A storage subsystem records a copy of a data object on a plurality of storage devices. The storage subsystem receives a read request to read a data object. Under certain utilization conditions of the storage subsystem, a resource utilization condition satisfies a split-read criterion. In response to the resource utilization condition satisfying the split-read criterion, the storage subsystem reads at least a portion of the data object from each of the storage devices having a copy of the data object.