Rsync: Preserve / Copy difficult Links ( Backup Rsnapshot Directory Tree )

I'm employing rsnapshot filesystem snapshot utility to make incremental snapshots of local and remote filesystems for 10 production servers running on RHEL 5.x system. The rsnapshot commands makes extensive use of difficult links, so if the file doesn't change, the next snapshot is simply a difficult link to the exact same file. How do I use the rsync command to copy my the whole snapshot directory /raid6/rsnapshot (around 4TB) to a remote server?  See More..