[CentOS] megaraid/PERC

I've got two drives from a now-dead server, they were RAIDed, a mirror,
I'd assume. I need to see if there's anything on them I need to transfer
to the replacement, so I just shoved them into another Dell server, with a
PERC 5 controller - I think that's what the dead one had. I fired up
MegaRAID storage manager... but can't see any way to tell it to recreate
that RAID. Anyone done this?

        mark