Adding new Disk to MD3000

Hey,

I've just finished moving the last of our servers accross to the our new EqualLogic solution and I wanted to take some of the hard drives from an old MD3000 and install them into our testing test lab's MD3000.

My problem is after I install them they're showing as an 'Offline' Status but their mode is set to 'Assigned'.

When I go to create and new virtual volume it comes up and says theres no free spare disks..

So, does anyone know a way to get these online so I an create and new volume?