Dynamically upgradeable disk array system and method

Details Dynamically upgradeable disk array system and method Dynamically upgradeable disk array system and method

G - Physics

06

F

G06F 13/00 (2006.01) G06F 11/20 (2006.01) G06F 11/30 (2006.01) G06F 13/40 (2006.01) H04L 5/20 (2006.01)

Patent

CA 2264764

A dynamically upgradeable disk array chassis (10) and method for dynamically upgrading a data storage system. The dynamically upgradeable disk array chassis (10) includes a serial bus having a first bus (22) and a second bus (24). A shunt (40) connects the first bus (22) and the second bus (24) in a normal state, and has a switched state in which the first and second buses are coupled to separate outputs from the chassis. The chassis (10) includes an environmental monitor (30) which, upon connecting a new disk array chassis, communicates through a communication path (42) before switching the shunt (40) to connect the serial bus with a serial bus of a new disk array chassis. A diplexer (50) may be used for connecting the communication path (42) to the separate outputs of the shunt (40) and for combining and separating the communication path and serial path signals.

L'invention concerne un châssis de piles de disques dynamiquement évolutif (10) et un procédé permet une extension dynamique d'un système de stockage de données. Ce châssis (10) comprend un bus série comportant un premier bus (22) et un deuxième bus (24). Un shunt (40) connecte le premier bus (22) et le deuxième bus (24) à l'état normal, et présente un état commuté dans lequel le premier et le second bus sont couplés pour séparer les sorties du châssis. Le châssis (10) comprend un dispositif de surveillance d'ambiance (30) qui, lors de la connexion d'un nouveau châssis de piles de disque, communique par l'intermédiaire d'une voie de communication (42) avant de commuter le shunt (40) en vue de la connexion du bus série avec un bus série du nouveau châssis. Un diplexeur (50) peut être utilisé pour connecter la voie de communication (42) aux sorties séparées du shunt (40) et pour combiner et séparer la voie de communication et les signaux de voie série.

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