https://community.hpe.com/t5/operating-system-linux/df-h-showing-wrong-o-p/m-p/5225144#M51791 Shalom,<BR /><BR />This is either a calculation error or:<BR /><BR />You deleted a file and there is still an open file handle on it. fuser -u /file_system<BR /><BR />This will let you identify the process. If you kill the process, your calculation may become more accurate.<BR /><BR />SEP Mon, 15 Feb 2010 16:29:20 GMT Steven E. Protter 2010-02-15T16:29:20Z https://community.hpe.com/t5/operating-system-linux/df-h-showing-wrong-o-p/m-p/5225143#M51790 hi,<BR /><BR />a mount point of 99 GB shows only 95 GB free when only 210 MB is utilized.<BR /><BR />/dev/mapper/rootvg-opt<BR /> 100G 206M 95G 1% /opt<BR /><BR /><BR />please advice.<BR /><BR />regards,<BR />sagar. Mon, 15 Feb 2010 15:24:58 GMT https://community.hpe.com/t5/operating-system-linux/df-h-showing-wrong-o-p/m-p/5225143#M51790 sagi_1 2010-02-15T15:24:58Z https://community.hpe.com/t5/operating-system-linux/df-h-showing-wrong-o-p/m-p/5225144#M51791 Shalom,<BR /><BR />This is either a calculation error or:<BR /><BR />You deleted a file and there is still an open file handle on it. fuser -u /file_system<BR /><BR />This will let you identify the process. If you kill the process, your calculation may become more accurate.<BR /><BR />SEP Mon, 15 Feb 2010 16:29:20 GMT https://community.hpe.com/t5/operating-system-linux/df-h-showing-wrong-o-p/m-p/5225144#M51791 Steven E. Protter 2010-02-15T16:29:20Z https://community.hpe.com/t5/operating-system-linux/df-h-showing-wrong-o-p/m-p/5225145#M51792 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.<BR /><BR />On large or non root file systems you might want to modify that % with tune2fs. This would tell ext2/3 to not reserve anything:<BR /><BR />tune2fs -m 0 /dev/mapper/rootvg-opt Mon, 15 Feb 2010 16:47:07 GMT https://community.hpe.com/t5/operating-system-linux/df-h-showing-wrong-o-p/m-p/5225145#M51792 J. Maestre 2010-02-15T16:47:07Z https://community.hpe.com/t5/operating-system-linux/df-h-showing-wrong-o-p/m-p/5225146#M51793 Hi Steve,<BR /><BR />Thanks for the reply. I have tried it and it shows nothing.<BR />please advice.<BR /><BR />regards,<BR />sagar. Mon, 15 Feb 2010 17:03:39 GMT https://community.hpe.com/t5/operating-system-linux/df-h-showing-wrong-o-p/m-p/5225146#M51793 sagi_1 2010-02-15T17:03:39Z https://community.hpe.com/t5/operating-system-linux/df-h-showing-wrong-o-p/m-p/5225147#M51794 thanks, tune2fs -m 0 has worked. Thanks for the help. Mon, 15 Feb 2010 18:00:05 GMT https://community.hpe.com/t5/operating-system-linux/df-h-showing-wrong-o-p/m-p/5225147#M51794 sagi_1 2010-02-15T18:00:05Z