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Date:      Thu, 12 Oct 2006 08:24:41 -0700
From:      Garrett Cooper <youshi10@u.washington.edu>
To:        freebsd-questions@freebsd.org
Subject:   Re: Hard Drive Issues
Message-ID:  <452E5E39.8030106@u.washington.edu>
In-Reply-To: <003a01c6ee0a$841e74f0$6908a8c0@pcmoperations>
References:  <003a01c6ee0a$841e74f0$6908a8c0@pcmoperations>

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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
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