Most probable reason this could happen is hdisk307 is kept open by
some application or being used by other application other
than LVM.
you can check ps -ef | grep hdisk307 and see if you see any
application using this hdisk.

u can also try fuser to see if any process has this device open.
stopping these should close the device.

If the device is open then rmdev will fail with busy status.

regards
sudhir
On Jul 14, 1:26 pm, ser...@somewhere.on.il.pw.edu.pl wrote:

Hi,

It's been a while since I've dealt with AIX, but a customer of ours
wants to buy a 2nd user RS/6000 44P and load AIX 5.3. Is this version
of AIX compatible with this harware? I've just spent an hour "lost in
space" on the IBM web site and can't see a list.

Many thanks,
Pete.