BTRFS

Plugin: proc.plugin Module: /sys/fs/btrfs

Overview

This integration provides usage and error statistics from the BTRFS filesystem.

This collector is supported on all platforms.

This collector supports collecting metrics from multiple instances of this integration, including remote instances.

Default Behavior

Auto-Detection

This integration doesn't support auto-detection.

Limits

The default configuration for this integration does not impose any limits on data collection.

Performance Impact

The default configuration for this integration is not expected to impose a significant performance impact on the system.

Metrics

Metrics grouped by scope.

The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.

Per btrfs filesystem

Labels:

Label	Description
filesystem_uuid	TBD
filesystem_label	TBD

Metrics:

Metric	Dimensions	Unit
btrfs.disk	unallocated, data_free, data_used, meta_free, meta_used, sys_free, sys_used	MiB
btrfs.data	free, used	MiB
btrfs.metadata	free, used, reserved	MiB
btrfs.system	free, used	MiB
btrfs.commits	commits	commits
btrfs.commits_perc_time	commits	percentage
btrfs.commit_timings	last, max	ms

Per btrfs device

Labels:

Label	Description
device_id	TBD
filesystem_uuid	TBD
filesystem_label	TBD

Metrics:

Metric	Dimensions	Unit
btrfs.device_errors	write_errs, read_errs, flush_errs, corruption_errs, generation_errs	errors

Alerts

The following alerts are available:

Alert name	On metric	Description
btrfs_allocated	btrfs.disk	percentage of allocated BTRFS physical disk space
btrfs_data	btrfs.data	utilization of BTRFS data space
btrfs_metadata	btrfs.metadata	utilization of BTRFS metadata space
btrfs_system	btrfs.system	utilization of BTRFS system space
btrfs_device_read_errors	btrfs.device_errors	number of encountered BTRFS read errors
btrfs_device_write_errors	btrfs.device_errors	number of encountered BTRFS write errors
btrfs_device_flush_errors	btrfs.device_errors	number of encountered BTRFS flush errors
btrfs_device_corruption_errors	btrfs.device_errors	number of encountered BTRFS corruption errors
btrfs_device_generation_errors	btrfs.device_errors	number of encountered BTRFS generation errors

Setup

Prerequisites

No action required.

Configuration

File

There is no configuration file.

Options

There are no configuration options.

Examples

There are no configuration examples.