minor_changes: - na_ontap_volume_efficiency - new option to allow volume efficiency to be started and stopped 'volume_efficiency'. - na_ontap_volume_efficiency - new option 'start_ve_scan_all' scan the entire volume without applying share block optimization. - na_ontap_volume_efficiency - new option 'start_ve_build_metadata' scan the entire and generate fingerprint database. - na_ontap_volume_efficiency - new option 'start_ve_delete_checkpoint' delete checkpoint and start the operation from the begining. - na_ontap_volume_efficiency - new option 'start_ve_queue_operation' queue if an exisitng operation is already running. - na_ontap_volume_efficiency - new option 'start_ve_scan_old_data' scan the file system to process all the existing data. - na_ontap_volume_efficiency - new option 'start_ve_qos_policy' defines the QoS policy for the operation. - na_ontap_volume_efficiency - new option 'stop_ve_all_operations' all running and queued operations to be stopped.