Delta Copies and Compression in Synchronisation

File transfers must be efficient when synchronising files over WAN links. This includes transferring files to cloud providers such as Azure or Amazon AWS. Data sets continue to grow and upload speeds of Internet connections have not always kept up. An efficient file synchronisation application like SureSync is a critical part of your network infrastructure when you have a need to share files between multiple office locations.

The Communications Agent (included in SureSync Pro & Collaboration) offers a number of performance enhancing features that can be used to perform critical file transfers as efficiently as possible. Important features include:

Change Journal Support
When synchronising via UNC path, a folder structure must be completely scanned each time a Job is run to detect change. When scanning over a connection with latency, this scan can significantly slow down processing. With the Communications Agent, the NTFS Change Journal is used to minimise scanning. With the Change Journal, a full scan is not needed each time a Job is run and subfolder scans are used only when optimal. This one feature alone will significantly increase the speed of your synchronisation and replication jobs.
 

Delta Copies
The Communications Agent will utilize Microsoft’s Remote Differential Compression (RDC) functionality to copy only the changed portions of a file when replacing a file with an updated version. Copying only the changes can greatly reduce the amount of bandwidth needed for that file transfer.

Compression 
The Communications Agent can compress the data stream during transmission to further optimise file transmissions. The compression routines will cause the Communications Agent to use some CPU time to process the compression while reducing the amount of data that needs to be transferred across slower connections.

SureSync is a feature rich enterprise grade application designed to make file synchronisation and replication tasks efficient and as easy as possible. The Communications Agent unlocks powerful benefits when transferring files over WAN connections. If you have any questions, please contact the Open Seas team for further details.

Information supplied by Software Pursuits