eBackup deduplication compression technology
As a data compression technique, deduplication eliminates redundant data by automatically finding duplicate data, leaving only one copy of the same data, and replacing other duplicate copies with pointers to a single copy. The eBackup backup management system supports deduplication technology to reduce the consumption of back-end storage space and meet the growing storage capacity requirements.
Principle
After the data is segmented, the similarity detection is performed on different data blocks, and the redundant data is eliminated by deleting the repeated data blocks (the data in the dotted line represents the repeated data).