Virtualized volume snapshot formation method

Details Virtualized volume snapshot formation method Virtualized volume snapshot formation method

2005-04-19

2005-04-19

Nguyen, Hiep T. (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S114000

Reexamination Certificate

active

06883073

ABSTRACT:
A server has management information including correspondence information between a physical storage region and a virtualized storage region, so as to provide a virtualized storage region. The server includes a unit for using the management information to provide a virtualized storage region to another host and a unit for instructing the control of the storage regions based on the virtualized storage region to a controller for a storage device for providing the physical storage region. Moreover, the controller includes a unit having whole or a part of management information including the correspondence information and performing the control of the storage device based on the virtualized storage region in response to the instruction.

REFERENCES:
patent: 5210866 (1993-05-01), Milligan et al.
patent: 6038639 (2000-03-01), O'Brien et al.
patent: 6681303 (2004-01-01), Watanabe et al.
“Virtualizing The San” Jul. 5, 2000.
JP-A-2000-132343, no date, or country code.

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