Installation is pretty easy, though it does require an additional backup drive to shuffle your data around.

She ran a quick self-test of the backup drive and then punched in a longer test of the full system.

But then, of course, your backup drive will need a backup drive of its own.

Every bit written to his main drive is simultaneously copied, or mirrored, to a backup drive.

If the first hard drive fails, an operator can switch to the backup drive.

But what is a little strange is he's got no disk in his backup drive.

By the time I'd got it up and running and connected to the backup drive, she was propped up on one elbow watching me.

And basically every hour or so they say, hey, is there any change between the main drive and the backup drive?

"Imagine, adding backup linear drive and hyperspace to a Verdi-class!"

(Archos even suggests that it can also be used as a backup hard drive.)