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System diskio metricset

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System diskio metricset

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The System diskio metricset provides disk IO metrics collected from the operating system. One event is created for each disk mounted on the system.

This metricset is available on:

Linux
macOS (requires 10.10+)
Windows
FreeBSD (amd64)

Configuration

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diskio.include_devices

When the diskio metricset is enabled, you can use the diskio.include_devices option to define a list of device names to pre-filter the devices that are reported. Filters only exact matches. If not set or given [] empty array, all disk devices are returned

The following example config returns metrics for devices matching include_devices:

metricbeat.modules:
- module: system
  metricsets: ["diskio"]
  diskio.include_devices: ["sda", "sda1"]

Fields

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For a description of each field in the metricset, see the exported fields section.

Here is an example document generated by this metricset:

{
    "@timestamp": "2017-10-12T08:05:34.853Z",
    "agent": {
        "hostname": "host.example.com",
        "name": "host.example.com"
    },
    "event": {
        "dataset": "system.diskio",
        "duration": 115000,
        "module": "system"
    },
    "metricset": {
        "name": "diskio"
    },
    "service": {
        "type": "system"
    },
    "system": {
        "diskio": {
            "io": {
                "time": 656
            },
            "iostat": {
                "await": 0,
                "busy": 0,
                "queue": {
                    "avg_size": 0
                },
                "read": {
                    "await": 0,
                    "per_sec": {
                        "bytes": 0
                    },
                    "request": {
                        "merges_per_sec": 0,
                        "per_sec": 0
                    }
                },
                "request": {
                    "avg_size": 0
                },
                "service_time": 0,
                "write": {
                    "await": 0,
                    "per_sec": {
                        "bytes": 0
                    },
                    "request": {
                        "merges_per_sec": 0,
                        "per_sec": 0
                    }
                }
            },
            "name": "nvme0n1p1",
            "read": {
                "bytes": 8028160,
                "count": 3290,
                "time": 130016
            },
            "write": {
                "bytes": 5120,
                "count": 3,
                "time": 12
            }
        }
    }
}

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