Wim A Coekaerts

7590898, Sep 15, 2009

Sep 30, 2008

12/286464

Wim A. Coekaerts - San Carlos CA, US

Oracle International Corp. - Redwood Shores CA

G06F 11/00

714 48, 714 4, 709223, 709224

A heartbeat system and method is provided for a cluster system. In one embodiment, a heartbeat mechanism includes a quorum file for receiving heartbeat messages from the plurality of nodes. A network controller connects the quorum file to the plurality of nodes with a serial bus that establishes peer-to-peer and point-to-point device communication. A node map maintained by the network controller identifies active nodes based on signals from the serial bus. A status logic for determining a status of a node from the plurality of nodes by comparing heartbeat messages in the quorum file written by the node and the node map.

7451359, Nov 11, 2008

Nov 27, 2002

10/305483

Wim A. Coekaerts - San Carlos CA, US

Oracle International Corp. - Redwood Shores CA

G06F 11/00

714 48, 714 4, 709223, 709224

A heartbeat system and method is provided for a cluster system. The cluster includes a plurality of nodes. The nodes access files on one or more data storage devices over a network. The system includes a quorum file that receives and stores heartbeat messages from the plurality of nodes indicating they are active. A network controller connects the quorum file to the plurality of nodes in accordance with IEEE 1394 communication protocol.