What’s new in Update 6 deduplication

Starting with Update 6, Acronis Backup Storage Node has a new indexing algorithm for server-side deduplication and a new format of the deduplication database. As a result, the following improvements are achieved:

• Less RAM is required per terabyte of unique data: 3 GB instead of 16 GB.
• Performance degradation does not occur as the amount of stored unique data grows.

For example, the minimum of 8 GB RAM enables you to back up and recover (at a disk level) 2.6 TB of unique data, without any performance degradation. For file-level backups, the limit is more than 12 TB. When the data reaches this size, the indexing activity fails. The error message contains a recommendation to increase the RAM. However, the backups continue to run. If you add more RAM to the storage node, the indexing will run again after the next backup.

New configuration parameters enable you to choose between the old and new indexing algorithms and control the storage node memory allocation.