Method for backup and storage system

Details Method for backup and storage system Method for backup and storage system

2006-03-14

2006-03-14

Rones, Charles (Department: 2164)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C707S793000

Reexamination Certificate

active

07013317

ABSTRACT:
In a structure where first and second storage devices structure a mirrored pair, at a first time, an updating process to the second storage device is stopped, and management using first and second update-management tables is started. At a second time on or after the first time, management of the first update-management table is started from a non-updated state, and data of the second storage device, stored in the data blocks indicated by the second update-management table as being updated, is copied to a backup medium. At a third time after the second time, data of the first storage device, stored in the data blocks indicated by the second update-management table as being updated, is copied to data blocks of the second storage device corresponding to the data blocks of the first storage device.

REFERENCES:
patent: 2001/0056438 (2001-12-01), Ito
patent: 08-185346 (1996-07-01), None
patent: 2001-125815 (2001-05-01), None
patent: 2001-159993 (2001-06-01), None

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