Help with Project

Hello there.

Sorry for my english, im from DR. I've been asigned a grade project in college and i need some ideas on how to start. The project is about using SAN (storage area network) and make an implementation where i need to develop a service or application the takes all free space in every hard disk available on every host in the network and make a single logic unit with it. Then, distribute the files on the disks.

Any ideas?