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.

You should replace this drive ASAP, because it may well fail 
completely, and soon...

-- 
-Chuck