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Date:      Sat, 13 Aug 2011 00:46:04 +0200
From:      Alain AUDEBERT aka 2A <deuza@me.com>
To:        Polytropon <freebsd@edvax.de>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Don't understand df/du output
Message-ID:  <249410CE-BA2D-4622-AD21-07F87AB34534@me.com>
In-Reply-To: <20110813003526.73c865aa.freebsd@edvax.de>
References:  <5F5BA901-50F2-4F5F-A1A6-1267E5B7C212@me.com> <20110813003526.73c865aa.freebsd@edvax.de>

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Le 13 ao=FBt 2011 =E0 00:35, Polytropon a =E9crit :

> On Fri, 12 Aug 2011 23:58:12 +0200, Alain AUDEBERT aka 2A wrote:
>> Hello list,
>>=20
>> I having a problem to understand the output of du and df command :
>>=20
>> [root@ftp ~]# df -h /opt/
>> Filesystem    Size    Used   Avail Capacity  Mounted on
>> /dev/xbd6     387G    342G     13G    96%    /opt
>>=20
>> [root@ftp ~]# du -sh /opt/
>> 342G    /opt/
>>=20
>> But 387Go - 342Go not equal to 13Go ! Where's the available space ?
>> (same thing with df -k)
>>=20
>> I have try a tunefs -m 1 /dev/xbd6, unmount, mount and nothing change
>> Is it the 8% reserved by FFS ?
>=20
> See:
> http://www.freebsd.org/doc/en/books/faq/disks.html#DU-VS-DF


Thank for the link, but in my case du and df are the same used output, =
and it's not an rm, I launch lsof and no process with a big file :-/

Regards,
Alain
--=20
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