[4716] in linux-scsi channel archive
Re: medium errors
daemon@ATHENA.MIT.EDU (Jon Lewis)
Sun Sep 20 03:05:36 1998
Date: Sun, 20 Sep 1998 03:07:42 -0400 (EDT)
From: Jon Lewis <jlewis@inorganic5.fdt.net>
To: Marc SCHAEFER <schaefer@alphanet.ch>
cc: linux-scsi@vger.rutgers.edu
In-Reply-To: <6u0s82$673$1@vulcan.alphanet.ch>
On 19 Sep 1998, Marc SCHAEFER wrote:
> Jon Lewis <jlewis@inorganic5.fdt.net> wrote:
> > me a hard time. I have ARRE and AWRE enabled, so this shouldn't be
> > happening. My questions are...does the fact that these read errors
>
> should not see write errors. ARRE will replace bad blocks
> on read. However, in case of a READ ERROR with no recovery
> possible even with the error correction bits (ie too many
> bit errors), the error is fatal, data is lost, and the error
> MUST be transmitted to the host.
That makes sense now that I think about it. Had there been important data
there, I'd need to know that an unrecoverable read error had rendered
the data "missing". Fortunately, all that was lost was a badblocks bit
pattern. Hardly irreplacable data :) I suppose the drive did probably
mark the sectors as bad and replace them with spares...since the errors
were not present on the next passes with badblocks.
------------------------------------------------------------------
Jon Lewis <jlewis@fdt.net> | Spammers will be winnuked or
Network Administrator | drawn and quartered...whichever
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