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Date:      Wed, 16 Aug 2017 14:10:04 +0200
From:      Marko Turk <markoml@markoturk.info>
To:        Johan Helsingius <julf@julf.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: ZFS and free space
Message-ID:  <20170816121004.GB16608@vps.markoturk.info>
In-Reply-To: <cc88861f-944c-3640-c746-54d3d51117b2@julf.com>
References:  <c4f933a5-e9c7-6df4-b443-dc3f4e964827@julf.com> <a4854ec0e37de576e636dac7f468e975@dweimer.net> <c9b62f68-199b-eafd-79bf-e47c44885f9a@julf.com> <126aaff1-58af-f7d5-b47e-c7d894b45606@gmail.com> <a179f76a-19ef-7576-4fc5-55ed5ce348b2@julf.com> <CADqw_g+4vLrS0oUdyLUgxZDTJy=z88fP-wC-EYwydSuAH3WtOA@mail.gmail.com> <db074f22-dc8b-5407-fb8f-6253851ce0a8@julf.com> <20170816105759.GA16608@vps.markoturk.info> <cc88861f-944c-3640-c746-54d3d51117b2@julf.com>

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On Wed, Aug 16, 2017 at 02:02:39PM +0200, Johan Helsingius wrote:
> Marko,
>=20
> > What is the output of
> > $ zfs list -o name,mountpoint,mounted,used,refer,ratio,compress
>=20
> NAME                MOUNTPOINT     MOUNTED   USED  REFER  RATIO  COMPRESS
> zroot               /zroot             yes  10.2T   140K  1.07x       lz4
> zroot/ROOT          none                no  3.01G   140K  2.61x       lz4
> zroot/ROOT/default  /                  yes  3.01G  3.01G  2.61x       lz4
> zroot/home          /home/storage      yes  5.98T  5.98T  1.06x       lz4
> zroot/tmp           /tmp               yes   163K   163K  1.01x       lz4
> zroot/usr           /usr                no  4.17T   140K  1.09x       lz4
> zroot/usr/home      /usr/home          yes  4.17T  4.17T  1.09x       lz4
> zroot/usr/ports     /usr/ports         yes  1.26G  1.26G  2.19x       lz4
> zroot/usr/src       /usr/src           yes   140K   140K  1.00x       lz4
> zroot/var           /var                no  1.43M   140K  4.82x       lz4
> zroot/var/audit     /var/audit         yes   140K   140K  1.00x       lz4
> zroot/var/crash     /var/crash         yes   140K   140K  1.05x       lz4
> zroot/var/log       /var/log           yes   767K   767K  5.61x       lz4
> zroot/var/mail      /var/mail          yes   140K   140K  1.00x       lz4
> zroot/var/tmp       /var/tmp           yes   140K   140K  1.00x       lz4
>=20
> So I guess it is zroot/usr (/usr) that isn't mounted for
> some reason but holds a bunch of stuff!

No, I don't think so. zroot/usr is set to not mounted by installer and
that's OK.

Can you set mountpoint for zroot/home to somewhere else (e.g. /tmp/somethin=
g)
and then check with du the size of /tmp/something and /usr/home (but
don't use '*', just 'du -hs /tmp/something' so we dont get wrong results
because of dotfiles)?

/Marko

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