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To: "Justin" <justin@pcmedicsite.com>
References: <003a01c6ee0a$841e74f0$6908a8c0@pcmoperations>
	<452E5E39.8030106@u.washington.edu>
From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
Date: Thu, 12 Oct 2006 13:03:31 -0400
In-Reply-To: <452E5E39.8030106@u.washington.edu> (Garrett Cooper's message of
	"Thu, 12 Oct 2006 08:24:41 -0700")
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Cc: freebsd-questions@freebsd.org
Subject: Re: Hard Drive Issues
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Garrett Cooper <youshi10@u.washington.edu> writes:

> Justin wrote:
>> Greetings,
>>  
>> I'm getting the following errors on the terminal:
>>  
>> ad1: WARNING - READ_DMA UDMA ICRC error (retrying request) LBA=186691903
>> ad1: FAILURE - READ_DMA status=51<READY,DCS,ERROR> error=84<ICRC,ABORTED>
>> LBA=186691903
>> g_vfs_done():ad1s1d[READ(offset=95586222080, length=49152)]error = 5
>>  
>> And similar, with the LBA number, offset number, and error=84 changes to
>> error=10.
>>  
>> The hard disk drives and data seem to be remaining intact and working.  Can
>> someone direct me as to what these errors mean, and if they are serious?
>>  
>> Regards,
>>  
>> Justin P. Michel
>
> Based on your error message it appears that data is getting corrupted in
> transit on whatever channel you're using for your drives. Have you tried
> using the disk on another channel by chance, or tried another disk on
> the same channel?
> -Garrett

Or cables; any chance you've broken (over-bent) an ATA cable lately?