Real Time Storage Replication on Mac

Hello, I have a video playback application (Mitti), that I will be running on a redundant pair of Mac minis. Does anyone know of an application that would allow for high speed, local folder replication between a pair of Macs? We would be running a 10 gig network, and would like a single folder (containing the media assets for playback) to maintain sync between the two devices. Just to be clear: we aren't talking cloud sync here....this needs to be local and low latency.