Originally Posted by
Thrush
If so, what config? I know you can have mirror discs - so if you have 2x 500gb drives and set them to mirror you still only have 500gb of storage, but you have a live backup of that 500gb drive in the other 500gb drive - what RAID is this?
RAID 1
Originally Posted by
Thrush
Next, If I have a NAS box with 4 500gb drives, how could I get the PC's connected to it (via network) to see it as a total capacity of 2tb? Which RAID config would this be?
RAID 0, assuming data is spread across the discs (e.g. one file could be chopped in four pieces, one on each drive). Otherwise it's not RAID, just lots of discs together.
RAID is explained here in full:
http://en.wikipedia.org/wiki/RAID
Originally Posted by
Thrush
Cos the problem with my NAS box is that whilt I can connect an external drive to it (either USB2 or eSATA) it is a seperate drive and not shown as a continuation of the NAS box, as in total storage capacity....
Some NAS boxes will allow up to two drives that can be used as RAID 0 or 1, anything which supports more drives will become seriously expensive, and that's without drives in it !!!