Method and device for deleting repeating data
The embodiment of the invention provides a method and device for deleting repeating data. The method comprises the step of establishing a fingerprint library according to fingerprints corresponding to data blocks of an originally received first mirror image document, wherein the first mirror image d...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The embodiment of the invention provides a method and device for deleting repeating data. The method comprises the step of establishing a fingerprint library according to fingerprints corresponding to data blocks of an originally received first mirror image document, wherein the first mirror image document is an originally received mirror image document of a virtual machine; the step of dividing the fingerprint library into at least one fingerprint module, wherein each fingerprint module corresponds to one operation system type; the step of receiving a second mirror image document, and calling the fingerprint module corresponding to the operation system type of the second mirror image document; the step of obtaining the fingerprints corresponding to the data blocks of the second mirror image document; the step of comparing the obtained fingerprints with the fingerprints of the called fingerprint module one by one and deleting the data blocks corresponding to the fingerprints repeated with the fingerprints in |
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