Computer system, management device, and logical device...

Details Computer system, management device, and logical device... Computer system, management device, and logical device...

2006-09-19

2006-09-19

Fleming, Fritz (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output access regulation

C710S005000, C710S036000, C711S006000

Reexamination Certificate

active

07111088

ABSTRACT:
To provide an computer system including a storage system that includes a logical device logically set in a physical device, an host computer that requests the storage system for a data input/output, and a management device that manages information of components of the storage system, the host computer requesting a data input/output via a logical path serving as a communication paths with the logical device and, the some of the host computer restricted to send the data input/output request to the logical device, wherein the management device includes an information acquisition module that acquires the information of the components in the storage system, and a judging module that selects a logical device to move based on a number of logical paths set on the logical devices and a number of communication counterpart devices set through effective logical paths in the information acquired by the information acquisition module.

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