We have a HP ML350 G4 (actually 2) with a Smart Array 641 controller and drive bay which currently has 2 72GB drives configured as 1 logical drive under the HP Array Config Utility. There are 4 slots still open in the drive bay and I need to add more storage for our group shared drive that currently resides on another server. I'm not real familiar with RAID or SCSI drives but I assume if I just stuff more drives in the server, it's going to add them to the current array. Can I add 2-3 150GB drives and configure them as a separate RAID array/logical drive? Server is running Windows 2003.