How does ACC Data Vault do incremental backups?
Our Intelli-Delta technology, based on the powerful & proven RSYNC algorithm, ensures that after the first ‘seed’ backup, only ‘optimized byte level’ changes in individual files & folders are backed up thereafter. Most backup software implement incremental backups in fixed block sizes (eg. 4K blocks). In effect, they divide files into blocks of a pre decided size, examine CHECKSUMS of blocks that are detected to have changed and retransmit the changed blocks! ACC Data Vault’s Intelli-Delta technology goes one, actually, two steps further. ACC Data Vault does not implement pre decided block sizes as this is often sub-optimal. For a small file, the block size may be too large and hence translate to a larger amount of data being sent than what’s required. For very large files, a small block size translates to performance degradation. ACC Data Vault decides on individually optimal block sizes for every single file after taking into account the original file size. This ensures that for each
