[ale] HELP - Out of Storage on /

[Lightner, Jeff]

The mismatch between du and df is often caused by having deleted a file that is still "open".   When you do that only the name is removed - the inode and data are still there.

This situation can be cleared by a reboot as it will kill all processes including whichever one is holding the file "open".

If you can't reboot you can run "lsof |grep REG" it will show you all regular files that are "open".  Look for a large size for REG without a file name.   You can then examine the PID associated with that and determine if it is something safe to kill then kill it to free up the "open" file.





-----Original Message-----
From: ale-bounces at ale.org [mailto:ale-bounces at ale.org] On Behalf Of JD
Sent: Friday, December 09, 2011 11:52 AM
To: Atlanta Linux Enthusiasts
Subject: Re: [ale] HELP - Out of Storage on /

Thanks. Nothing found on the /dev/sda1 partition.

find, du and df all showing the same bug?

I dropped the size param from larger than 200M to just 100M to ensure it was
actually working. Then it found 3 files - an amarok cache and 2 devices under
/sys/devices/pci0000

Other ideas?





On 12/09/2011 11:34 AM, James Sumners wrote:
> `find / -type f -size +200M 2>/dev/null`
>
> On Fri, Dec 9, 2011 at 11:29, JD <jdp at algoloma.com> wrote:
>> 20GB partition mounted on /.
>> df is reporting 100% used on /.
>> If I add up all the reported storage, only 4.7GB is used.
>>
>>
>> $ \df -k
>> Filesystem           1K-blocks      Used Available Use% Mounted on
>> /dev/sda1             19501440  19497112      4328 100% /
>> none                   4088752       348   4088404   1% /dev
>> none                   4093728         0   4093728   0% /dev/shm
>> none                   4093728       600 4093128   1% /var/run
>> none                   4093728         0   4093728   0% /var/lock
>> none                   4093728         0   4093728   0% /lib/init/rw
>>
>> I can't figure out which files are using all the storage. I know this sounds
>> really dumb.  Removed the other physical partitions from the du -s listing.
>>
>> $ sudo \du -sk
>> 8072    /bin/
>> 36644   /boot/
>> 12980   /etc/
>> 52      /home/
>> 318052  /lib/
>> 12460   /lib32/
>> 58952   lost+found/
>> 12      /mnt/
>> 1156    /root/
>> 10692   /sbin/
>> 0       /sys/
>> 16      /tmp/
>> 3702072 /usr/
>> 585264  /var/
>>
>> It is an Ubuntu Server x64 10.04.3 (up to date patched) system mainly used for
>> file storage and running KVM VMs.
>>
>> * Disabled ureadahead and rebooted this morning hoping that was the issue. It
>> wasn't.
>> * Forced an fsck and rebooted this morning. The numbers above are post-reboot.
>>
>> Any ideas to find the disk sucking files?
>
>
>
>


--
JD Pflugrath
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