Circular Directory Error and smaller than usual hard drives

Question

The OS is CentOS 6 with Parallels Plesk Panel 10 (64-bit).

Our df -h looks like this:

Filesystem            Size  Used Avail Use% Mounted on
/dev/sda1             4.0G  822M  3.2G  21% /
/dev/mapper/vg00-usr  4.0G  1.3G  2.6G  33% /usr
/dev/mapper/vg00-var  4.0G  2.6G  1.2G  70% /var
/dev/mapper/vg00-home 4.0G  136M  3.7G   4% /home
none                  3.9G     0  3.9G   0% /tmp

Until I deleted a massive file, /dev/mapper/vg00-var was at 100%. I've also rebooted the server. There appears to be two problems:

1. The Drive sizes look very small (4G) where it should be substantially larger (500G - 1TB)
2. Upon going a du -sh * inside the /var directory, this is the following output:

.

[root@xxx var]# du -sh *
39M  cache
8.0K db
8.0K empty
4.0K games
2.0G lib
4.0K local
24K  lock
17M  log
16K  lost+found
0    mail
du: WARNING: Circular directory structure.
This almost certainly means that you have a corrupted file system.
NOTIFY YOUR SYSTEM MANAGER.
The following directory is part of the cycle:
  `named/chroot/var/named'
156K    named
4.0K    nis
4.0K    opt
8.0K    parallels
4.0K    preserve
104K    qmail
152K    run
216K    spool
4.0K    tmp
474M    www
4.0K    yp

I'm assuming this is the cause of why the website on the server is doing odd things. Can you advise a way forward or things to try?

Answer 1

At the very least, I'd start by getting off that system immediately and forcing a FULL fsck of all the filesystems. At the point, you can assess the damage after that point.