tldr/pages/linux/btrfs-scrub.md

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# btrfs scrub
> Scrub btrfs filesystems to verify data integrity.
> It is recommended to run a scrub once a month.
> More information: <https://btrfs.wiki.kernel.org/index.php/Manpage/btrfs-scrub>.
- Start a scrub:
`sudo btrfs scrub start {{path/to/btrfs_mount}}`
- Show the status of an ongoing or last completed scrub:
`sudo btrfs scrub status {{path/to/btrfs_mount}}`
- Cancel an ongoing scrub:
`sudo btrfs scrub cancel {{path/to/btrfs_mount}}`
- Resume a previously cancelled scrub:
`sudo btrfs scrub resume {{path/to/btrfs_mount}}`
- Start a scrub, but wait until the scrub finishes before exiting:
`sudo btrfs scrub start -B {{path/to/btrfs_mount}}`
- Start a scrub in quiet mode (does not print errors or statistics):
`sudo btrfs scrub start -q {{path/to/btrfs_mount}}`