I have a Dell Poweredge 2600 running Server 2003 with three 36GB hard drives on a Perc4 controller with a RAID 5 configuration. I am running out of hard drive space so I bought three 72GB hard drives to replace the drives I have now. I was thinking of installing the three 72GB hard drives as a secondary RAID 5 configuration on the controller and using some type of software to copy and expand the partitions from the original to the new drives. What is the best way of doing this and what is the best software to use for this? I don't want to have to re-install the OS and re-configure all the software and settings I'm running on this. Your help is appreciated.