RE: HDD not showing after restart?
So to clarify, you had 2 raid arrays (OS and Data)? You removed a drive and the Data array is failed, and the physical drives aren't showing in the Raid Controller BIOS??
What controller are you using?
What are the drive lights doing?
What is the raid configuration in the controller BIOS, also what do those drives show under PHYSICAL DISKS?
Let me know what you find.