Is Nine Technology faster than the competition?
Nine Technology’s Powered By Nine™ process works like this: files are broken down to the block level. Each block on the system is checked against one another. All the unique blocks are then checked against the back-end infrastructure’s blocks. Only the blocks that are unique across the entire back-end (that is, against every client and end-user backing up with that provider) are sent across the wire for protection.
When it comes time to restore, the procedure reverses. The client program specifies what files need to be returned to the end-user, and block signature libraries determine which blocks on the back-end comprise those files. The blocks then return on the wire and are reassembled on the end-user’s computer.
This means that instead of every file being completely resaved, only the changes are saved each time. This takes less time yet retains the integrity of the entire file. Previous versions are retained indefinitely, so if you need a version from six months ago - you can still get it!