Storage control system

Electrical computers and digital processing systems: memory – Address formation – Address mapping

Reexamination Certificate

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Details

C711S112000

Reexamination Certificate

active

07415593

ABSTRACT:
A storage control system having no risk of changing the storage content of a logical volume by a data update to a virtual logical volume. A logical volume, which is not correspondent to a virtual logical volume, can be specified when defining a virtual logical volume correspondent to a logical volume. A first storage controller comprises a port capable of connecting to both a logical volume of the first storage controller, and a logical volume of a second storage controller; a virtual logical volume, which is set in association with a logical volume connected to this port; and a virtual logical volume-setting controller for controlling the setting of a virtual logical volume. The virtual logical volume-setting controller is constituted such that the virtual logical volume cannot be set in a logical volume of the first storage controller.

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patent: 2003/0221074 (2003-11-01), Satoyama et al.
patent: 1357465 (2003-10-01), None
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patent: 97/09676 (1997-03-01), None
patent: 03014910 (2003-02-01), None
patent: 03090087 (2003-10-01), None

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