1. A computer-implemented method, comprising: receiving an event notification for a pair of cluster nodes having a first cluster node and a second cluster node, the event notification indicating an occurrence of a takeover event or a giveback event; suspending copying of information from a source logical unit to a target logical unit; transferring one or more processes from the first cluster node to the second cluster node; and resuming importation of information from the source logical unit to the target logical unit.