disk space is full

[samengr]

Hi All Linux people,

Well, I am facing a problem, When i run the command

]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/cciss/c0d0p2 31G 30.4G 500M 100% /
/dev/cciss/c0d0p1 99M 15M 79M 16% /boot
none 1004M 0 1004M 0% /dev/shm

even when i check the size of each folder with the command (du -sh / du -h), the compelte size of all folders is not more then 10G.
/var show the 6G and when i check all folder size manually with the command (du -sh / du -h), i can see its not more then 1G.

Can any one recommend something .. what should i do know? Any command that can work like we run scandisk in window and then it shows the proper size.

waiting for your earlier response.

Thanks
Sam

[devils casper]

Execute this

su -
yum -y clean all
cd /var/log
rm -f messages.*
df -h

[stephen84s]

Frankly I feel u have done almost everthing to find any files that might be eating up your disk space ... But still I wanna share the following command which helped me trace a large log file that had eaten up my disk space:

find . -size +5000M -print

The above command will search for files larger than 5GB on your system and print their details.... Hope it helps