disk space usage

[Ron Irving]

I performed the monthly backup and reboot recently, with no obvious problems, save one. All of a sudden, bdf reports /dev/vg00/lvol3 running at 99%. Before the reboot, it was at 40%. Maybe I'm panicking, but is this not cause for alarm?? lvol3 is mounted to /.

Please let me know

Ron the worry-wort

[James R. Ferguson · Accepted solution]

Hi Ron:

Sounds like you inadvertantly created a regular file in /dev. Look for things that don't belong there (principally non-special files). I'd expect to see something like "/dev/rmt/om" where you mistakenly typed the letter "o" instead of the number "0".

...JRF...

[Bill McNAMARA_1]

You probably have a core file somewhere.
Using a simple find construct you can search for large files and examine whether you want them or njot.

To avoid core disk space problems retune the kernel and/or
ln -s /dev/null core
although you'll loose on why did it core dump analysis.

Later,
Bill

[Christian Schulze]

Try
find / -xdev -type f -print | xargs ls -l | sort -rn -k5 | more

this will list all your files by size ...

maybe then you can identify a huge core or /dev/rmo file as mentioned above

Christian

[Patrick Paton]

Make sure all of your file systems are mounted. Writing data to a mount point can cause the root file system to fill up rather quickly.