From mboxrd@z Thu Jan  1 00:00:00 1970
From: Josef Bacik <josef@redhat.com>
Subject: Re: 'filesystem resize max' tries to use devid 1
Date: Tue, 24 Apr 2012 11:31:15 -0400
Message-ID: <20120424153114.GD3326@localhost.localdomain>
References: <CAJwq8q6Dd-Z6z=1H5h8m9TE8aBioY9x99ZBsGWa7pRdbVtDZOQ@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Cc: linux-btrfs@vger.kernel.org, idryomov@gmail.com
To: Jeremy Atkins <antrat@gmail.com>
Return-path: <linux-btrfs-owner@vger.kernel.org>
In-Reply-To: <CAJwq8q6Dd-Z6z=1H5h8m9TE8aBioY9x99ZBsGWa7pRdbVtDZOQ@mail.gmail.com>
List-ID: <linux-btrfs.vger.kernel.org>

On Sun, Apr 22, 2012 at 11:03:06PM -0400, Jeremy Atkins wrote:
> Back story:
> I started my pool with a 200gb partition at the end of my drive (sdc5=
)
> , until I was able to clear out the data at the beginning of my drive=
=2E
>  When I was ready, I ran `btrfs dev add /dev/sdc4 /` then `btrfs dev
> del /dev/sdc5 /`,
>=20
> $ sudo btrfs fi resize max /
> Resize '/' of 'max'
> ERROR: unable to resize '/' - Invalid argument
>=20
> in dmesg i see:
> [ =A0 72.729685] btrfs: resizer unable to find device 1
>=20
> $ sudo btrfs fi df /
> Data: total=3D34.00GB, used=3D17.79GB
> System, DUP: total=3D64.00MB, used=3D20.00KB
> Metadata, DUP: total=3D33.50GB, used=3D394.93MB
>=20
> $ sudo btrfs fi sh
> Label: none =A0uuid: b0ad55e2-09e0-4658-8cab-d2e11ba03753
> =A0 =A0 =A0 =A0 Total devices 1 FS bytes used 17.18GB
> =A0 =A0 =A0 =A0 devid =A0 =A02 size 1.62TB used 101.12GB path /dev/sd=
c4
>=20
>=20
> $ uname -r
> 3.3.2-1.fc16.x86_64
>=20
> btrfs-progs version is current git master ( commit 1957076 )
>=20
> After writing this email, and searching around the wiki some, I
> discovered the command to resize specific devids,
>=20
> [antrat@tbox ~]$ sudo btrfs fi resize 2:max /
> Resize '/' of '2:max'
>=20
> and in dmesg:
> [ 1661.933884] btrfs: resizing devid 2
> [ 1661.933895] btrfs: new size for /dev/sdc4 is 1995564908544

Hrm, if we're using filesystem resize max we should probably just max o=
ut all
the devices and not require one specific device, what do you think Ilya=
?

Josef
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