hard disk is full because of what ?

bendani · 02-26-2007, 02:28 PM

hey
i got some weird problem
when im doing "df -h"
it says that im using 55G

and when im doing "du -sh" for all the dirs it says im using 26G
so where is all the other Gigabytes ?

Quote:

[root@host ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
74G 56G 15G 80% /
/dev/sda1 99M 22M 72M 24% /boot
none 1010M 0 1010M 0% /dev/shm
/dev/tmpMnt 769M 35M 696M 5% /tmp

Quote:

[root@host /]# du -chx --max-depth=1
3.6G ./var
27M ./etc
4.0K ./scripts
16K ./tmp
0 ./dev
8.0K ./selinux
0 ./sys
2.0K ./boot
18G ./home
1.6G ./usr
8.0K ./opt
0 ./proc
8.0K ./srv
402M ./ben
11M ./lost+found
8.0K ./mnt
5.3M ./bin
8.0K ./initrd
169M ./lib
16M ./sbin
8.0K ./media
8.0K ./misc
18M ./root
24G .
24G total

biniou · 02-27-2007, 05:37 AM

Hello !

df gives info on usage of the FileSystem, where du will give the size of selected directories/files ...

(and in fact, --max-depth=1 won't give an actual value, as it stops at directory depth of 1 ...)

pwc101 · 02-27-2007, 05:49 AM

try running du -sh * from the root directory to get the size of each folder in /.

bendani · 02-27-2007, 06:13 AM

ok
so where is all the other data ?
my hard disk is getting full and i dont know what to do

pwc101 · 02-27-2007, 06:59 AM

Code:

for i in *; do cd $i && find ./ -type d | xargs du -sh | sort -g > ~/$i.size && cd ..; done

That will give you a crude idea of what's taking up a lot of space, although as I said, it's fairly inaccurate. It'll change into each of the folders in root, determine what the filesizes of each folder in those directories is, and then output them to a file name called <directory>.size. It'll help you narrow down where the largest directories are, and then you can work through those with the same commands. Maybe (hopefully) someone will come up with a better solution!

edit: run this command from the root directory!

bendani · 02-27-2007, 07:29 AM

you have got to understand
all the dirs togheter with all kings of "du" (du -sh for example) gets to max 26 GB
i dont know what is all the other 30 GB
how can i search for them
maybe its unmount or something like this ?

Dark_Helmet · 02-27-2007, 02:11 PM

Quote:

Originally Posted by biniou

(and in fact, --max-depth=1 won't give an actual value, as it stops at directory depth of 1 ...)

As I understand it, the man page says the --max-depth argument does not affect how far down du traverses to count used space, but only affects the depth of the final report. That is to say '--max-depth=1' will cause du's final report to display only the directory specified on the command line and one level of directories below it. Each directory reported will have an accurate accounting of the space consumed by that directory and all its subdirectories.

The df and du utilities look at different data to determine disk usage. In fact, I've seen this question, and variations of it, asked a number of times, but I can't find another thread at the moment. However, searching on Google for "df du different" gave this result on the first page: DF & DU report different size

And another support thread on the first page: "df" and "du" show different results

I don't know if they'll answer the question to your satisfaction, but they're a good start.