EXPANDER TO CONTROL MULTIPATHS IN A STORAGE NETWORK

摘要

A device is provided including a first SAS expander coupling a SAS initiator and the first port of a SAS target and a second SAS expander coupling the SAS initiator and the second port of the SAS target. The first SAS expander notifies the SAS initiator of a virtual expander address instead of its SAS address and notifies the SAS initiator of a virtual target port address instead of a SAS address of the first port. The second SAS expander notifies the SAS initiator of the virtual expander address instead of its SAS address, and notifies the SAS initiator of the virtual target port address instead of a SAS address of the second port such that the SAS initiator recognizes a single SAS expander coupled to a wide port of the SAS initiator and that the SAS target is connected to the single SAS expander through a single port.