Patent ID: 8335761

Claim:
A method, comprising: changing a production site from a first node to a second node; recording a point in time, P i , of the production site failover from the first node to the second node; replicating data from the second node to a third node that is not the first node, the replicating comprising: determining a latest common point in time, P x , that metadata changes were received between the second node and the third node; adding metadata changes between the time, P x , and a latest point in time that metadata was received at the third node to a first delta marking stream on the third node, the first delta marking stream comprising differences between the third node and the second node; determining an earliest time, P L , between the time, P i , and the time, P x ; and adding metadata changes from the time, P L , to the latest point in time that metadata was received at the second node to a second delta marking stream on the second node, the second delta marking stream comprising differences between the third node and the second node.