BTRFS
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.
Setup
Prerequisites
No action required.
Configuration
File
There is no configuration file.
Options
There are no configuration options.
Examples
There are no configuration examples.
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 |