Inotifyfs is a set of scripts, primarily on bash to allow user keep remote and local folders synced in real time in efficient way based on inotify kernel evens and function in user space.
RFC (Remote Filesystem Checker) is a set of shell (bash) script that should help System Administrators to run a filesystem-checker (afick aide or integrit) from a master-node to a set of other slave-nodes just using ssh, scp, sudo and few other commands.
PRATIMA, an Asynchronous Remote Volume Replicator for Linux:
Pratima performs online, real-time, reliable and efficient block level data replication to a remote computer over a network in both synchronous and asynchronous modes for Linux.