df numbers vs reality
brandon at hotornot.com
Tue Dec 6 23:15:50 UTC 2005
Hmm, on second thought that may be a feature of ext2/3 to prevent
runaway processes from preventing maintenance work by a superuser. This
is not true for reiserfs.
Brandon Ooi wrote:
> I believe this is also true for reiserfs. You can mark the drive as
> down, tar-copy it somewhere and reformat it with the "-m 0" arguments
> and move it back. I dont' know any other simple solution.
> Eric Lambrecht wrote:
>> something we just noticed:
>>> guba at caitlin:~$ df -k -l /storage
>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>> /dev/sda4 236869888 224837608 0 100% /storage
>> *sigh*.. didn't realize the OS reserves about 5% of the blocks for
>> the super-user, so mogile thinks we've still got space left when
>> we're actually out.
>> This is the case for ext2 or ext3, and I haven't checked with the
>> reiser boxes yet (we're doing a couple different filesystems to see
>> how they work out).
>> You might be able to get around this with ext2 and ext3 by using the
>> '-m 0' argument to mk2efs.
>> Frustrating how you never seem to get exactly what tools report...
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