Subject: Re: Bad sectors vs RAIDframe
To: Stephen Borrill <>
From: David Brownlee <>
List: netbsd-users
Date: 06/06/2005 17:03:24
On Mon, 6 Jun 2005, Stephen Borrill wrote:

> Just had another 2 of these drives fail in the same way at a different site, 
> thus killing the RAID array completely (what is it with Maxtor 6Y080M0 
> drives?). With a regular FFS partition, some data recovery is possible, but 
> it appears that as soon as bad sector is encountered with RAIDframe, the 
> whole component is failed. While this is generally a good thing, if 2 drives 
> die at roughly the same time (with just a couple of bad sectors), it means 
> data recovery is not easy. Any suggestions how to recover anything from this?

 	Setup the wd disklabel to have partitions that match those inside
 	raidframe, but offset by 64 sectors, then use those instead of
 	the raid partitions to access the data.

 	This is assuming a RAID1 array

 		David/absolute       -- No hype required --