Method and system for the fast backup and transmission of data
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United States of America Patent
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Apr 8, 2003
Grant Date -
N/A
app pub date -
Aug 7, 2000
filing date -
Aug 7, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In accordance with the present invention, the fastest possible one-to-one copying of data files which are to be backed up is performed from a source storage medium to a target storage medium. The data files include usable data and management data. After the copying, data held on the source storage medium is accessible to users during the backup. To perform the backup, a record table or synonym list provides access to the files which have been copied. From the record table, management data is temporarily replaced in order to meet access requirements for opening the copied data files at the target storage medium. The copied management data and useful data on the target storage medium remain unchanged. Advantageously, copied data files on the target storage medium can no longer be changed after copying and apart from the authorized backup program, no application can read the copied data files from the target storage medium.
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