It shouldn't be a problem.  I opened up the door of an L700 many times
without any problems.  You can even do it while backups are running.  If
the door is open when the library control server is trying to control
the robot, you might get some timeouts.  I'm not sure if the L700 queues
up or rejects robotic control commands when the door is open.

On Tue, 2003-08-19 at 14:22, Karl.Rossing AT Federated DOT CA wrote:
> I have opened the door on my SUN L400(Exabyte 220 library) with 2
> drives and 4 trays while netbackup was running to inject new media.
> 
> I didn't run into problems. I just made sure that the arm wasn't
> picking tapes.
> 
> For the L700 it might be different.
> 
> ______________________________________________________________________
> Karl-Frédéric Rössing
> Technical Analyst
> Federated Insurance Companies of Canada
> http://www.federated.ca maintenant disponible en Français 
> 
> veritas-bu-admin AT mailman.eng.auburn DOT edu wrote on 08/19/2003 01:03:54
> PM:
> 
> >  
> > L700 StoredgeTek Tape Library
> > NBU 4.5 MP3 on Solaris 8
> >  
> > Does anybody know if it is okay to open the door of the L700 robot 
> > hosted by the Master Server while Netbackup is still running? I just
> > want to inspect why two drives are DOWN. I plan on only having the 
> > door open long enough to inspect the drives and clear any problems. 
> > I can't wait to shutdown Netbackup because there are too many jobs 
> > running and queued all of the time and I have been waiting for three
> > days to look at these two DOWN drives.
> >  
> > Paul Griese
> > System Administrator
> > Telecheck Services
> > Houston, Texas
> >
> _____________________________________________________________________________
> > 
> > (c) 2003 TeleCheck International, Inc. THIS DOCUMENT, AND ANY 
> > ATTACHED INFORMATION: 1) IS PROPRIETARY, PRIVILEGED AND CONFIDENTIAL
> > PROPERTY OF TELECHECK UNDER APPLICABLE LAW, AND 2) IS INTENDED 
> > EXCLUSIVELY FOR INTERNAL USE BY TELECHECK EMPLOYEES AND INTENDED 
> > RECIPIENTS WITH A LEGITIMATE TELECHECK BUSINESS NEED THEREFORE. ITS 
> > REPRODUCTION, DISSEMINATION, DISTRIBUTION AND/OR DISCLOSURE, EXCEPT 
> > TO SUCH TELECHECK EMPLOYEES AND INTENDED RECIPIENTS, IS STRICTLY 
> > PROHIBITED . IF YOU ARE NOT SUCH A TELECHECK EMPLOYEE OR INTENDED 
> > RECIPIENT, OR THE EMPLOYEE OR AGENT RESPONSIBLE FOR DELIVERING THIS 
> > MESSAGE TO THE INTENDED RECIPIENT, YOU ARE HEREBY NOTIFIED THAT ANY 
> > REPRODUCTION, DISSEMINATION, DISTRIBUTION AND/OR DISCLOSURE OF THIS 
> > DOCUMENT, OR ANY ATTACHMENTS, IS STRICTLY PROHIBITED.
> > 
> > 
-- 
Jack L. Forester, Jr.
Sr. UNIX Systems Administrator
Lockheed Martin Information Technology
(304) 625-3946