System-independent data format in a mirrored storage system environment and method for using the same
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United States of America Patent
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Jan 13, 2009
Grant Date -
N/A
app pub date -
Feb 12, 2004
filing date -
Dec 23, 2003
priority date (Note) -
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Abstract
A system for transmitting replica data between a source system and a destination system provides various standalone headers and data following headers that identify aspects of the data stream in a generalized manner. On the destination storage system, a set of hidden metadata directories (“metadirs”) are provided for storing extended attributes in association with files on the destination. The system also supports a standalone header that instructs the destination to undo a backed-up changed file in the event that the source determines that the file was modified in the midst of a backup procedure and transmission to the destination.
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