Rsync backup software is the Software, base on the utility. It synchronizes files and directory from one location to another with minimal data transfer. It is name Rsync (remote synchronization) for Unix - like and cwrsync for Windows operating systems.

In simple phrase, this utility compute the difference between files of both locations and transfers this difference to the synchronized one. This approach give the great benefit in comparison with traditional incremental and differential stand-in, when synchronization is implement by rewriting the files of the same name.

There is no need to be a specialist to understand that rsync stand-in software help to considerably save the transfer time. In addition, it offer encryption and data compression, which serve both the security and the time economy. What in its turn allow, as all we know, to save money.

Here we are not going to discuss in detail the subject of using rsync or cwrsync for synchronization of files and folder between several servers and depict its peculiarities for different OS (Unix - Windows or Linux - Windows servers). These are certainly curious topics, but they may be attractive mostly for server administrators (with whom we will certainly discuss them some other time).

Hence let us pay our attention at implementation of rsync - based synchronization to stand-in software for Windows, because this subject will be curious and actual for users of the respective software.

The quality realisation of off - the - shelf rsync (cwrsync) solution in stand-in software on the one hand will permit to get some advantages of this technology. They are such as: fast incremental stand-in and restore, reduce in memory usage for stand-in software, and opportunity to back up not only the Windows servers, but the Unix and Linux ones as well. But on the other hand this will bring its problem too. Here are some of the probable difficulties in using rsync stand-in software:

So we see the ambiguity of using of off - the - shelf rsync (cwrsync) solution for stand-in software. But there may be another approach: use not a ready utility, but to adapt its inner algorithm to certain software. In this case an experienced developer could resolve most of the problem, and bring the power of the original utility to the rsync stand-in software.

The author of this article is a famous soft analyst specializing in stand-in and data restore software, especially for servers and network workstations. Being an active participant of different stand-in - specialized communities such as Handy Backup, he give a great consideration to the respective software brand - news.