SYSTEM AND METHOD FOR INDEXING A DATA ITEM IN A DATA STORAGE SYSTEM

SYSTEM AND METHOD FOR INDEXING A DATA ITEM IN A DATA STORAGE SYSTEM

A computer-implemented method for indexing a data item in a data storage system includes: dividing the data item into one or more large blocks; dividing each large block into one or more small blocks; calculating a strong hash value for each of the small blocks and storing a list of strong hash valu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Toaff, Yair, Zach, Idan, Spinadel, David, Somech, Ovad, Kuvent, Aviv, Firman, Elizabeth, Natanzon, Assaf
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:A computer-implemented method for indexing a data item in a data storage system includes: dividing the data item into one or more large blocks; dividing each large block into one or more small blocks; calculating a strong hash value for each of the small blocks and storing a list of strong hash values with a pointer to a location of the large block; from the list of strong hash values calculated for each large block, selecting one or more representative hash values for the large block; and compiling a sparse index including an entry for each large block. Each entry is based on the representative hash values and a pointer to the list of strong hash values for each large block.