# tt_all_devices_accessible

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## Name

### Prometheus Metric Name

```
tt_all_devices_accessible
```

### Metric Path (tt-telemetry)

Schema:

```
{hostname}/telemetry/tt_all_devices_accessible
```

Example path:

```
bh-glx-c09u02/telemetry/tt_all_devices_accessible
```

## Description

Whether all devices on this host are accessible and responding to telemetry queries. This provides a system-wide accessibility indicator.

## Values

**Type:** Boolean

**Units:** None

**Allowable values:**
- **True (1)**: All devices are accessible.
- **False (0)**: One or more devices are not accessible.

## 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).|