1

I have an old RHEL 5.5 Box,

When I fire df -kh I see that /var is of 49 GB with 100 % usage.

But then I go inside the /var

cd /var

and I fire 

du -kh

I see that only total 300 MBs are used.

I am not able to get it. Is is possible that this partition is shared with different partition?

I see that /opt is also of 49 GB. I think that they are same partition.

I need to free /var to start mysql but there is hardly anything to be deleted.

Any pointers?

user1263746
  • 189
  • 3
  • 8
  • 1
    What does `mount` say? Is /var a symlink to somewhere inside /opt? – Patrice Levesque Jun 25 '13 at 07:14
  • 1
    Please add the output of `sudo lsof +L1` in your question. – ThatGraemeGuy Jun 25 '13 at 08:01
  • If you look over on the right of the page under **Related** - one of the Q&As there will almost certainly answer your question. My guess is that you have deleted a log file but forgotten to restart the daemon that is writing to it so the file is still occupying disk space. – user9517 Jun 25 '13 at 08:19
  • Hello, welcome to serverfault, this question has already been here : serverfault.com/questions/57098/du-vs-df-difference –  Jun 25 '13 at 08:20

1 Answers1

2

Its possible that youve deleted a lot of files, they arent on disk, but the process still has them open. Restart the process that you think has them open. Sometimes merely a kill -HUP will do it.

To find the processes that have files in this filesystem open, use fuser -c <filesustem> or lsof +L1 | grep <filesystem>

Sirch
  • 5,697
  • 4
  • 19
  • 36