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AssigneeNEC Corporation
InventorSetsuko Fujitani
Estimating the term…
A disc array connecting system in which a malfunctioning device can be identified easily to render it possible to shorten the time involved in identification processing. A switch circuit 12 in an FC-AL concentrator 1 interconnects an initiator host 2 and plural target disc arrays 3-1 to 3-3. A malfunction detection circuit 11 detects a malfunction occurring in a network to which are interconnected the initiator host 2 and the plural target disc arrays 3-1 to 3-3. A switch control circuit 10 control the switch circuit 12 and, as it disconnects only a malfunctioning device from the system, sequentially and individuality interconnects the target disc arrays 3-1 to 3-3 to the initiator host 2. It is possible to identify or detect a malfunctioning device from the state of connection in the switch circuit 12.
A disc array connecting system in which a host device and a plurality of disc array devices are connected to a concentrator to interconnect the host device and the disc array devices in a loop logically, wherein said concentrator includes a switching circuit which interconnects said host device and said plural disc array devices, and a controller which controls said switch circuit so that, on occurrence of a malfunction, the switch circuit sequentially connects each of said disc array devices to said host to identify malfunctioning disc array devices, and disconnects any identified malfunctioning disc array devices from the host.
A method of detecting a malfunctioning device in a disc array connecting system in which a host device and a plurality of disc array devices are connected to a concentrator to interconnect the host device and the disc array devices in a loop logically, wherein the method comprises:
For use in a disc array connecting system in which a host device and a plurality of disc array devices are connected to a concentrator to interconnect the host device and the disc array devices in a loop logically, a computer readable medium storing a malfunctioning device detection control program adapted to cause the concentrator to detect a malfunctioning device,
Dependencies are inferred from the claim text.