Use fdisk to partition the disk
fdisk /dev/hdb (i used type 83 LINUX)
reboot and then create the ext3 filesystem
mke2fs -j /dev/hdb1
you can then use
tunefs -i o /dev/hdb1 (to remove the 35 reboot checking)
I choose to mount as an individual ibay - you can mount anywhere. So i created an ibay via web interface. Then edited /etc/fstab to mount the new drive at boot. My new entry was-
/dev/hdb1 /home/e-smith/files/ibays/filez ext3 defaults 1 2
The result
Filesystem Size Used Avail Use% Mounted on
/dev/hda2 73G 40G 29G 58% /
/dev/hda1 23M 5.5M 16M 26% /boot
none 57M 0 57M 0% /dev/shm
/dev/hdb2 73G 33M 69G 1% /home/e-smith/files/ibays/filez