It's been a long time since I was a User Interface engineer,
but I can offer you some insights.  The "Unable to create new
session" error is issued when MPE cannot obtain all the
resources a session needs.  Since you've already checked
the JOBFENCE, you need to look deeper.  Are other system
tables full?  Can the user create a $STDIN and a $STDLIST
(i.e. is the Spooler up & running & not full of spoolfiles)?  Etc.
It could be any number of reasons when new sessions can't
be created.

Jon Cohen
Commercial Systems Division
Hewlett-Packard


Ian Sargent wrote in message ...
>Hi folks,
>
>I have just been delivering an MPE/iX HPVC course and a
>student (with VERY little experience) came up with a question
>that I cannot answer, for two reasons:
>
>1. I don't have access to his system so I don't know the state
>    or what is running on it etc etc
>2. I have never come across this before.
>
>Anyway, it would appear that his Job and Session limits are
>set to 50 or 60 and Jobfence set to 0 but with only 25 (approx)
>sessions currently running. He (users) have received "Unable
>to create new sessions.." messages. He does not know, yet,
>how to monitor the system or to find out what is going on as
>he has been given the system after the previous admin left! In
>other words he may have been handed a 'can of worms'?!
>
>I guess the biggest problem at this point is not knowing what
>is actually running on the system but.....
>
>Anyone have any idea's about this or has anyone seen this
>before?
>
>I believe he is based in the Houston area and any suggestions
>would be appreciated so that I can feed back to him. If anyone
>is in the Houston area that would be willing to assist I will
>get his permission to forward detail etc.
>
>Thanks in advance. Please email me at the address below.
>
>Regards
>Ian
>______________________________________
>Ian Sargent
>Education & Training Consulting Services Ltd
>email:  [log in to unmask]
>www:  http://www.etcs.co.uk
>Tel/Fax: 44 (0)1344 644579
>______________________________________
>
>
>