You have a file locking problem. du shows disk in use, but df shows disk
committed. Use lsof to identify the file that has disk space reserved but
no longer exists. man (8) lsof
--On February 12, 2010 5:39:44 PM -0300 Fernan Aguero
<fernan.agu...@gmail.com> wrote:
Hi,
I have a box (7.2-STABLE, amd64) that is currently showing some disk
usage problems. It all started with apache generating huge logs from
one of the mod_perl applications that is undergoing testing. So the
/var partition was getting full.
We removed all logs that were causing the problem, but even though du
shows some 700 Mb of usage, df shows that the disk is full (-1.5 Gb):
[fer...@omega ~] sudo du -hc -d1 /var/
Password:
2.0K /var/.snap
423M /var/account
6.0K /var/at
2.0K /var/audit
18K /var/backups
4.0K /var/crash
6.0K /var/cron
53M /var/db
2.0K /var/empty
2.0K /var/heimdal
219M /var/log
14M /var/mail
4.0K /var/msgs
48K /var/named
2.0K /var/preserve
44K /var/run
2.0K /var/rwho
16K /var/spool
76K /var/tmp
24K /var/yp
2.0K /var/games
710M /var/
710M total
[fer...@omega ~] df -h
Filesystem Size Used Avail Capacity Mounted on
/dev/mirror/gm0s1f 18G 18G -1.5G 109% /var
I've been googling around, and I understand why df and du might be
reporting disk usage differently. However, I can't solve this issue
and reclaim unused disk space ... applications (apache, mod_perl) are
prevented to write to /var and this is causing us problems.
We've already tried rebooting the box, restarting the syslog,
newsyslog daemons, to no avail. df keeps showing >100% disk usage
(-1.5 Gb of remaining disk space) in all cases. We've even rebooted
the box with all apache instances turned off in rc.conf ... i.e.
without any but the most basic services running (sshd) ...
This box is essentially a web server, no other services are being run.
Any suggestions as to what to try next?
Thanks in advance,
Paul Schmehl, If it isn't already
obvious, my opinions are my own
and not those of my employer.
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