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I have redhat enterprise linux running on my sustem. Till yesterday my / was 36% full suddenly(as it was sunday many have not used the server) I am seeing it as 100% full.
I have /home /usr /var /boot mounted in other partions.
# df -k (on today)
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda3 8063408 8063400 0 100% /
/dev/sda1 99134 14933 79082 16% /boot
/dev/sda7 100703656 24865008 70723156 27% /home
none 1030540 0 1030540 0% /dev/shm
/dev/sda5 7055272 2605900 4090976 39% /usr
/dev/sda2 20158332 725820 18408512 4% /var
my /var was also showing 100 % full. I deleting the mail log and it came back to 4%. Can anyone tell me so that can isee what is needed to deleted from / partion.
#df -k (yesterday)
------------------ Disk Space --------------------
If you run du -sh /* you will see which top level directories are using up the space. If for example, it was /var, you would then type du -sh /var/* and so on until you find out where the files using up the space are located.
I wouldn't just delete the /tmp directory unless you can shut down any system and user processes that are using it. It shouldn't take long to find where the space is being used with du -sh /tmp/*. Could one of your users be building an image to burn to DVD?