/dev/nvd0 smartctl 7.1 2019-12-30 r5022 [FreeBSD 12.1-STABLE-HBSD amd64] (local build) Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org /dev/nvd0: To monitor NVMe disks use /dev/nvme* device names Please specify device type with the -d option. Use smartctl -h to get a usage summary /dev/nvd1 smartctl 7.1 2019-12-30 r5022 [FreeBSD 12.1-STABLE-HBSD amd64] (local build) Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org /dev/nvd1: To monitor NVMe disks use /dev/nvme* device names Please specify device type with the -d option. Use smartctl -h to get a usage summary