The execution of cntl-A console commands from a logical console via
the console command stopped working back when the ability to take/send
the logical console to a network connected DS/NS/telnet terminal started
working. If memory serves this happened around MPE/iX 5.0 or so.

                        Bob J. -- Ideal Computer Services
                        http://www.icsgroup.com


John Clogg wrote:
>
> I just tried it, just in case the capability had been added without my
> realizing it, and the cntl-A does *not* work from another terminal that has
> taken the console.  This was by design - the designers thought it best not
> to have someone be able to shut down your system remotely.  Perhaps your
> site had Telamon's Console Engine...
>
> -----Original Message-----
> From: [log in to unmask] [mailto:[log in to unmask]]
> Sent: Tuesday, January 30, 2001 10:45 AM
> To: John Clogg
> Cc: [log in to unmask]
> Subject: Re: [HP3000-L] Locked Console
>
> Well, it's been years since I've done it, so my memory may be faulty.  But I
> could have sworn that I'd done [CTRL-A] =SHUTDOWN using the :CONSOLE command
> on
> dial-up lines with a PC running Reflection 7.  I know it wasn't the remote
> console port, as we kept that connected to a support modem for HP to use and
> it
> was disabled unless we needed PICS to dial in.  I always came in through our
> modem pool as LDEV 23, 24, 25, 26, 27, or 28.  Again, I could have sworn I
> remembered doing the shutdown and then calling the computer room to tell the
> operator whether I wanted a warmstart or coolstart since I lost access to
> the
> console at that point.  But maybe I'm just remembering shutting down
> everything
> else (we had a very complicated application shutdown procedure) before
> having
> the operator do the actual system shutdown.  As I said, it's been a long
> time,
> and I can't test it now, as I haven't had access to a 3000 since 1997.
>
> Wayne
>
> John Clogg <[log in to unmask]> on 01/30/2001 10:16:41 AM
>
> Please respond to John Clogg <[log in to unmask]>
>
> To:   [log in to unmask]
> cc:    (bcc: Wayne Brown/Corporate/Altec)
>
> Subject:  Re: [HP3000-L] Locked Console
>
> This isn't exactly true.  Yes, you can reboot via dial-in if you are using
> remote console support, but that is essentially hooking your remote console
> port (LDEV 21) in parallel with LDEV 20.  Just using the CONSOLE command to
> take the console won't work because you can't do a cntl-A nor a cntl-B.  If
> the console port is hung, rather than the terminal, you may be faced with an
> ungraceful shutdown.
>
> -----Original Message-----
> From: Wayne Brown [mailto:[log in to unmask]]
> Sent: Tuesday, January 30, 2001 7:39 AM
> To: [log in to unmask]
> Subject: Re: Locked Console
>
> Since you can take the console, I would try clearing the main console with
> :ABORTJOB and :ABORTIO, and even cutting the power to the console OFF and ON
> again, before rebooting.  That has sometimes cleared up "hung console"
> problems
> for me.  But if necessary, then yes, you can reboot from another console.
> In
> fact, I've rebooted systems from home over a dial-up line.  The only problem
> is
> that once the system starts coming back up, it will revert to the original
> console, so you want to make certain you have a working terminal on that
> port
> when you reboot.
>
> Wayne
>
> "Driscoll, Ken" <[log in to unmask]> on 01/30/2001 09:02:03 AM
>
> Please respond to "Driscoll, Ken" <[log in to unmask]>
>
> To:   [log in to unmask]
> cc:    (bcc: Wayne Brown/Corporate/Altec)
>
> Subject:  [HP3000-L] Locked Console
>
> Hello List,
>
> We have a locked console on our 3000 979.  I issued the commands to unlock,
> CTRL - S, then CTRL - Q with no results.
>
> It is not affecting the users and I can take the console.
>
> Has anyone rebooted the 3000 from another console?  Is it possible?
>
> Any ideas?
>
> Thanks in advance
>
> Ken Driscoll
> MAHP Operations
> Ph: (319) 584-4862
> Fax  (319) 556-5134
> [log in to unmask]