i assume the system crashed so you had to restart.
the drive wont be listed in the webgui anyways since it is not part of the array.
you should be able to see it in Joe's unMenu or if you connect with telnet.
if you still cannot see it there, i would guess, that the drive is either faulty or your sata cable should be resitted. to be sure, check if you can see it through the BIOS.
Thanks, I actually think the disk is bad.
Another question though, if I lose my telnet session during preclear for whatever reason, is there a way for me to log in to check on the status of a preclear that was already initiated?