topic Re: My root "/" FS is full in Operating System - HP-UX

My root "/" FS is full

George Nikoloudis_1 — Wed, 13 Mar 2002 16:22:27 GMT

Hello to all
I have a problem with my root FS
When I am doing bdf I see the below

Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 262144 262144 0 100% /
/dev/vg00/lvol1 119637 34741 72932 32% /stand
/dev/vg00/lvol7 2621440 1553414 1012057 61% /var
/dev/vg00/lvol6 2097152 637578 1374403 32% /usr
/dev/vg00/lvol5 1048576 519132 496390 51% /tmp
/dev/vg00/lvol4 2097152 1308423 740880 64% /opt
/dev/vg00/lvol8 53248 6363 44592 12% /home

The "/" is 100% full. I tried everything like lsof, du,df and I cannot find what is happening. This happened very suddenly.

Can you please Help, It is vary urgent

Re: My root "/" FS is full

John Payne_2 — Wed, 13 Mar 2002 16:28:17 GMT

Have you looked all over for some large file sitting somewhere? (An example might be an inordinately large /etc/rc.log)

Has your system been down in single user mode lately? If that was the case, it may be possible that you stuck something under /opt and you do not see it...

If you remove something like a large /etc/rc.log or other open file, the space will not free until after a reboot.

Good luck.

John

Re: My root "/" FS is full

Robin Wakefield — Wed, 13 Mar 2002 16:29:05 GMT

Hi George,

Look in /dev/rmt, someone may have written to a file om instead of 0m.

Also try:

find / -xdev -mtime 0 -size +100000c -type f | xargs ls -ld

if you can run it of course, and see what's been modified today, and is greater than 100k bytes.

Rgds, Robin

Re: My root "/" FS is full

Helen French — Wed, 13 Mar 2002 16:29:09 GMT

Hi George,

Try these commands:

# find / -xdev -type f -mtime -1 -exec ll {} \; > /tmp/newfiles

This will list you the newly created files ( 1 day ) in the system. As you have all other FS mounted under /, the search will list you all new files and may take some time to finish.

# find / -xdev -size +10000 -exec ll {} \; > /tmp/bigfiles

will give you a list of all big files ( >10000) under root.

Check the syslog file for any error messages.

HTH,
Shiju

Re: My root "/" FS is full

Sandip Ghosh — Wed, 13 Mar 2002 16:29:40 GMT

First of all , if you are having rot prompt from any window go to /dev/rmt directory
There you should find some big files. remove that.

then go to /etc /sbin /dev /bin directories and give du -sk *. It will give you the filesize in MB. Look for any big file which is not required and delete it.

Try to run cleanup -F

Sandip

Re: My root "/" FS is full

Bill McNAMARA_1 — Wed, 13 Mar 2002 16:30:16 GMT

Common errors are in /etc/

you do a dd if=disk of=tape
but not the right device file, thus a file is created the size of disk...! until / fills/.

Check /dev/ using ll

Later,
Bill

Re: My root "/" FS is full

A. Clay Stephenson — Wed, 13 Mar 2002 16:30:59 GMT

the best thing to do is a du -k and look for large directories and then narrow your search. The very first place to look is in /dev. There sould be no large files (or for that matter no regular files at all). It is very easy to do a tar cvf /dev/rmt/Om (the letter 'O') rather than /dev/rmt/0m (zero).

The root filesystem should grow hardly at all after system setup.

You should also look for large core files.

Re: My root "/" FS is full

Peter Kloetgen — Wed, 13 Mar 2002 16:32:09 GMT

Hi,

first of all you should try to find the files/directories which cause the full filesystem:
cd /path/to_directories_where_you_changed_thing

find . -size 1000 -exec ll {} \;

perhaps you can cleanup your root filesystem by deleting unnecessary things...

Allways stay on the bright side of life!

Peter

Re: My root "/" FS is full

pap — Wed, 13 Mar 2002 16:37:47 GMT

Hi George,

Simplest thing is to do du-k and will give you disk usage by files there you can figure it out which directory/file is occupying more space.

LAter delete those identified files.

Thanks,

-Piyush.

Re: My root "/" FS is full

Sanjay_6 — Wed, 13 Mar 2002 16:38:35 GMT

Hi George,

Probably someone was trying to take a backup and misspelled the device file name. Look for any files in /dev directory.

if your deivce is /dev/rmt/0m and you misspell it as /dev/rmt0m it will create a file rmt0m in /dev directory and woll start backing up to this file.

Hope this helps.

Regds

Re: My root "/" FS is full

Ceesjan van Hattum — Wed, 13 Mar 2002 16:41:24 GMT

Hi,

Maybe some memorydump:
find / -name core
or
find / -name core -exec rm {} \;

succes,
Ceesjan

Re: My root "/" FS is full

Bill McNAMARA_1 — Wed, 13 Mar 2002 16:55:48 GMT

Hey George,

check this link out:
http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x316efd3f91d3d5118ff40090279cd0f9,00.html

!

Later,
Bill