I have 3 73 GB scsi drives configured from the factory as raid 5. It is setup with a 20 gb partition for the C: drive and the rest is for data. This is my backup server and we are quickly running out of space. I am down to 27 gb on my data partition, down from 36 last month. I would need to add atleast 2 more 73 gb hard drives to the mix. Is this possible with the Dell PERC 4e/Di controller without having to format and start over? If so haas anyone done it to give me some insight. I would of course backup everything before moving forward.