Patent ID: 9727245
Date: 2017-08-08
CPC Classifications: G06F

Claim:
1. A method of de-duplication comprising: receiving host data from a host, the host data being accompanied by a received host logical block number (LBA) and to be stored in solid state disks (SSDs); determining whether or not the received host data is the same as an existing host data, the existing host data being identifiable by an existing host LBA; upon determining that the received host data is the same as the existing host data, indexing a first table using the existing host LBA to retrieve an intermediate LBA (iLBA); linking the iLBA with the received host LBA in the first table, to avoid a write operation to the SSDs; upon determining that the received host data is not the same as the existing host data, identifying an available iLBA; linking the received host LBA to the identified iLBA; and writing the received host data to a location within the SSDs identified by use of the iLBA.