Drive Warning: /sda3 (/) is 84% full

[devellion]

Hello,

I keep receiving the warning that "Drive Warning: /sda3 (/) is 84% full"

779Mb of 981Mb has been used and its mounted on /

Can anyone advise?

[DigitalN]

Hello,

This means that

779Mb of 981Mb available disk space has been used and its mounted on /
You need to clear out some files as required from within your / partition or move them to another partition, to make way for more space.

what does

# df -h

Show for the other partition usages?

[devellion]

Thanks for your reply it's a very virginal server still:

It says...

Filesystem            Size  Used Avail Use% Mounted on
/dev/sda3             981M  779M  153M  84% /
/dev/sda1              99M   25M   69M  27% /boot
/dev/sda8             125G  1.1G  118G   1% /home
none                 1004M     0 1004M   0% /dev/shm
/dev/sda7             494M  8.1M  461M   2% /tmp
/dev/sda6             9.7G  2.6G  6.6G  29% /usr
/dev/sda5             9.7G  407M  8.8G   5% /var

I'm not very confident with shifting files.

[chirpy]

I would suspect that you have old kernels installed. What do you get from:

rpm -qa | grep kernel

[devellion]

It gives me this:

kernel-2.4.21-20.EL.c0
kernel-source-2.4.21-27.0.2.EL
kernel-smp-2.4.21-27.0.2.EL
kernel-smp-2.4.21-20.EL.c0
kernel-utils-2.4-8.37.6
kernel-pcmcia-cs-3.1.31-13
kernel-2.4.21-27.0.2.EL

Is that out of date? The OS is CentOS

[DigitalN]

You don't need these, but they won't be taking up much from your / partition, as you have a /usr and a /boot partition


kernel-source-2.4.21-27.0.2.EL
kernel-pcmcia-cs-3.1.31-13

You only need an smp kernel too, if you have a dual proc machine, and if you do have a dual proc machine, the uni processor kernels aren't needed.

Have you downloaded much into /root ?

# ls -la /root

# du -h /root

You might have logged in and downloaded things without switching to another partition first.
Look there for a clean up of anything thats not required.

[chirpy]

That's a good point. You might also want to se if you have a /root/installd/ directory which you can most likely delete completely.

[devellion]

Hello... thanks for you help guys...

I dont have a directory called /root/installd/

# ls -la /root

Returns:

total 128
drwxr-x---   15 root     root         4096 Mar  1 18:52 ./
drwxr-xr-x   21 root     root         4096 Feb  9 10:53 ../
-rw-------    1 root     root          957 Feb  1 21:13 .accesshash
-rw-r--r--    1 root     root         1721 Jan 30 18:56 anaconda-ks.cfg
-rw-------    1 root     root         7879 Feb 28 14:47 .bash_history
-rw-r--r--    1 root     root           24 Jun 10  2000 .bash_logout
-rw-r--r--    1 root     root          234 Jul  5  2001 .bash_profile
-rw-r--r--    1 root     root          176 Aug 23  1995 .bashrc
drwxr-xr-x    4 root     root         4096 Jan 31 21:15 .cpan/
drwxr-xr-x    4 root     root         4096 Jan 31 21:42 cpanel3-skel/
drwx------    3 root     root         4096 Feb 16 02:41 .cpcpan/
drwx------    3 root     root         4096 Jan 31 20:59 .cpmysqlrpm/
-rw-r--r--    1 root     root          210 Jun 10  2000 .cshrc
-rw-r--r--    1 root     root           22 Feb  7 20:19 .forward
drwx------    2 root     root         4096 Jan 30 18:53 .gconfd/
-rwxr-xr-x    1 root     root           82 Jan 30 18:56 install_cpanel.sh*
drwx------    2 root     root         4096 Mar  1 06:14 .keychain/
drwxrwx---    2 operator mail         4096 Jan 31 21:31 mail/
-rw-------    1 root     root          485 Feb  9 12:59 .mysql_history
drwxr-xr-x    2 root     root         4096 Jan 31 21:15 public_ftp/
drwxr-xr-x    3 root     root         4096 Jan 31 21:15 public_html/
-rw-r--r--    1 root     root          141 Jan 30 18:56 READ_ME_FIRST
-rw-------    1 root     root         1024 Mar  1 02:41 .rnd
drwx------    3 root     root         4096 Jan  5 01:41 rvadmin/
drwx------    2 root     root         4096 Feb  7 23:45 .screen/
-rw-------    1 root     root            0 Feb  7 22:16 .securesslreqs
drwx------    2 root     root         4096 Mar  1 02:41 .spamassassin/
drwx------    2 root     root         4096 Feb  1 21:16 .ssh/
-rw-r--r--    1 root     root          196 Jul 11  2000 .tcshrc
-rw-------    1 root     root         6421 Mar  1 18:52 .viminfo
-rw-r--r--    1 root     root         1126 Aug 23  1995 .Xresources

# du -h /root
Returns:

4.0K    /root/.screen
4.0K    /root/.gconfd
708K    /root/.cpcpan/pingtimes
876K    /root/.cpcpan
428K    /root/.cpmysqlrpm/pingtimes
440K    /root/.cpmysqlrpm
4.0K    /root/.cpan/sources/authors
156K    /root/.cpan/sources
96K     /root/.cpan/build
256K    /root/.cpan
4.0K    /root/public_html/cgi-bin
8.0K    /root/public_html
4.0K    /root/public_ftp
4.0K    /root/mail
20K     /root/.spamassassin
4.0K    /root/cpanel3-skel/public_html
4.0K    /root/cpanel3-skel/public_ftp
12K     /root/cpanel3-skel
172K    /root/rvadmin/rvximages
396K    /root/rvadmin
4.0K    /root/.keychain
8.0K    /root/.ssh
2.1M    /root

I have no idea what I can and can't delete. It bothers me as the server is mission critical to my business. How can I find out what is safe and what isn't to delete?

[matt621]

You need to check your inboxes for all your accounts. Often times they run up to hundreds of megs of spam. Always the default address.

[devellion]

The server is only 2 weeks old but that could bu a thing... I will check.

Thanks.

[chirpy]

It's unlikely to be email. The space problem is on / not the /home partition where email is store. I would suggest you use the technique I've described in the past where you do the following from the top of the partition down:

du -h --max-depth=1 /

This will give you a space summary of the level you are on in the partition. If xyz subdir is the largest:

cd /xyz
du -h --max-depth=1 /
ls -laSh | more

This will then list the files in size order, if the space is taken up within another subdir cd into that and repeat until you find the problem file(s). Be very careful about deleting any files on your / partition. If you are unsure either ask here or hire someone who knows what they're doing.

[matt621]

I'm sorry. I spaced out his problem was with the root dir.

[chirpy]

Really? From his du it only shows a few MB of data - so what were the problem files in this case?

Edit: Sorry, just realised that I misunderstood what you meant be "spaced out"

[devellion]

I think I've figured it out....

I set CPanel to do a nightly back up of all sites to:

/backup which is now 579Mb

I guese I need to move the storage of backup to another partition.

Bingo!!

/home/backup would probably be the sensible option...


Thanks for your help guys I'm pretty sure thats the answer.

[devellion]

Problem solved...

28% free again. Thanks!!