Wise words from Qu: https://www.mail-archive.com/linux-btrfs@xxxxxxxxxxxxxxx/msg82557.html --- Documentation/btrfs-scrub.asciidoc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/Documentation/btrfs-scrub.asciidoc b/Documentation/btrfs-scrub.asciidoc index 4c49269..1fc085c 100644 --- a/Documentation/btrfs-scrub.asciidoc +++ b/Documentation/btrfs-scrub.asciidoc @@ -16,7 +16,8 @@ and metadata blocks from all devices and verify checksums. Automatically repair corrupted blocks if there's a correct copy available. NOTE: Scrub is not a filesystem checker (fsck) and does not verify nor repair -structural damage in the filesystem. +structural damage in the filesystem. It only checks csum of data and tree blocks, +it doesn't ensure the content of tree blocks are OK. The user is supposed to run it manually or via a periodic system service. The recommended period is a month but could be less. The estimated device bandwidth -- 2.20.0.rc1.28.g8a4ee09a8a
