Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2009-07-02
2011-10-11
Lai, Andrew (Department: 2473)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S217000, C370S248000
Reexamination Certificate
active
08036238
ABSTRACT:
A plurality of logical units are set in an information processing device and a storage device and connected by logical paths. The information processing device monitors the path state. When a state change of a path has occurred, the information processing device searches for a normal path connected to the logical unit and decides a logical unit to be an object of the read request. The information processing device issues a data read request to the logical unit decided. Moreover, when a failure has occurred in the path, the information processing device performs an access to the logical unit by utilizing a path other than the path where the failure has occurred and another path sharing a part of the path where the failure has occurred.
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Aoki Makoto
Hayashi Takahiro
Brundidge & Stanger, P.C.
Hitachi , Ltd.
Lai Andrew
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