Patent ID: 9218133
Filing Date: 2015-12-22
Classification: G06F

Abstract:
1. A data storage system comprising: a tape cartridge adapted to operably transfer data between the data storage system and an external computing device via execution of a plurality of input/output (I/O) commands; a commonality factoring (CF) module adapted to execute computer instructions retained in control memory to assign a CF tag to a data pattern in the transferred data; and a deduplication module adapted to execute computer instructions retained in the control memory or a different memory device, the computer instructions are arranged to determine if the data pattern corresponding to the CF tag was previously stored in the tape cartridge, the tape cartridge being physically partitioned into an addressable library partition and a differently addressable user data partition; a drive that interfaces the I/O commands with the external computing device, wherein the tape cartridge is removably mounted in the drive; a plurality of different CF tags stored in the library partition corresponding to different data patterns stored in the user data partition.