Patent ID: 8549348

Claim:
A method for coordinated disaster recovery by a processor device in a computing storage environment, the method comprising: performing a reconciliation process for resolving intersecting and non-intersecting data amongst a plurality of disaster recovery systems for a takeover operation; and coordinating an ownership synchronization process for a plurality of cartridges via the reconciliation process at the plurality of disaster recovery systems, wherein the plurality of disaster recovery systems continue as at least one of a replication target for a plurality of source systems and as a backup target for a plurality of local backup applications; wherein the takeover operation includes one of: activating a disaster recovery (DR) mode for at least one remote system of the source system, wherein the at least one remote system of the at least one of the plurality of source systems declared offline becoming part of the plurality of disaster recovery stems, allowing the plurality of disaster recovery systems to sequentially perform the takeover operation, determining the takeover operation may be performed for the at least one of the plurality of source systems declared offline, sending a request in a replication grid via a replication grid manager for a first list from the at least one of the plurality of source systems declared offline indicating ownership of the plurality of cartridges by a plurality of replication grid members, building a second list of each of the plurality of cartridges needed for the takeover operations, identifying at least one of the plurality of cartridges as a candidate for taking over of the at least one of the plurality of cartridges for ownership by comparing the first list with the second list, transferring the second list to the plurality of disaster recover systems, switching the ownership of the at least one of the plurality of cartridges, and creating and continuing at least a portion of a production site at each of a plurality of disaster recovery systems of the at least one of the plurality of source systems declared offline.