Redundant controller data storage system having system and method for handling controller resets

摘要

A redundant controller data storage system having a system and method for handling controller resets is described. In one aspect, the method of handling a controller reset in a redundant controller system according to the present invention includes the redundant controller system having a first controller and a second controller. A controller reset is detected on the second controller. The first controller is notified of the controller reset via a communication link between the first controller and the second controller. A shutdown process on the first controller and the second controller is performed. The communication link between the first controller and the second controller is disabled, wherein detection of a subsequent controller reset via the second controller cannot be communicated to the first controller via the communication link.