Thanks for your replies!

The reason I asked is that I am thinking about a couple of methods
to detect failures of my two mirrored disks (by fs) automatically.
How do you check if your disks are still ok? I know I could invest
in a real raid controller and rely on that but I still like the
idea of being independent of yet another piece of hardware which
internal formatting of the disk is hidden from me..

Kind regards,

Christian

-- 
You may use my gpg key for replies:
pub  1024D/47F79788 2005/02/02 Christian Kellermann (C-Keen)