Intelli Delta Technology for Incremental Backups

The ability to intelligently handle incremental data is a key component of any backup solution! Especially since this has huge implications on performance and infrastructural and operational costs- bandwidth and storage costs being the most crucial of these!

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!

StoreGrid's Intelli-Delta technology goes one, actually, two steps further. StoreGrid 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. StoreGrid decides on individually optimal block sizes for every single file after taking into account the original file size. This ensures that for each file, changes are examined at an 'optimized byte level'.

Additionally, StoreGrid also leverages RSYNC's powerful ROLLING CHECKSUM feature - going one more step ahead of conventional approaches to incremental backups.

For more on the RSYNC algorithm, please visit http://samba.anu.edu.au/rsync/