An administrator has just upgraded a server from non-hot plug storage to all hot plug storage. The administrator powers up the server, during POST the RAID controller is recognized but none of the…

When the RAID controller is detected but no drives are active or recognized, the most common and fundamental issue is a physical connection problem; checking the backplane cabling ensures that the drives are properly connected to the controller.

Checking the server BIOS is a subsequent step if cabling is verified, as the absence of drive lights strongly suggests a physical connection issue rather than a BIOS configuration error initially.

Updating the RAID controller firmware is a more advanced troubleshooting step, typically reserved for when the controller is recognized but exhibits functional issues or fails to correctly manage detected drives.

Installing hard drive firmware is only possible if the drives are already recognized by the system; this step cannot be performed if the drives are not even detected.