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Date:      Tue, 24 Jul 2012 21:38:13 -0500
From:      dweimer <dweimer@dweimer.net>
To:        Adam Vande More <amvandemore@gmail.com>
Cc:        FreeBSD Questions <freebsd-questions@freebsd.org>
Subject:   Re: Disk Errors
Message-ID:  <bdaade7aa18421d47f364b1308b1d0ea@dweimer.net>
In-Reply-To: <CA+tpaK1jiRgO08+RkLwZYgBSNW9ob-TheD_OOkbx2qHuhZKoyg@mail.gmail.com>
References:  <d65bfc394e4b31d92bb6ab9e8d220d16@dweimer.net> <CA+tpaK1jiRgO08+RkLwZYgBSNW9ob-TheD_OOkbx2qHuhZKoyg@mail.gmail.com>

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On 2012-07-24 21:29, Adam Vande More wrote: 

> On Tue, Jul 24, 2012
at 11:40 AM, dweimer <dweimer@dweimer.net> 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
> 
> This type of
problem has been a consistent problem on FreeBSD until mid 8.x range.
Try upgrading your system to something a little more modern.
> 
> -- 
>
Adam Vande More

Its running 9.0-RELEASE-P3 updated from source from an
original install of 8.2 on this hardware. 

I have done the firmware
update on the drive, so hopefully I will see an improvement in about 2
hours when tonights backups kick off. 

-- 
Thanks,
 Dean E. Weimer

http://www.dweimer.net/
 



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