Re: [BUG?] btrfs scrub -d doesn't scan all devices

[Christoph Anton Mitterer <calestyo@scientia.net>]

[-- Attachment #1: Type: text/plain, Size: 1054 bytes --]

On Sun, 2015-12-27 at 07:22 +0000, Duncan wrote:
> I'd call that NOTABUG.  As the btrfs-scrub manpage suggests:
> 
> * When you point scrub at a mountpoint, it scrubs all devices
> composing 
> that filesystem.
Uhm,.. mine doesn't contain this,... neither do those of the master or
devel branches from David's repo... or am I just blind?

Actually it says:
>DESCRIPTION
>       btrfs scrub is used to scrub a btrfs filesystem, which will read all
>       data from all disks and verify checksums.

Also, if it would allow to only selectively scrub parts of the fs (e.g.
just some devices or subpaths/subvols/files) than the whole syntax for
cancel, break, etc. would become ambiguous.

> Since /dev/disk/by-*/* are symlinks to various block-device nodes,
> it 
> follows that if you point scrub at them, only the device pointed at
> is 
> scrubbed, exactly as one might expect based on the manpage.
Sure... that was clear... but I have another manpage than yours...
perhaps some distro specific patch?

Chris.

[-- Attachment #2: smime.p7s --]
[-- Type: application/x-pkcs7-signature, Size: 5313 bytes --]