Three data center remote copy system with journaling

Details Three data center remote copy system with journaling Three data center remote copy system with journaling

2006-06-20

2006-06-20

Vaughn, Jr., William C. (Department: 2144)

Electrical computers and digital processing systems: multicomput

Computer-to-computer data modifying

C709S217000, C707S793000

Reexamination Certificate

active

07065589

ABSTRACT:
A remote copy system includes a first storage system including a first storage controller and a first data volume. The first storage controller is configured to control data access requests to the first data volume. The first storage system is configured to store write data in the first data volume upon receiving a write request from a first host associated with the first storage system and generate a journal including control data and journal data. A second storage system includes a journal volume and configured to receive and store the journal generated by the first storage system in the journal volume. A third storage system includes a second data volume and configured to receive the journal from the second storage system and store the journal data of the journal to the second storage system according to information provided in the control data.

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