tldr/pages/linux/bcachefs-device.md

bcachefs device

Manage devices within a running bcachefs filesystem. More information: https://bcachefs-docs.readthedocs.io/en/latest/mgmt-devicemanagement.html.

• Format and add a new device to an existing filesystem.:

sudo bcachefs device add --label={{group}}.{{name}} {{path/to/mountpoint}} {{path/to/device}}

• Migrate data off a device to prepare for removal:

bcachefs device evacuate {{path/to/device}}

• Permanently remove a device from a filesystem:

bcachefs device remove {{path/to/device}}