advantages?

[troy88]

What are the advantages to running 2 x 250GB Hardrives over 1 x 500gb? i heard about this Raid thing but i dont really know what it is or what it does?

 

[SEALBoy]

Well there are different types of RAID you can use on hard drives. You won't see any advantages running two hard drives unless you have RAID enabled. RAID 0 allows you to have the capacity of both hard drives, but if even one hard drive fails, all the data is lost. RAID 1 will give you the capacity of one hard drive, but everything is mirrored so you have a dynamic backup. There's also RAID 5, but I think that uses 3 hard drives.