherboard port (thus ruling out the cable and the motherboard as possible problems), but the checksum errors continue with that specific drive -- and only that one.
The drive is still in warranty, but with no errors showing up in the SMART test, Seagate will not replace it. (IAC, based on past experience, Seagate would replace it by a refurbished current-production model (ST2000DM001, which receives lower user ratings on NewEgg).
What could be causing this problem?
I have four Seagate ST32000641AS drives in RaidZ1 (plus an identical one as a spare) mounted in an iStarUSA 5-drive cage. One of these drives has started showing CKSUM errors after almost every copy operation. I ran the long SMART test, and the drive passed. I have swapped drives in the cage, so the problem drive is now connected by a different cable to a different motherboard port (thus ruling out the cable and the motherboard as possible problems), but the checksum errors continue with that specific drive -- and only that one.
The drive is still in warranty, but with no errors showing up in the SMART test, Seagate will not replace it. (IAC, based on past experience, Seagate would replace it by a refurbished current-production model (ST2000DM001, which receives lower user ratings on NewEgg).
What could be causing this problem?