Applies to ONTAP 9 Tiering AFF warm primary tier FAS with ONTAP S3 cold secondary tier Optimized volume move Issue Latency during regular operations while reading from the cold tier is lower. Example:...Applies to ONTAP 9 Tiering AFF warm primary tier FAS with ONTAP S3 cold secondary tier Optimized volume move Issue Latency during regular operations while reading from the cold tier is lower. Example: qos statistics volume latency show says latency from Cloud is 8 ms. An optimized volume move is started, moving data to another aggregate or node while not reading cold tier data. Latency increases during, and after the volume move for a period of time.