A system includes determination of a service to perform with respect to data stored in the device, determination of a plurality of sub-services corresponding to the service, determination of an execution sequence for the plurality of sub-services, communication of the execution sequence to each of a plurality of local external devices, each of the plurality of local external devices to perform at least one of the plurality of sub-services in accordance with the execution sequence, and transmission of the data to at least a first of the plurality of local external devices.