Patent ID: 6625144
Filing Date: 2003-09-23
Classification: G06F

Abstract:
A method for operating a first RAID storage controller to reset a second RAID storage controller, said first controller having a first connector, said second controller having a second connector, said first and second controllers communicating with each other using RS-232 protocol via said first and second connectors and a cable, each of said connectors having eight pins to handle RS-232 protocol and an additional, ninth pin, said method comprising the steps of:said second controller sending a cable present signal to said first controller via said ninth pin of each of said connectors and said cable when said cable is present between said first and second controllers; said first controller pinging said second controller to determine, by an appropriate response from said second controller or lack of said appropriate response, whether or not said second controller is able to communicate with said first controller; and if said appropriate response is not received by said first controller from said second controller and if said cable present signal is being received by said first controller from said second controller, said first controller sending a reset signal to said second controller.