Investigate the -m option of mkfs.ext2/3 or tune2fs. The default is 5%.
Maurice Volaski wrote:
I created a filesystem as follows:
mke2fs -j -O dir_index -O sparse_super -T largefile /dev/drbd/6
Here's the the output from df
Filesystem Size Used Avail Use% /dev/drbd/6 475G 33M 452G 1%
It seems that ext3 has taken 23 GB, which is about 5% of the total disk size, for itself. Is that right?
If that is, indeed, the case, why does df just list 33M as being used?
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