This may help. Found this in some of my notes from 2002!
Fix Fatal Command line:
co dev fsck [device number] /fix /fixfatal
Device Numbers ( can be determined using: "in dev" )
60000 - Raid 5
50000 - Mirror
40000 - Span
If individual drives
10000 - drive 1
10008 - drive 2
10010 - drive 3
10018 - drive 4