find where space is being used?

mattsoftnet · 04-01-2006, 11:21 AM

I have a server with cpanel installed. I ran the cpbackup script last night to do a backup of some sites to my home computer over ftp. when I checked it thismorning, it looked like putty disconnected or something and the backup didn't finish. I'm not sure if there are temp files from that taking up space someplace, but I think my disk usage is higher then it should be.

how can I find where the most space is being used? I know there are a bunch of programs for windows to do graphs of your whole directory structure, but my server is centos (redhat enterprise) without a gui. what can I do to find where the space is being used?

jlinkels · 04-01-2006, 11:45 AM

The command is 'du -h'

This will recurse into directories and show the file size of every file, and the total of every directory.

Now if you have 3495634756876 files on your machine and 8593048 directories that doesn't help much. To show only the really large files/directories, use:

'du -h | grep ^[0-9][0-9]M*'

to show all files or directories over 10 MB. Adapt the regexp as necessary :-)

jlinkels

mimithebrain · 04-01-2006, 12:30 PM

Konqueror has a nice integrated size oriented filesize thingy.

Try this: http://www.marzocca.net/linux/baobab.html
It appeared on Linux Magazine recently...

J.W. · 04-01-2006, 01:16 PM

I find the following command to be very handy

Code:

du -h --max-depth=1

It will give give you the total amount of space that each subdirectory is using

jlinkels · 04-01-2006, 05:21 PM

J.W. You are right about that, but if you have a large directory somewhere buried deep down there you have to descend into it manually.

jlinkels

mattsoftnet · 04-02-2006, 12:28 AM

thanks. works good. now, next problem. what is the command to double my hard drive size?..

is there a simple way to span raid a partition in linux? like add another drive to the /home partition? I wouldn't want it to have a different name like home2 or something, and not a subdirectory of /home, any way to do that easy?

J.W. · 04-02-2006, 03:23 AM

Quote:

Originally Posted by jlinkels

J.W. You are right about that, but if you have a large directory somewhere buried deep down there you have to descend into it manually.

Yes and No. Note that you can set max-depth to 2 or 3 or whatever.

Don't get me wrong, both your suggestion and mine are basically the same thing, but if you've got a lot of files the output from running "du -h" can be overwhelming. Combining it with the max-depth option can provide a very useful, high-level view of the system