RE: File system overhead




Mike

The explanation for Debian is the file system reserves some space (5% by
default) for root's use in case the partition gets filled. If your
partitions were formatted using mkfs then you can man mkfs and look at the
-m option. It will give a very brief explanation of what is happening

Tony Heal
Pace Systems Group, Inc.
800-624-5999
theal@xxxxxxxxxxxx

-----Original Message-----
From: Mike McCarty [mailto:mike.mccarty@xxxxxxxxxxxxx]
Sent: Friday, January 20, 2006 12:16 PM
To: debian-user@xxxxxxxxxxxxxxxx
Subject: Re: File system overhead

Lubos Vrbka wrote:
>> If you look at the output of df -h you will see that the size of the
>> partition is 219GB there is only 168MB in this partition yet there is
>> only
>> 208GB left. This is a new server and that partition has only had things
>> added to it, nothing has ever been removed.
>>
>> By my calculations there should be 218.8GB left, so if not the rest
>> must be
>> filesystem overhead. 5 percent seems to be a bit much, but as long as
>> I can
>> explain it I may be able to live with this. That is why I want a link
>> to a
>> site that could explain the overhead of the ext3 filesystem.
>
> did you execute the df command as root? if not, it might report less
> free space. there is a reserved space (5% is default for ext2/3, iirc,
> however you can set it up differently) that is available only for
> root... and since you report 5% in your case...
>
> regards,
>


IMPORTANT NOTE: I DON'T RUN DEBIAN!
(My girlfriend runs Debian, so I hang out here to be
able to help support her machine. I run Fedora Core 2.)

I have *less* available as root than as ordinary user...

$ df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/hda5 7633264 5717832 1527684 79% /
/dev/hda3 99075 24602 69358 27% /boot
none 124044 0 124044 0% /dev/shm
$ su -
Password:
# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/hda5 7633264 5717836 1527680 79% /
/dev/hda3 99075 24602 69358 27% /boot
none 124044 0 124044 0% /dev/shm

But certainly not anything like 5%. And my numbers also
don't quite add up.

Mike
--
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You have found the bank of Larn.
I can explain it for you, but I can't understand it for you.
I speak only for myself, and I am unanimous in that!


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