I am in the process of finding out if there is a disk array system which can increase the space on a logical drive (say E:) evertime a new drive is purchased. However I do not want the drives to be reformated everytime a new drive is purchased.
For example: I purchase a disk array with 16 slots. I buy 3 hard drive of 70G each. If I use RAID 5, I get 140G of free hard drive space for Drive E:. When I purchase the 4th hard drive, I want the new drive E: to be 210G without backing up the data, formating the drives and restoring it again.
I would appreciate any insight and links which explain their system.