Re: Rebuilding an array with a corrupt disk.

[Peter Rabbitson <rabbit+list@rabbit.us>]

Sean Hildebrand wrote:
> 
> <snip>
> 

> 
> To answer that: The drive was brand new. The thing I find odd about
> this failure is that it was integrated into the array without issue,
> meaning the disk has no issues writing to the bad sectors, just
> reading. Never had that before.
> 
> In any case, I'm very glad to have got my data with minimal loss. And
> to think, all this could have been avoided if I'd just made my array a
> RAID6 when it was first built. Certainly when I have a new fifth disk
> the array will be rebuilt as such.
> 

When you get your new disk (or any disk for that matter) run badblocks -svw on 
it. It takes about 8 hours on average drive sizes today, but guards precisely 
against the problem you faced. Additionally the drive will receive a hefty 
does of "break in", so you know it performed well under stress at least for 
several hours.