[sllug-members]: Replacing a failed HD in a software mirrored array

[Knight Walker]

On Thu, 2007-03-08 at 16:19 -0700, Marc Christensen wrote:
> Hey, I just saw some warnings in my /var/log/messages about a failed HD 
> in my mirrored array on a SUSE Linus 10.0 system.
> 
> It's a mirror (thanks goodness I did that!) on which I have LVM set up, 
> holding my different volumes.
> 
> 
> Has anyone replaced a HD in a sofware mirror before?  Anything I should 
> be careful of?  Any gotchas/pointers?  I haven't started looking at any 
> docs on how to do it yet...just saw the errors.
> 
> Thanks...

The drive may not actually be failed.  I've seen quite a few situations
where the RAID will kick out a drive for a transitory issue.  For me,
removing the drive from of the RAID then re-adding it fixes the problem.
If the problem reoccurs again, then it's time to replace the drive, and
it's about the same procedure except for shutting down the machine to
swap the physical part (If you don't have hot-swap).

-KW