I have a Windows 2008 Server and a RedHat Server in different locations communicating via IPSec VPN. Each night I backup certain folders on one server and push to the other server vice versa. Currently I use SecondCopy by Centered systems running on the Windows 2008 Server that will check for any changed or new files, and only transfer those detected changed or new files. I also have the ability to keep the last 25 iterations of that changed file.
I am looking for a different product. SecondCopy transfers the entire file not bit level changes and very often the files are very large 300-400 megs each and only partially compressible. The other issue is SecondCopy is kind of problematic with its Window Service and I have never found it completely reliable.
My requirements are:
Windows 2008 compatible
Keep / purge up to 5 different file iterations