Storage capacity for most SMBs is limited. However, the amount of data generated, transferred and stored is steadily growing in size and unnecessary duplicates. While the 3-2-1 Golden Rule of Backup dictates that you need to have at least three copies of data on two different media types and one copy stored off-site, anything beyond that might be costing you more than you realize. Data deduplication refers to the process of eliminating duplicate data in a data set by deleting unneeded copies. It enhances your backup strategy by efficiently optimizing storage capacity while saving considerable money in the long run.