http://www.macnn.com/articles/04/09/29/replication.for.mac.os.x/
Mac OS X Server support added to replication solution
updated 10:20 am EDT, Wed September 29, 2004
Replication for Mac OS X
Constant Data has added Mac OS X Server support to its that provides automatic point-in-time disk-based backups. OnDemand Replicator installs on existing Apple Mac OS X servers to provide automatic data replication in mixed server environments including Linux, Sun-Solaris, IBM AIX and Apple Mac OS X platforms. It preserves resource forks and enables legacy applications and files to be seamlessly replicated to other servers, replicates both, data and metadata of files for complete recovery in case of a disaster, and provides flexible modes of replication (1-1; 1-N; N-1; M-N; unidirectional or bidirectional).
