Storage system and method of producing recovery volume

Details Storage system and method of producing recovery volume Storage system and method of producing recovery volume

2006-07-11

2010-11-23

Thai, Tuan V. (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S100000, C711S154000, C711S163000

Reexamination Certificate

active

07840766

ABSTRACT:
A storage system for writing data sent from a computer to storage regions is described. The storage system includes storage regions configured to store data, and a controller coupled with the storage regions. The controller is configured to control writing of the data from the computer. The controller is further configured to set a first storage region for writing data sent from the computer to a second storage region. The controller then acquires a snapshot of the first storage region at a predetermined time, writes a snapshot journal for the snapshot to the second storage region, and manages a snapshot management table. The controller also acquires a recovery point journal when a recovery volume designated by the computer is made, and writes the recovery point journal to the second storage region.

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