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Subject: |
df calculus wrong? |
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Date: |
Fri, 01 Jun 2012 00:26:01 +0200 |
Hello everybody,
first of all let me say a big thank you -and all the others- for
spending time and life donation to the GPL, FSF, .... world of Linux.
I am not an developer but mathematics is one of my favs so how can the
following explained?
Command issued
df -h
response
----paste start -----
Dateisystem Größe Benut Verf Ben% Eingehängt auf
/dev/sda1 36G 25G 9,1G 73% /
....
----paste end -----
Circumstances and conditions:
Ubuntu 10.04 lts server
SDA is a physical SATA connected drive
Installation language de
Execution is done via ssh due to headless server system
If size (Größe) is 36GB and occupied space (Benut) is 25GB -guess-
remaining space (Verf) is below 10GB there must be a bug in calculation
or in the way the first two values were derived from the system.
If there would be a diff of +-1 digit nobody would think about but in
this case there is a mismatch in the msd (most signifikant digit)
I would really appreciate feedback that the mail is recieved and if
there will be actions taken upon.
Sincerely
Sterzenbach
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--- Begin Message ---
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Subject: |
Re: bug#11597: df calculus wrong? |
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Date: |
Fri, 01 Jun 2012 00:08:00 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:6.0) Gecko/20110816 Thunderbird/6.0 |
tags 11597 notabug
On 05/31/2012 11:26 PM, system wrote:
> Hello everybody,
>
> first of all let me say a big thank you -and all the others- for
> spending time and life donation to the GPL, FSF, .... world of Linux.
>
>
> I am not an developer but mathematics is one of my favs so how can the
> following explained?
>
> Command issued
> df -h
>
> response
> ----paste start -----
> Dateisystem Größe Benut Verf Ben% Eingehängt auf
> /dev/sda1 36G 25G 9,1G 73% /
> ....
> ----paste end -----
>
> Circumstances and conditions:
> Ubuntu 10.04 lts server
> SDA is a physical SATA connected drive
> Installation language de
> Execution is done via ssh due to headless server system
>
> If size (Größe) is 36GB and occupied space (Benut) is 25GB -guess-
> remaining space (Verf) is below 10GB there must be a bug in calculation
> or in the way the first two values were derived from the system.
> If there would be a diff of +-1 digit nobody would think about but in
> this case there is a mismatch in the msd (most signifikant digit)
>
> I would really appreciate feedback that the mail is recieved and if
> there will be actions taken upon.
There can be less available space due to reservations for example.
I think the specific issue here is that 5% of the / file system
is reserved for the root user and thus is not included in the
generally available count returned by the file system.
cheers,
Pádraig.
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