Data processing: database and file management or data structures – Database design – Data structure types
Patent
1996-05-31
1999-01-05
Black, Thomas G.
Data processing: database and file management or data structures
Database design
Data structure types
39518204, 707202, G06F 1730
Patent
active
058572082
ABSTRACT:
A data network with a remote data facility for providing redundant data storage and for enabling concurrent point-in-time backup operations. A local data processing system with a data facility stores a data base and processes applications. A second system, physically separated from the first system, includes a data facility that normally mirrors the data in the first system. In a backup mode, the second system is enabled to transfer data from its data facility to a backup facility concurrently with, but independently of, the operation of the first system. On completion of the backup operation, the second system reconnects with and synchronizes with the first system thereby to reestablish the mirroring operation of the second system.
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Lomet et al. "Exploiting A History Database for Backup", International Conference on Very Large Data Bases, v19, pp. 380-390, 93.
Black Thomas G.
EMC Corporation
Rones Charles L.
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