Subject: Re: Bad sectors vs RAIDframe
To: Charles Swiger <cswiger@mac.com>
From: Stephen Borrill <netbsd@precedence.co.uk>
List: netbsd-users
Date: 05/04/2005 20:20:47
On Wed, 4 May 2005, Charles Swiger wrote:
> On May 4, 2005, at 11:20 AM, Stephen Borrill wrote:
>> Got a RAID 1 set of identical Maxtor 6Y080M0 80GB S-ATA drives. One seems
>> to have developed a bad sector or two:
>>
>> wd2a: error reading fsbn 845648 of 845648-845663 (wd2 bn 847664; cn 840 tn
>> 14 sn 62)wd2: (uncorrectable data error)
>> [ ... ]
>> Is there any way to mark bad sectors in the underlying components so that
>> RAIDframe will ignore them? Is doing such a thing a sensible move?
>> bad144/badsect don't seem appropriate.
>
> No, it's not a sensible move. Modern ATA drives already use ECC and migrate
> bad sectors to the spare sectors automaticly. You don't see errors until the
> drive has had so many bad sectors appear that it has used up all of the
> replacement spare sectors.
I thought that might be the case.
> You should replace this drive ASAP, because it may well fail completely, and
> soon...
It's odd, I've had 5 of these same drives fail in the last few months
(with the same mobo model). It got me almost thinking it was a bug in the
driver for the chipset.
--
Stephen