data deduplication
.Data Deduplication is a technique for eliminating duplicate copies of repeating number of times (the match frequency is dependent on the chunk size), the amount of data that must be stored or transferred can be greatly reduced.

data deduplication

Data Deduplication is a technique for eliminating duplicate copies of repeating a number of times (the match frequency is dependent on the chunk size), the amount of data that must be stored or transferred can be greatly reduced.action