Flexible remote data mirroring

Details Flexible remote data mirroring Flexible remote data mirroring

2011-05-10

2011-05-10

Lin, Wen-Tai (Department: 2454)

Electrical computers and digital processing systems: multicomput

Remote data accessing

C711S161000, C714S004110

Reexamination Certificate

active

07941501

ABSTRACT:
Methods, systems, and configured storage media are provided for flexible data mirroring. In particular, the invention provides local-remote role reversal, implementation of hot standby server status through a “media not ready” signal, several alternate buffer contents and buffering schemes, transactioning, many-to-one mirroring through use of “virtual” remote mirroring units, identification of frequently accessed data without application-specific knowledge but based instead on an application's logged and analyzed behavior, and use of the secondary server in a non-authoritative manner.

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