Are there any tools out there that will echo one-way changes from one large directory (5+ million files) to another across a Windows network? I also need it to be a fairly quick sync after the initial build up. I've played around with a few tools like Microsoft SyncToy and Cobian backup but they don't seem to be built for this kinda of size.
Less than 1% of the files change every 1 hour but the problem with the design of the directory system I've inherited is that the changes can be at any position in the directory tree and there is no log of the changes so a full scan was being preformed in the past which would take about 4-5 hours.
I built a custom tool to do the sync much faster than these others but I just don't have the time to build in all the bells and whistles so I'm looking for something to do the trick in the mean time. I do plan on changing the system but at this point I'm just looking to get them synced with less lag time.
[Update] -My files are pretty small ranging from 10-30kb each -The directory tree is pretty shallow.