Byte-level incremental replication is very useful feature that enables very fast backups of your data.
First time all data will be transferred completely – the next replication checks the checksum of the data and copies just the changed bytes of the file.
Example : if you have an exel file of 10 MB size and you only change one single entry …
euroNAS will just transfer the changed bytes of your exel file (just few kilobytes) and will not copy the whole 10 MB accross the network.
This saves a lot of bandwith and increases the backup speed.
Of course the backup file is still identical to the original file.