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AssigneeHitachi, Ltd.
InventorsHiroshi Ohno, Kouji Arai, Toshio Nakano, Hideo Tabuchi, Akinobu Shimada, Ai Satoyama, Yasutomo Yamamoto, Yoshiaki Eguchi
Estimating the term…
A method for controlling a storage system including a host computer, and a first and a second storage control apparatuses each receiving a data input/output request from the host computer and executing a data input/output process for a storage device in response to the request, comprises connecting a first communication path between the host computer and the first apparatus; connecting a second communication path between the first apparatus and the second apparatus; receiving by the first apparatus a first data input/output request from the host computer through the first path; when the first apparatus has judged that the first request is not for the first apparatus, transmitting by the first apparatus a second data input/output request corresponding to the first request, to the second apparatus through the second path; and by the second apparatus, receiving the second request and executing a data input/output process corresponding to the second request received.
A first storage control apparatus adapted to be coupled to a plurality of storage control apparatuses, at least one of said plurality of storage control apparatuses including a plurality of storage devices and a data read/write control unit executing data read/write processes to said plurality of storage devices based on a Redundant Array of Independent Disks (RAID) scheme, said first storage control apparatus comprising:
A control unit of a first storage control apparatus adapted to be coupled to a plurality of storage control apparatuses, at least one of said plurality of storage control apparatuses including a plurality of storage devices and a data read/write control unit executing data read/write processes to said plurality of storage devices based on a Redundant Array of Independent Disks (RAID) scheme,
A control method of a first storage control apparatus adapted to be coupled to a plurality of storage control apparatuses, at least one of said plurality of storage control apparatuses including a plurality of storage devices and a data read/write control unit executing data read/write processes to said plurality of storage devices based on a Redundant Array of Independent Disks (RAID) scheme, said control method comprising the steps of:
Dependencies are inferred from the claim text.