The Device-Mapper, as a general purpose mapping subsystem, is part of the Linux kernel since back in the 2.5 development cycle being shared by applications such as LVM2, dmraid, kpartx, multipathd etc. Details of any particular mapping (e.g. mirrored) are being abstracted via pluggable mapping targets (i.e. kernel modules), hence enabling addition of new mappings to a running system. A new target, the author has been working on recently, is the Replicator Target to cope with disaster recovery requirements in Enterprises. It allows for remote data replication of arbitrary groups of block devices as a single, write-ordered entity to multiple remote sites, supports synchronous and asynchronous replication and fallbehind thresholds to switch from asynchronous to synchronous mode beside other features. The talk will cover general requirements for data replication and the functionality being provided by this new target.