df -h showing wrong o/p

[sagi_1]

hi,

a mount point of 99 GB shows only 95 GB free when only 210 MB is utilized.

/dev/mapper/rootvg-opt
100G 206M 95G 1% /opt


please advice.

regards,
sagar.

[Steven E. Protter]

Shalom,

This is either a calculation error or:

You deleted a file and there is still an open file handle on it. fuser -u /file_system

This will let you identify the process. If you kill the process, your calculation may become more accurate.

SEP

[J. Maestre · Accepted solution]

An idea, just in case: ext2/3 file systems reserve (by default) a 5% of the file system space to keep the system running if it fills up, and to prevent fragmentation.

On large or non root file systems you might want to modify that % with tune2fs. This would tell ext2/3 to not reserve anything:

tune2fs -m 0 /dev/mapper/rootvg-opt

[sagi_1]

Hi Steve,

Thanks for the reply. I have tried it and it shows nothing.
please advice.

regards,
sagar.

[sagi_1]

thanks, tune2fs -m 0 has worked. Thanks for the help.