* remove redundant meta labels from SCSI metrics
* added `smartctl_device_nvme_capacity_bytes` metric
* for some devices, such as 2.5" NVMe Intel & Micron the `family` field may be empty
The `.user_capacity` exists only when NVMe have single namespace. Otherwise,
for NVMe deivces with multiple namespaces, when device name used witout
namespace number (exporter case) `.user_capacity` will be absent
```
smartctl --info --health --attributes \
--tolerance=verypermissive --nocheck=standby --format=brief --log=error \
/dev/nvme11 --json | jq '.user_capacity'
null
smartctl --info --health --attributes \
--tolerance=verypermissive --nocheck=standby --format=brief --log=error \
/dev/nvme11 --json | jq '.nvme_total_capacity'
3840755982336
```
Signed-off-by: Konstantin Shalygin <k0ste@k0ste.ru>
Prometheus naming conventions reserve `_count` for the counter in
histograms. For gauge values the naming convention is to use the plural
of the thing being counted.
Signed-off-by: SuperQ <superq@gmail.com>
The requirement from field engineers is knowledge of the form factor of the device, i.e. 3.5", 2.5"
* updated EXAMPLE.md
* fixed copy-paste issue `Starting systemd_exporter`
Signed-off-by: Konstantin Shalygin <k0ste@k0ste.ru>
