Replacing the hard drives isn't quite so simple. Just getting myself into the high security server farm is a major big deal. The drives are hot swappable, so that should be easy, but Dave definitely doesn't want me screwing with his server stack. He knows me too well. <g>
Ah, it sounds like you are using SCSI hard drives. Quite logical, actually. I worked with them too. Mounting and unmounting drives are not difficult in Linux systems.
We live in different states so I would not be able to help.
Jeanette Isabelle