Note: The Volume latency(WAFL latency) is only a subset of the LUN latency, so it’s the expected behavior to see a lower Volume latency compared to the LUN latency, this article focuses on the scenari...Note: The Volume latency(WAFL latency) is only a subset of the LUN latency, so it’s the expected behavior to see a lower Volume latency compared to the LUN latency, this article focuses on the scenarios where LUN latency is significantly higher than Volume latency LUN latency(iSCSI latency or FCP latency) is measured from when the first PDU of the command is fully received, until the time the last PDU of the response is sent to the output queue of ONTAP.