Storage system and storage system control method

Details Storage system and storage system control method Storage system and storage system control method

2007-09-11

2007-09-11

Rones, Charles (Department: 2164)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C714S006130

Reexamination Certificate

active

10915557

ABSTRACT:
The present invention prevents erroneous control performed on the basis of volumes storing old data in cases where trouble occurs in remote copying. The storage system is constructed by connecting a first site1A and second site1B with networks CN1and CN2. Reference designating parts5are disposed in respective host computers3A1, 3B1and the like. In cases where trouble occurs in remote copying, the reference designating parts5specify and manage the site (volume) in which the most recent data is stored. As a result, failover or the like can be performed within a site that can utilize the most recent data following the occurrence of trouble in remote copying.

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patent: 2005/0154937 (2005-07-01), Achiwa

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