A server system is disclosed. The server system comprises a host system, at least one hard disk (HD) drive, a host bus adapter (HBA), at least one indicator, a storage enclosure processor (SEP), a baseboard management controller (BMC) and a snoop device. The HBA is used to issue a bus signal in a format suitable for transmission over a serial bus according to the received drive state from the at least one HD drive and send the bus signal over the serial bus. The SEP receives the bus signal over the serial bus and drives the at least one indicator to corresponding states. The BMC is coupled to a network. The snoop device detects the bus signal over the serial bus and sends a warning signal to the BMC when a drive failure event is detected.