Linux command
btrfs-device 命令
安全
权限或系统影响较大，执行前请核对目标。
常用示例
Add
sudo btrfs device add /dev/sdb /dev/sdc path/to/filesystem
Remove
sudo btrfs device remove /dev/sdb path/to/filesystem
Example
sudo btrfs device stats path/to/filesystem
Scan
sudo btrfs device scan --all-devices
Example
sudo btrfs device usage path/to/filesystem
说明
btrfs device manages devices in a btrfs filesystem. It can add or remove devices, display statistics, and scan for btrfs filesystems. This enables dynamic resizing and RAID configuration changes.
参数
- add
- Add one or more devices to the filesystem
- remove
- Remove a device from the filesystem
- delete
- Alias for remove
- stats
- Show device error statistics
- scan
- Scan devices for btrfs filesystems
- usage
- Show detailed per-device allocation statistics
- ready
- Check if a device is ready
- -d, --all-devices
- Scan all devices for btrfs filesystems
FAQ
What is the btrfs-device command used for?
btrfs device manages devices in a btrfs filesystem. It can add or remove devices, display statistics, and scan for btrfs filesystems. This enables dynamic resizing and RAID configuration changes.
How do I run a basic btrfs-device example?
Run `sudo btrfs device add /dev/sdb /dev/sdc path/to/filesystem` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does add do in btrfs-device?
Add one or more devices to the filesystem