Hardware status details are available in the CLI under the maintenance hardware section. Use the show command to list the status of all components. The list command will list available chassis, which can be selected and then viewed using show.
hostname:> maintenance hardware show
Chassis:
NAME STATE MANUFACTURER MODEL
chassis-000 hostname ok Oracle Oracle ZFS Storage ZS7-2
cpu-000 CPU 0 ok Intel Intel(r) Xeon(r) Gold 6140 CPU @ 2.30GHz
cpu-001 CPU 1 ok Intel Intel(r) Xeon(r) Gold 6140 CPU @ 2.30GHz
disk-000 SYS/MB/M2R0/SSD0 absent - -
disk-001 SYS/MB/M2R1/SSD0 absent - -
disk-002 HDD 0 ok HGST H7210A520SUN010T
disk-003 HDD 1 ok HGST H7210A520SUN010T
disk-004 HDD 2 absent - -
disk-005 HDD 3 absent - -
disk-006 HDD 4 absent - -
disk-007 HDD 5 absent - -
disk-008 HDD 6 absent - -
disk-009 HDD 7 absent - -
disk-010 HDD 8 absent - -
disk-011 HDD 9 absent - -
disk-012 HDD 10 absent - -
disk-013 HDD 11 absent - -
disk-014 MB/USB absent - -
fan-000 FM 0 ok Oracle 7117937
fan-001 FM 1 ok Oracle 7117937
fan-002 FM 2 ok Oracle 7117937
fan-003 FM 3 ok Oracle 7117937
memory-000 DIMM 0/7 ok Samsung 65536MB DDR4 SDRAM DIMM
memory-001 DIMM 0/6 ok Samsung 65536MB DDR4 SDRAM DIMM
memory-002 DIMM 0/9 ok Samsung 65536MB DDR4 SDRAM DIMM
memory-003 DIMM 0/8 ok Samsung 65536MB DDR4 SDRAM DIMM
memory-004 DIMM 0/4 ok Samsung 65536MB DDR4 SDRAM DIMM
memory-005 DIMM 0/5 ok Samsung 65536MB DDR4 SDRAM DIMM
...
A 5th and 6th column for serial number ("SERIAL") and revolutions per minute ("RPM") have been truncated in the above example, as has the length of this list.