The WD Blue is a desktop drive and wouldn't have been configured in the server from Dell. If it is showing foreign, and you don't have the option to clear it, then either the drive is bad or the drive is incompatible.  If your others are indeed Blue's (same firmware), then it is probably a bad drive.  You won't be able to do anything with it in a foreign state. Maybe you already cleared the foreign configuration.  Does it show up when you try to configure a new VD?  Does it still show on the Physical Disks screen after doing a Refresh of that page?
I just installed a spare drive in my 2900 PERC 5/i that I THOUGHT was certified, but it is not. It's to be a hot spare for a RAID 5 config. What are my options? It shows as "foreign" is physical drives. The only available tasks are blink and unblink. Thanks for any advice. PS Maybe I should go ahead and order a CERTIFIED drive...
disk not certified: what options