[SOLVED] lost disk space

darkmanta · 08-13-2010, 04:42 AM

Hi,
I can't understand why a "df" gives 100% disk usage on / even if I delete many files, GB of files.

I have a Fedora 7 server with / in RAID1 that looks clean.

Any suggestion?

Thank you

mahi_nix · 08-13-2010, 05:59 AM

Hi,

Can you tel us, how many partions are created in your Fedora Syatem and which directory data you have deleted in Fedora7 system ???

Thanks,

Mahi

repo · 08-13-2010, 06:05 AM

My first guess is you have deleted files that are still open.

sem007 · 08-13-2010, 06:10 AM

If remove files from graphics clean you Trash

darkmanta · 08-13-2010, 06:22 AM

I removed some installed packages like scribus, cleaned /tmp dir, cut/pasted 2GB of back-up files from / to an external disk and then this is my df result:

> df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md0 95G 95G 0 100% /
tmpfs 940M 0 940M 0% /dev/shm
/dev/md2 51G 31G 18G 65% /home
/dev/md1 142G 2.9G 132G 3% /var

I have no direct access to the machine, I'm working through webmin

Thank you people

mahi_nix · 08-13-2010, 07:12 AM

Hi,

Is it possible to check via command line and as Sem007 said try to remove files from Trash and let us know.

and also Run du -hs command on / and paste your result here.

Thanks,

Mahi

darkmanta · 08-13-2010, 08:07 AM

there is really something wrong:

> du -hs /
du: cannot access `/proc/26677/task/26677/fd/4': No such file or directory
du: cannot access `/proc/26677/fd/4': No such file or directory
129G /

129G ?????????

> df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md0 95G 95G 0 100% /
tmpfs 940M 0 940M 0% /dev/shm
/dev/md2 51G 31G 18G 65% /home
/dev/md1 142G 2.9G 132G 3% /var

is my filesystem corrupted?

mahi_nix · 08-13-2010, 08:25 AM

Just Run this command on / directory

sem007 · 08-13-2010, 08:33 AM

Quote:

Originally Posted by darkmanta

there is really something wrong:

> du -hs /
du: cannot access `/proc/26677/task/26677/fd/4': No such file or directory
du: cannot access `/proc/26677/fd/4': No such file or directory
129G /

129G ?????????

> df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md0 95G 95G 0 100% /
tmpfs 940M 0 940M 0% /dev/shm
/dev/md2 51G 31G 18G 65% /home
/dev/md1 142G 2.9G 132G 3% /var

is my filesystem corrupted?

nop it is sum of used space of "/" "/home" "/var"

Quote:

cut/pasted 2GB of back-up files from / to an external disk and then this is my df result:

Can you give exact location where you cut data?

darkmanta · 08-13-2010, 09:16 AM

I cut/pasted many files from /backup to /mnt/backup where I mounted an external samba directory.
The files have been correctly moved but :
> df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md0 95G 95G 0 100% /
tmpfs 940M 0 940M 0% /dev/shm
/dev/md2 51G 31G 18G 65% /home
/dev/md1 142G 2.9G 132G 3% /var

quanta · 08-13-2010, 09:34 AM

Try to use the 'watch' command to monitor the root filesystem space and determine which folder fill up your hard disk:

Code:

su -
cd /
watch -n 1 "du -s * | sort -rn"

darkmanta · 08-13-2010, 11:59 AM

58535852 mnt
35956568 backup
32547460 home
4250484 usr
2751996 var
242736 etc
224872 lib
26428 boot
20148 sbin
6832 root
6408 bin
420 tmp
100 dev
16 lost+found
12 media
8 webmin-setup.out
8 srv
8 selinux
8 opt
0 sys
0 proc
0 net
0 misc

after a new cut/paste:

59759508 mnt
34732888 backup

so something has changed in /backup
but

Filesystem Size Used Avail Use% Mounted on
/dev/md0 95G 95G 0 100% /
tmpfs 940M 0 940M 0% /dev/shm
/dev/md2 51G 31G 18G 65% /home
/dev/md1 142G 2.9G 132G 3% /var

I can't understand... any idea?

sem007 · 08-14-2010, 12:51 AM

Quote:

I cut/pasted many files from /backup to /mnt/backup where I mounted an external samba directory.
The files have been correctly moved but :

As you said you move data to external samba dir.

but df -h command not display any mounted dir.

Quote:

> df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md0 95G 95G 0 100% /
tmpfs 940M 0 940M 0% /dev/shm
/dev/md2 51G 31G 18G 65% /home
/dev/md1 142G 2.9G 132G 3% /var

Can you please post mount command output.

I assume you move data /backup to /mnt/backup (same file system) not mounted dir.

HTH

darkmanta · 08-14-2010, 12:33 PM

Quote:

Originally Posted by sem007

As you said you move data to external samba dir.

I assume you move data /backup to /mnt/backup (same file system) not mounted dir.

HTH

/mnt/backup points to a different machine. in fstab I have this entry:

Quote:

\\10.10.10.16\backup /mnt/backup cifs defaults 0 0

and I don't get free space even if I simply delete big files, like uninstalling big packets or removing old backup files.

Now I think it's a ext3 fs failure.

joec@home · 08-14-2010, 10:51 PM

Simple answer, the system will not report virtual open files, but df will. The following command will show the open files. Trace them back to the service that has them open and then stop and start the service. Do not restart the service, but actually stop and then start them.

lsof |grep deleted