Information processing system having volume guard function

Details Information processing system having volume guard function Information processing system having volume guard function

2007-10-30

2007-10-30

Nguyen, T (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S152000, C711S164000

Reexamination Certificate

active

11179506

ABSTRACT:
In a system comprising a first storage system providing plural first logical volumes including real logical volume and a virtual logical volume with a host, a second storage system having a second logical volume, and a management computer, when the first storage system receives an access request to the virtual logical volume, it accesses a second logical volume associated with the virtual logical volume. In this system, when the management computer receives a request to guard one of the plural first logical volumes, it checks whether a target first logical volume of the request is a real logical volume or a virtual logical volume, in case of the virtual logical volume, generates and provides a possible at least one option to guard the virtual logical volume by considering a program for volume guard, which each of the first storage system and the second storage system has.

REFERENCES:
patent: 2001/0025346 (2001-09-01), Kayashima et al.
patent: 2004/0143832 (2004-07-01), Yamamoto
patent: 2005/0021908 (2005-01-01), Ohno et al.
patent: 2000-112822 (2000-04-01), None
patent: 2004-220450 (2004-08-01), None

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