> Suppose I want to set up two hard-disks with RAID 1 (mirroring), is it
> possbile ?  I went through the ccd manpage, and it gives an option called
> mirroring -- is it the same as what I am asking ?

NetBSD 1.4.2 includes RAIDframe which may be what you are looking for.  I
have a page at http://worldmap.net/raid.html that describes how I
implemented RAID on 1.3K, but it should be similar on 1.4.2.

Good luck!   Mike.