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Date:      Tue, 24 Jul 2012 17:46:29 -0500
From:      dweimer <dweimer@dweimer.net>
To:        Warren Block <wblock@wonkity.com>
Cc:        FreeBSD Questions <freebsd-questions@freebsd.org>
Subject:   Re: Disk Errors
Message-ID:  <b6ee940ff54720d5ebb4367ba2358140@dweimer.net>
In-Reply-To: <alpine.BSF.2.00.1207241502440.62203@wonkity.com>
References:  <d65bfc394e4b31d92bb6ab9e8d220d16@dweimer.net> <alpine.BSF.2.00.1207241502440.62203@wonkity.com>

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On 2012-07-24 16:10, Warren Block wrote:
> 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

Definately going to try this firmware update, if only it would see the 
disk through the eSATA controller, but unfortunately it marks it as a 
JBOD raid instead of straight access to the disk.  So this will have to 
wait until I put my puppy to bed for the night as she keeps trying to 
eat the pillow from my bed while I am working on this.

-- 
Thanks,
    Dean E. Weimer
    http://www.dweimer.net/



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