Volume moving

摘要

A computer implemented method, system, and computer program product for moving a virtual volume from a first consistency group to a second consistency group in continuous replication without loss of a journal, wherein the volume is being replicated, the method comprising notifying a splitter that the volume is being moved, creating a bookmark, and moving the volume from the first virtual consistency group to the second virtual consistency group.

主权项

1. A computer implemented method for moving replication of a virtual volume from being replicated to a first virtual consistency group to a virtual second consistency group, the computer implemented method comprising:
notifying a splitter running in a hypervisor that replication of the virtual volume managed by the hypervisor is being removed from being replicated to the first virtual consistency group and the virtual volume is being added to a second virtual consistency group to be replicated by the second virtual consistency group; wherein a virtual consistency group contains a replication set; wherein the replication set is an association between a set of source volumes and a set of replica volumes; wherein before the virtual volume is removed the splitter intercepts IO written to the virtual volume and sends a copy of the IO to the first virtual consistency group managed by a first virtual data protection appliance; wherein each virtual consistency group contains one or more replica volumes corresponding to one or more virtual volumes; wherein the one or more virtual volumes are being replicated to the one or more replica volumes of the virtual consistency group; flushing IO for the first virtual consistency group; creating a snapshot of the virtual volume at a replica site; wherein the first virtual consistency group is located at the replica site, once all the IO is flushed to a replica of the virtual volume in the first virtual consistency group; creating a bookmark; wherein the bookmark indicates that the virtual volume was removed from the first virtual consistency group; wherein the bookmark represents a consistent point in time for the virtual volume removed from the first virtual consistency group; and moving replication of the virtual volume from the first virtual consistency group to the second virtual consistency group; wherein moving the virtual volume from the first virtual consistency group to the second virtual consistency group causes the copy of the IO split from the virtual volume to be sent to the second virtual consistency group by reconfiguring the splitter to send IO from the virtual volume to the second virtual consistency group.