File data replication method for quick deduplication
A technology of file data and copying method, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of uncertain distribution, reduced copying efficiency, economic loss, etc.
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[0047] A method for quickly deduplicating file data replication, including:
[0048] Fingerprint acquisition steps
[0049] Before the first target file in the storage medium is copied to the target file directory for the first time, the processor performs fingerprint calculation on the metadata information of the first target file to form an ID1 file, and The content of several file data segments of the target file is extracted at intervals according to a predetermined interval scale to perform fingerprint calculation to form an ID2 file, and the ID1 file and the ID2 file are stored in the database.
[0050] After copying the first target file to the target file directory for the first time and before copying the second target file in the storage medium to the target file directory, the processor Perform fingerprint calculation on the metadata information of the second target file to form an ID3 file, and perform fingerprint calculation on the content of several file data se...
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