Roger,
I am aware of this problem.  The only way I have been able to do this is
with a KSH script that does a dsmadmc command in the backround and do a
sleep for the proper amount of time or an elaborate script to process the
output of the q mount after issuing a dismount against the volume and
waiting until it is complete.  What I have not not tried is to see if you
used a dismount command after your commit with a commit following it and
then the update command.  It may be just enough to put the volume in a
dismounting status to free the lock for update.

By the way, what is your MOUNTRETENTION for the device class?

Paul D. Seay, Jr.
Technical Specialist
Naptheon, INC
757-688-8180