Flexible remote data mirroring
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United States of America Patent
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Apr 10, 2007
Issued Date -
N/A
app pub date -
Jun 2, 2001
filing date -
Nov 11, 1999
priority date (Note) -
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status (Latency Note)
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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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