Patent ID: 9720752
Date: 2017-08-01
CPC Classifications: G06F

Claim:
1. A method, comprising: identifying, by a processing component, information, of a write request, to write to a first cluster and a second cluster, wherein the write request targets the first cluster and is replicated as a replicated write request to the second cluster; determining that a failure event has occurred resulting in unsynchronized information between the first cluster and the second cluster, the unsynchronized information comprising dirty region information; and performing a resynchronization operation to synchronize the unsynchronized information between the first cluster and the second cluster based on log information in a dirty region log for the dirty region information, wherein the dirty region log is used by the resynchronization operation to synchronize replicated data, successfully written to the second cluster by the replicated write request, from the second cluster to the first cluster where the write request was not successfully completed at the first cluster.