2021-02-03 11:48:27 +00:00
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# btrfs device
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> Manage devices in a btrfs filesystem.
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2022-11-15 11:50:15 +00:00
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> More information: <https://btrfs.readthedocs.io/en/latest/btrfs-device.html>.
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2021-02-03 11:48:27 +00:00
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- Add one or more devices to a btrfs filesystem:
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`sudo btrfs device add {{path/to/block_device1}} [{{path/to/block_device2}}] {{path/to/btrfs_filesystem}}`
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- Remove a device from a btrfs filesystem:
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`sudo btrfs device remove {{path/to/device|device_id}} [{{...}}]`
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- Display error statistics:
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`sudo btrfs device stats {{path/to/btrfs_filesystem}}`
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- Scan all disks and inform the kernel of all detected btrfs filesystems:
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`sudo btrfs device scan --all-devices`
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- Display detailed per-disk allocation statistics:
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`sudo btrfs device usage {{path/to/btrfs_filesystem}}`
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