Invention Grant
US09576040B1 N-site asynchronous replication 有权
N站点异步复制

N-site asynchronous replication
Abstract:
A computing system includes at least one source data center that generates data and a plurality of recovery groups, coupled to the at least one source data center, where each of the recovery groups includes a synchronous data center that receives synchronous data from the at least one source data center and includes an asynchronous data center that receives asynchronous data from the at least one source data center. Cycle switching for asynchronous data transfer is coordinated by the at least one source data center for a first subset of recovery groups containing at least two of the recovery groups. The computing system may also include a second subset of the recovery groups, different from the first subset, where cycle switching for asynchronous data transfer is coordinated by the at least one source data center for the second subset.
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