Computer system and method of reproducing data for the system

Details Computer system and method of reproducing data for the system Computer system and method of reproducing data for the system

2006-01-31

2009-12-01

Vo, Tim T. (Department: 2168)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C707S793000, C707S793000

Reexamination Certificate

active

07627610

ABSTRACT:
A computer system includes a first storage system having a first logical volume; a second storage system connected to the first storage system and having a second logical volume and a third logical volume; and a superior device connected to the first storage system. The superior device includes a transmitter. The first storage system includes a first processing unit that records data in the first logical volume and generates update data including the data. The second storage system includes a power supply control unit that turns on a storage device which forms the second logical volume and an arbitration unit that records the update data in the second logical volume, at a timing when the update data is received from the first storage system, if the storage device which forms the second logical volume is turned off. The second storage system includes a second processing unit.

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