btrfs balance

linux

Balance block groups on a btrfs filesystem.

Options (2)

boolean

Show the status of a running or paused balance operation

Example: sudo btrfs {{[b|balance]}} status {{path/to/btrfs_filesystem}}

--bgboolean

Balance data block groups which are less than 15% utilized, running the operation in the background

Example: sudo btrfs {{[b|balance]}} start {{[--bg|--background]}} -dusage={{15}} {{path/to/btrfs_filesystem}}

Show the status of a running or paused balance operation

sudo btrfs [b|balance] status path/to/btrfs_filesystem

Balance all block groups (slow; rewrites all blocks in filesystem)

sudo btrfs [b|balance] start path/to/btrfs_filesystem

Balance data block groups which are less than 15% utilized, running the operation in the background

sudo btrfs [b|balance] start [--bg|--background] -dusage=15 path/to/btrfs_filesystem

Balance a max of 10 metadata chunks with less than 20% utilization and at least 1 chunk on a given device `devid` (see `btrfs filesystem show`)

sudo btrfs [b|balance] start -musage=20,limit=10,devid=devid path/to/btrfs_filesystem

Convert data blocks to the raid6 and metadata to raid1c3 (see mkfs.btrfs(8) for profiles)

sudo btrfs [b|balance] start -dconvert=raid6 -mconvert=raid1c3 path/to/btrfs_filesystem

Convert data blocks to raid1, skipping already converted chunks (e.g. after a previous cancelled conversion operation)

sudo btrfs [b|balance] start -dconvert=raid1,soft path/to/btrfs_filesystem

Cancel, pause, or resume a running or paused balance operation

sudo btrfs [b|balance] cancel|pause|resume path/to/btrfs_filesystem