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*SOLVED* df and disk space used from du don't quite match [message #11470]

Sat, 24 March 2007 20:49

JimL
Messages: 116
Registered: February 2007

Senior Member

I ran out of disk (soft disk) in a VE the other day. I was generating oddles of cores when a processes started crapping out.
I did manage to remove all the extra processes, however df still reports the disk is almost full:

[root@imageserver /]# ls
bin dev home lib mnt proc sbin srv tmp var
boot etc initrd media opt root selinux sys usr
[root@imageserver /]# du -sh
582M .
[root@imageserver /]# df
Filesystem 1K-blocks Used Available Use% Mounted on
simfs 6889612 6356860 532752 93% /
[root@imageserver /]# df -h
Filesystem Size Used Avail Use% Mounted on
simfs 6.6G 6.1G 521M 93% /

But du sure doesn't think so. I think du is right, so how do I rectify this problem?

Thanks,
Jim.

[Updated on: Mon, 26 March 2007 08:30] by Moderator

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Re: df and disk space used from du don't quite match [message #11479 is a reply to message #11470]

Sun, 25 March 2007 07:12

dev
Messages: 1693
Registered: September 2005
Location: Moscow

Senior Member

There are at least 2 options:

1. Most likely you run out of disk space in host system (i.e. on /vz). In this case `df -h` inside VE reports how much disk space is *really* available, independant of the fact that VE didn't used it.
It is required for critical applications which use this statistics before doing something (e.g. rpm on package install/update).

2. you can try to remove /var/vzquota/quota.<VEID> file
and restart VE. It will cause quota reinitialization.

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Re: df and disk space used from du don't quite match [message #11485 is a reply to message #11470]

Sun, 25 March 2007 13:21

JimL
Messages: 116
Registered: February 2007

Senior Member

Thanks.

It is highly unlikely that I ran out of host disk space:

df -h
/dev/mapper/VolGroup01-sata
357G 71G 269G 21% /bigdata
[root@50dom0 log]# ls -l /vz
lrwxrwxrwx 1 root root 12 Feb 4 07:16 /vz -> /bigdata/vz/

But I didn't look before I removed the core files so it's possible.

After installing the latest kernel and rebooting, it seems to have cleared itself. Rebooting alone did not, however.

Thanks,
Jim.

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