# tt_kmd_info

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## Name

### Prometheus Metric Name

```
tt_kmd_info
```

### Metric Path (tt-telemetry)

Schema:

```
{hostname}/tt_kmd_info
```

Example path:

```
bh-glx-c09u02/tt_kmd_info
```

## Description

The installed Tenstorrent kernel-mode driver (KMD) version string. The version is read from `/sys/module/tenstorrent/version` via UMD's `PCIDevice::read_kmd_version()`. This is a host-level metric that does not require device initialization; it is available whenever the KMD module is loaded. The version is re-read on every collection cycle. In Prometheus, the version string is exposed as the `version` label with a constant gauge value of 1.

## Values

**Type:** String

**Units:** None

**Allowable values:**
A semantic version string such as `"2.6.0"`. If the KMD module is not loaded or the version cannot be read, the value is `"0.0.0"`. The value is exposed via the `version` Prometheus label.

## Prometheus Labels

|Label Name|Value|
|---|---|
|hostname|The host from which the metric was collected.|
|hall|The datacenter hall where the host is located. Sourced from the Factory System Descriptor (FSD).|
|aisle|The datacenter aisle where the host is located. Sourced from the Factory System Descriptor (FSD).|
|rack|The rack number where the host is located. Sourced from the Factory System Descriptor (FSD).|
|shelf_u|The shelf U position in the rack where the host is located. Sourced from the Factory System Descriptor (FSD).|
|version|The KMD version string.|