From: Ilya Dryomov <idryomov@gmail.com>
To: Jan Engelhardt <jengelh@inai.de>
Cc: Hugo Mills <hugo@carfax.org.uk>, linux-btrfs@vger.kernel.org
Subject: Re: btrfs fi df won't show total=
Date: Tue, 10 Jul 2012 00:52:34 +0300 [thread overview]
Message-ID: <20120709215234.GA1942@zambezi.lan> (raw)
In-Reply-To: <alpine.LNX.2.01.1207092204450.23294@frira.zrqbmnf.qr>
On Mon, Jul 09, 2012 at 10:06:24PM +0200, Jan Engelhardt wrote:
>
> On Monday 2012-07-09 21:25, Hugo Mills wrote:
> >On Mon, Jul 09, 2012 at 09:14:03PM +0200, Jan Engelhardt wrote:
> >>
> >> On openSUSE_12.1 with Btrfs v0.19+20120406, the following can be
> >> observed: after a change of the profiles, total=,used= is no
> >> longer shown:
> >>
> >> 20:49 mmsrv1:~ # btrfs fi df /top.srv/
> >> Data, RAID10: total=152.00GiB, used=121.07GiB
> >> System, RAID1: total=40.00MiB, used=44.00KiB
> >> System: total=4.00MiB, used=0.00
> >> Metadata, RAID1: total=112.00GiB, used=1.30GiB
> >> Metadata: total=8.00MiB, used=0.00
> >>[...]
> >> 21:10 mmsrv1:~ # btrfs fi df /top.srv/
> >> Data, RAID10: total=156.00GiB, used=124.35GiB
> >> System, RAID10: total=128.00MiB, used=48.00KiB
> >> System: total=4.00MiB, used=0.00
> >> Metadata, RAID10: total=112.00GiB, used=1.38GiB
> >
> > What's the problem here? You no longer have any RAID1 chunks, so
> >it's not showing them.
>
> Rather tha a 4-line output, I would have expected this 6-line output
> that I would also get when mkfs'ing a new fresh btrfs volume with
> raid10 from the start:
>
> Data, RAID10: total=156.00GiB, used=124.35GiB
> Data: total=foo, used=bar
> System, RAID10: total=128.00MiB, used=48.00KiB
> System: total=4.00MiB, used=0.00
> Metadata, RAID10: total=112.00GiB, used=1.38GiB
> Metadata: total=foo, used=bar
mkfs creates those non-raid chunks for a pretty stupid reason, they
really shouldn't be there if you create a raid10 fs. Balance does the
right thing and removes them. Fixing this along with another mkfs
annoyance related to this one is on my TODO list.
Thanks,
Ilya
next prev parent reply other threads:[~2012-07-09 21:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-09 19:14 btrfs fi df won't show total= Jan Engelhardt
2012-07-09 19:25 ` Hugo Mills
2012-07-09 20:06 ` Jan Engelhardt
2012-07-09 20:25 ` Hugo Mills
2012-07-09 21:52 ` Ilya Dryomov [this message]
2012-07-12 7:59 ` Andrei Popa
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