Information processing system and access method

Details Information processing system and access method Information processing system and access method

2005-01-26

2009-08-18

Nguyen, Hanh (Department: 2416)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

Reexamination Certificate

active

07577158

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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