Have a 450, Rls 6. Installed the keycode for RAID. Loaded the R6 Factory Image patch. Installed the drive, enabled RAID. Rebooted, but still will not recognize the 2nd drive. I have Green, Red, Red LEDs. Tried another brand new drive, no change. The docs just say plug it in, enable and when it reboots, it will start mirroring. Am I missing something?