Systems and methods in accordance with embodiments are provided for the
replication of data from virtual logical units to remote virtual logical
units. Change logs can be provided at a primary storage switch including
a primary VLU to indicate changes made to the primary VLU between
replications. The change log can also be used to resynchronize a member
split from the primary VLU during a replication operation. Members can be
split from the primary VLU and used in a split virtual logical unit at
the primary VLU for replication. The remaining member(s) of the primary
VLU can be used to maintain the primary VLU online for host devices
during the replication operation. A remote VLU at a remote storage switch
can be exported as a physical logical unit to the primary storage switch
where it is provisioned for a member of a replication VLU at the primary
storage switch.