From: Andrei Borzenkov <arvidjaar@gmail.com>
To: Pete <pete@petezilla.co.uk>
Cc: Linux BTRFS Mailinglist <linux-btrfs@vger.kernel.org>
Subject: Re: Balance conversion to metadata RAID1, data RAID1 leaves some metadata as DUP
Date: Mon, 9 Sep 2019 11:28:00 +0300 [thread overview]
Message-ID: <CAA91j0W1V0oRTKNy8BYDBbUbZEfbTZaxpqQnUm2tZBGxV1nV+Q@mail.gmail.com> (raw)
In-Reply-To: <eda2fb2a-c657-5e4a-8d08-1bf57b57dd3b@petezilla.co.uk>
On Mon, Sep 9, 2019 at 11:03 AM Pete <pete@petezilla.co.uk> wrote:
>
> I recently recovered created a fresh filesystem on one disk and
> recovered from backups with data as SINGLE and metadata as DUP. I added
> a second disk yesterday and ran a balance with -dconvert=raid1
> -mconvert=raid1. I did reboot during the process for a couple of
> reasons, putting the sides on the PC case, putting it back under the
> desk and I updated the kernel from 5.3.9 to 5.2.13 at some point during
> this process. Balance resumed as one would expect. Balance has now
> completed:
>
> root@phoenix:~# btrfs balance status /home_data
> No balance found on '/home_data'
>
> However, some metadata remains as DUP which does not seem right:
>
> root@phoenix:~# btrfs fi usage /home_data/
> Overall:
> Device size: 10.92TiB
> Device allocated: 4.69TiB
> Device unallocated: 6.23TiB
> Device missing: 0.00B
> Used: 4.61TiB
> Free (estimated): 3.15TiB (min: 3.15TiB)
> Data ratio: 2.00
> Metadata ratio: 2.00
> Global reserve: 512.00MiB (used: 0.00B)
>
> Data,RAID1: Size:2.34TiB, Used:2.30TiB
> /dev/mapper/data_disk_ESFH 2.34TiB
> /dev/mapper/data_disk_EVPC 2.34TiB
>
> Metadata,RAID1: Size:7.00GiB, Used:4.48GiB
> /dev/mapper/data_disk_ESFH 7.00GiB
> /dev/mapper/data_disk_EVPC 7.00GiB
>
> Metadata,DUP: Size:1.00GiB, Used:257.22MiB
> /dev/mapper/data_disk_ESFH 2.00GiB
>
> System,RAID1: Size:32.00MiB, Used:368.00KiB
> /dev/mapper/data_disk_ESFH 32.00MiB
> /dev/mapper/data_disk_EVPC 32.00MiB
>
> Unallocated:
> /dev/mapper/data_disk_ESFH 3.11TiB
> /dev/mapper/data_disk_EVPC 3.11TiB
> root@phoenix:~#
>
> root@phoenix:~# btrfs --version
> btrfs-progs v5.1
>
>
> I presume running another balance will fix this, but surely all metadata
> should have been converted? Is there a way to only balance the DUP
> metadata?
btrfs balance start -m convert=raid1,soft
should do it.
prev parent reply other threads:[~2019-09-09 8:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-08 7:09 Balance conversion to metadata RAID1, data RAID1 leaves some metadata as DUP Pete
2019-09-08 7:57 ` Holger Hoffstätte
2019-09-08 9:18 ` Pete
2019-09-08 9:48 ` Holger Hoffstätte
2019-09-09 8:28 ` Andrei Borzenkov [this message]
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