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24 lines
827 B
Markdown
24 lines
827 B
Markdown
# btrfs device
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> Manage devices in a btrfs filesystem.
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> More information: <https://btrfs.readthedocs.io/en/latest/btrfs-device.html>.
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- Add one or more devices to a btrfs filesystem:
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`sudo btrfs {{[d|device]}} {{[a|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 {{[d|device]}} {{[rem|remove]}} {{path/to/device1|device_id1 path/to/device2|device_id2 ...}}`
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- Display error statistics:
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`sudo btrfs {{[d|device]}} {{[st|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 {{[d|device]}} {{[sc|scan]}} {{[-d|--all-devices]}}`
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- Display detailed per-disk allocation statistics:
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`sudo btrfs {{[d|device]}} {{[u|usage]}} {{path/to/btrfs_filesystem}}`
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