Emc IP Holding Company LLC

Emc Corporation

Ronen Kalish

Renen Hallak

Kobi Luz

Ehud Rokach

Example embodiments of the present invention relate and a method and an apparatus for managing a short hash handle. The method including receiving an I/O including a first identifier for a data block and examining the first identifier in comparison with a second identifier. The data block identified in the I/O then may be managed according to the first identifier and the second identifier.

Method and apparatus for creating a short hash handle highly correlated with a globally-unique hash signature

In one aspect, a method includes receiving hash signature, determining if there is an existing hash signature that matches the hash signature received, determining if there is an existing short hash handle that matches the hash signature received, designating n-1 least significant bits of the hash signature to be n-1 least significant bits of a n-bit short hash handle if there is not an existing short hash handle that matches the hash signature received and adding a hash handle bit to the n-1 bits to form the n-bit short hash handle.

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Tel Aviv, Israel

Ronen Kalish