Solved

Ubuntu using 100% disk space but I can only find 9.5GB

Posted on 2010-09-17
5
602 Views
Last Modified: 2012-05-10
I have an Ubuntu x64 9.10 server without a GUI and it's completely out of disk space. I've used all of the conventional methods for locating the problems files/directories and I can only find 9.5GB out of 250GB being used. Running a du -hca / plus some other commands I've found all find the same tiny amount of data usage.

The server is running MySQL / Apache with a heavy MySQL database but the database and logs only uses about 6.5GB of space.
0
Comment
Question by:renazonse
  • 3
5 Comments
 
LVL 77

Assisted Solution

by:arnold
arnold earned 250 total points
ID: 33700115
run df -k
You might have partitioned the system such that it only allocated a low amount of disk space to the OS and you have free space on the hard drive.
Or you have 10GB allocated to / and the rest to /home/, /var/lib/mysql or /db etc.

fdisk -l /dev/hda
or /dev/sda
etc.
0
 
LVL 30

Author Comment

by:renazonse
ID: 33700240
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/oasis-root
                     229698772 220714364         0 100% /
udev                   2026528       184   2026344   1% /dev
none                   2026528         0   2026528   0% /dev/shm
none                   2026528        40   2026488   1% /var/run
none                   2026528         0   2026528   0% /var/lock
none                   2026528         0   2026528   0% /lib/init/rw
/dev/sda5               233335     43774    177113  20% /boot


Definitely just / that's full here
0
 
LVL 9

Accepted Solution

by:
absx earned 250 total points
ID: 33700499
Hi,

Apparently the du can ignore files that are currently open in some process. This could be, say, a humongous log file if your DB server was misconfigured.

Try using the lsof command to view open files, as described in http://www.cyberciti.biz/tips/freebsd-why-command-df-and-du-reports-different-output.html.

- Jarkko
0
 
LVL 30

Author Comment

by:renazonse
ID: 33701281
Ok...I ran the lsof and the tmp files are basically nothing. But, I do see a great deal of "(deleted)" files...how do I purge these files? Also, by chance, I see a directory I'd like to recover....how do I do that?

See my attached lsof. Thanks.
lsof.txt
0
 
LVL 30

Author Comment

by:renazonse
ID: 33702048
I figured it out...I'm an idiot this time. I was excluding the directory where my external RAID is mounted and discovered the RAID wasn't mounted. A huge backup RAN to that directory filling up the hard drive.

I ran "du -chx" to determine that.

Thanks for the help...lsof is a nice one to know.
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Linux users are sometimes dumbfounded by the severe lack of documentation on a topic. Sometimes, the documentation is copious, but other times, you end up with some obscure "it varies depending on your distribution" over and over when searching for …
The purpose of this article is to demonstrate how we can use conditional statements using Python.
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question