removing logical volume

[Jeff Hagstrom]

umount: cannot unmount /a : Device busy
LG: vg02-a VG: vg02 mount directory: /a

How do I check for activity in the filesystem so I can stop it? Or is there a different, easier way to remove vg01 & vg02?

[Pete Randall]

fuser /a

-or-

lsof

http://hpux.cs.utah.edu/hppd/hpux/Sysadmin/lsof-4.74/


Pete

[Jeff Hagstrom]

fuser comes back empty. umount says device is busy.

[HGN]

Hi

In case if you have not done this you can try,
fuser -c & fuser -k
then you unmount it

Rgds

HGN

[Jeff Hagstrom]

fuser -c -k /a brings back /a and then umount /a doesn't work.

[Rick Garland]

This is a job for 'lsof'

See what processes may be running in the filesystem.

You may have to kill a process or daemon or logging process.

The lsof utility can tell you what is using the area.

[Dave La Mar]

Jeff -
I hate to state the obvious, but since I burned myself.....
You are not in a directory on the volume mount point are you?

Regards,

dl

[Nick W]

(Dave),

Nice idea (make sure you are not in the directory you are trying to unmount), but I think it would be unlikely as then I would expect fuser to report the PID for the user's shell....??

Jeff
I go with an earlier suggestion to get hold of the excellent (non-HP) lsof utility and see what process is active in that filesystem (especially if there was any attempt to reclaim space by removing eg large logfiles....)

A reboot would also fix the problem - but that is not usually recommended unless you are desperate to get this resolved...
:-)

HTH
Nick