filesTransferred

The number of files, objects, and directories that DataSync actually transfers over the network. This value is updated periodically during your task execution when something is read from the source and sent over the network.

If DataSync fails to transfer something, this value can be less than EstimatedFilesToTransfer. In some cases, this value can also be greater than EstimatedFilesToTransfer. This element is implementation-specific for some location types, so don't use it as an exact indication of what's transferring or to monitor your task execution.