On Tue, 24 Jul 2012, dweimer wrote:
Just curious, I am sure the likely issue is a bad disk, but I thought there
might be a chance this could be caused by possibly by something else.
I have three 1TB disks I use for backup, two of them are Western Digital
drives I bought specifically for this purpose. One is a Seagate drive that
came out of a barebones PC that I replaced with a couple smaller drives in a
stripe to gain performance. I use the drives in an external SATA dock, using
geom eli encryption, the western digital drives give me no problems, but the
seagate drive gives me a lot of the following errors under load.
ad4: TIMEOUT - WRITE_DMA48 retrying (1 retry left) LBA=817755328
ad4: WARNING - WRITE_DMA48 UDMA ICRC error (retrying request) LBA=837397120
ad4: TIMEOUT - WRITE_DMA48 retrying (1 retry left) LBA=879786112
ad4: WARNING - WRITE_DMA48 UDMA ICRC error (retrying request) LBA=882931200
ad4: WARNING - WRITE_DMA48 UDMA ICRC error (retrying request) LBA=890542016
ad4: WARNING - WRITE_DMA48 UDMA ICRC error (retrying request) LBA=902767296
ad4: TIMEOUT - WRITE_DMA48 retrying (1 retry left) LBA=904071296
dmesg info about the drive at connection time:
ad4: 953869MB <Seagate ST31000528AS CC46> at ata2-master UDMA100 SATA 3Gb/s
There are more than a few problem reports on the net concerning that
drive, even on Seagate's own forums. Both hardware problems and
firmware problems. Your later post says you have firmware version CC46,
and Seagate has an update to CC49. That's worth a try.
http://knowledge.seagate.com/articles/en_US/FAQ/213891en?language=en_US
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