# Hardware ## Hardware Attributes Attributes for hardware. | Attribute | Type | Description | Examples | Stability | | ----------- | ------ | ---------------------------------------------------------------------------------------------------------------- | ----------------------------------- | ---------------------------------------------------------------- | | `hw.id` | string | An identifier for the hardware component, unique within the monitored host | `win32battery_battery_testsysa33_1` |  | | `hw.name` | string | An easily-recognizable name for the hardware component | `eth0` |  | | `hw.parent` | string | Unique identifier of the parent component (typically the `hw.id` attribute of the enclosure, or disk controller) | `dellStorage_perc_0` |  | | `hw.state` | string | The current state of the component | `ok`; `degraded`; `failed` |  | | `hw.type` | string | Type of the component [1] | `battery`; `cpu`; `disk_controller` |  | **[1]:** Describes the category of the hardware component for which `hw.state` is being reported. For example, `hw.type=temperature` along with `hw.state=degraded` would indicate that the temperature of the hardware component has been reported as `degraded`. `hw.state` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used. | Value | Description | Stability | | ---------- | ----------- | ---------------------------------------------------------------- | | `degraded` | Degraded |  | | `failed` | Failed |  | | `ok` | Ok |  | `hw.type` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used. | Value | Description | Stability | | ----------------- | --------------- | ---------------------------------------------------------------- | | `battery` | Battery |  | | `cpu` | CPU |  | | `disk_controller` | Disk controller |  | | `enclosure` | Enclosure |  | | `fan` | Fan |  | | `gpu` | GPU |  | | `logical_disk` | Logical disk |  | | `memory` | Memory |  | | `network` | Network |  | | `physical_disk` | Physical disk |  | | `power_supply` | Power supply |  | | `tape_drive` | Tape drive |  | | `temperature` | Temperature |  | | `voltage` | Voltage |  |