VM Backup Size Reduction
NAKIVO Backup & Replication uses data compression and data deduplication to reduce the amount of space used by VM backups. While compression reduces the data size, deduplication ensures that only unique data blocks are saved to the backup repository:
Full Synthetic Data Storage
NAKIVO Backup & Replication uses full synthetic mode to store VM backups. After each job run, the product creates a recovery point – a set of references to data blocks, which are required to reconstruct the entire VM. For example, if NAKIVO Backup & Replication determines that the amount of changes on a 100 GB VM is just 1 MB, only 1 MB of data will be transferred to the backup repository, but the created recovery point will reference all data blocks (from previous job runs) which are required to restore the entire 100 GB VM. With this approach, each recovery point “knows” all data blocks that are needed for recovery, so there is no need to apply increments one by one to get to a particular recovery point or periodically transform backed up data blocks.