Re: Large disk partition over 300GB
Thierry Vignaud (tvignaud@mandrakesoft.com)
Tue, 13 Jul 1999 12:03:45 +0000
Khimenko Victor wrote:
>
> In <378B0916.F3588C8E@mandrakesoft.com> Thierry Vignaud (tvignaud@mandrakesoft.com) wrote:
> > Miquel van Smoorenburg wrote:
>
> >> Ofcourse you realize that setting -m to 1 or worse, 0, will result
> >> in a badly fragmented disk when it fills up and really bad performance.
> >>
> >> The reason that 5% of disk space is reserved is to always have some
> >> room left. The ext2 allocation algorithm needs this to prevent fragmentation.
>
> > I think the main reason is to let the sysadmin to fix the system in case
> > of problem and to prevent users from filling all the free space. A lot
> > of utilities need free space for temporary files. How do you edit a conf
> > file if there is no room ?
>
> And utilities can NOT use this free space :-)) And you can NOT use this room
> for conf files editing (unless you are root, of course)... No, main reason is
> to give ext2fs defragmentation algorithm space to breathe.
the root user __DOES__ can use this space (or any other user you specify
with tune2fs). should a user eats all the free room (less the 5%), root
can still log in and free up some space for 'normal' user...
This is a security feature.
--
MandrakeSoft http://www.mandrakesoft.com/
--Thierry
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