Patent ID: 9747047
Date: 2017-08-29
CPC Classifications: G06F

Claim:
1. A computer program product for copying data in a storage computing environment having a plurality of storage servers, wherein the computer program product comprises a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause operations, the operations comprising: establishing a plurality of source copy relationships, wherein each of the source copy relationships is from a source storage to one of a plurality of source copy storages, wherein data is copied from the source storage to the source copy storages in the source copy relationships to provide a mirror copy of data at the source storage at the source copy storages; establishing a plurality of target copy relationships, wherein each of the target copy relationships is from a target storage to one of a plurality of target copy storages, wherein data is copied from the target storage to the target copy storages to provide a mirror copy at the target copy storage; maintaining, for each of the source and target copy relationships, an indicator indicating whether to use a first type of copy operation; determining from the indicator the source and target copy relationships indicating to use the first type of copy operation; using the first type of copy operation to copy data from the source storage to the target storage; using the first type of copy operation to copy data from the source copy storage to the target copy storage for the determined source and target copy relationships having the indicator set to use the first type of copy operation in response to using the first type of copy operation to copy data from the source storage to the target storage; and using a second type of copy operation to copy data from the source storage to the source copy storage and from the target storage to the target copy storage in the source and target relationships having the indicator set to not use the first type of copy operation.