[log in to unmask] wrote:
> Jan,
>
> I stated that DTCs are less important because (I assumed) there are so many
> ways to work around them.
>
> If there is a DTC implementation that cannot be worked around with some
> other hardware or software solution, it's probably important to speak up
> about it.
>
> -dtd
>
> Jan Gerrit Kootstra <[log in to unmask]>@RAVEN.UTC.EDU> on
> 02/03/2002 11:02:29 PM
>
> Please respond to Jan Gerrit Kootstra <[log in to unmask]>
>
> Sent by: HP-3000 Systems Discussion <[log in to unmask]>
>
> To: [log in to unmask]
> cc:
> Subject: Re: [HP3000-L] MPE emulator
>
> David,
>
> Why are DTC's less important?
>
> David T Darnell wrote:
>
> > I'm no Computer Scientist, but I did get a four year degree in CS from a
> > real University.
> >
> > Seems like a hardware emulation could be superior to an OS emulator in
> many
> > ways, but I have the following questions or comments:
> >
> > 1) Would hardware emulation take more processing power than an OS
> emulator?
> >
> > 2) Does your VAX emulator provide bridges or gateways to the native OS or
> > hardware? (Is such even desireable?)
> >
> > 3) For MPE to run directly (ie. loaded directly from HP tapes) wouldn't
> you
> > have to emulate the entire HP3000 architecture?
> >
> > 4) Could you emulate multiprocessor 3K hardware config (or, would you
> need
> > to?)
> >
> > 5) Seems that if you implement a truely portable HP3K hardware
> > implementation, as more modern host hardware becomes available, you could
> > end up with a more powerful MPE box than you could ever have with real 3K
> > hardware - cheaper too!
> >
> > 6) How much would we be restricted to peripherals and storage that are
> > compatable with a real HP3K, and how much could we use non-3K components
> > (ie. tape drives, DASD, NICs, DTCs[less important]?
> >
> > Thanks,
> >
> > Dave Darnell
> >
> > Robert Boers <[log in to unmask]>@RAVEN.UTC.EDU> on 02/03/2002
> > 02:02:19 AM
> >
> > Please respond to Robert Boers <[log in to unmask]>
> >
> > Sent by: HP-3000 Systems Discussion <[log in to unmask]>
> >
> > To: [log in to unmask]
> > cc:
> > Subject: Re: [HP3000-L] MPE emulator
> >
> > It is correct that we did not get much response about my note about
> > hardware
> > emulation. Possibly because our experience with the VAX and PDP-11
> > emulators
> > is that the concept is often confused with Operating System emulation,
> and
> > the assumption is that recompiling would be necessary or that not all
> > applications will run.
> >
> > The hardware emulators we build are operating system independent. The
> demo
> > we use to show the concept is to unplug a SCSI system disk from a VAX,
> plug
> > it into a SCSI port of a PC and boot VMS (or another VAX operating
> system)
> > from it. We do not need to convert the binary VAX code in any way or
> form.
> > Performance is not an issue, we have reached VAX 7000 Dhrystone
> performance
> > on a PC.
> >
> > The emulator engine we use is likely flexible enough for the HP3000
> > hardware
> > (we use the same for PDP-11 and VAX). The core VAX emulator prototype
> (CPU,
> > memory, disks) took less than 4 months to develop.
> >
> > It took us about a year to convince Compaq to support their software on
> our
> > VAX emulator as any other VAX. We did that by passing their VAX hardware
> > diagnostics and architecture tests. They now offer very reasonably priced
> > VMS transfer licenses
> > http://www.openvms.compaq.com/openvms/sri-charon-vax-emulator.html
> >
> > Robert Boers
> > CEO Software Resources International
> >
> > "Jerry Leslie" <[log in to unmask]> wrote in message
> > news:a3eo96$ki9$2@joe.rice.edu...
> > > Wyell Grunwald ([log in to unmask]) wrote:
> > > : PDP machines and VAX machines have an emulator out there that runs
> > > : on Windows 2000. This seems like a great idea for MPE ! How come
> > > : there is not more excitement about this ? See:
> > > : http://www.softresint.com/
> > >
> > > Dunno, a gentleman from SRI posted an article about their emulation
> > > technology a few weeks ago, but didn't get much response.
> > >
> > > --Jerry Leslie (my opinions are strictly my own)
> >
> > * To join/leave the list, search archives, change list settings, *
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> >
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>
> --
> Regards,
>
> Jan Gerrit Kootstra
> System Engineer
> PinkRoccade Online BV
> PhD Student CFD and Numerical Math
> University of Groningen (RuG)
> [These opinions and remarks are my own, and may not reflect policies of
> PinkRoccade or RuG.]
>
> * To join/leave the list, search archives, change list settings, *
> * etc., please visit http://raven.utc.edu/archives/hp3000-l.html *
David,
For those who still have DTC's, some engineers at the dutch HP Response Center
recommend to use their HPe3000 to manage DTC instead of OpenView DTC
manager on Windows 95.
I think we are not the only site that still uses DTC's, so that is why I would
like the DTC management functions or emulation functions to be included in the
emulator.
--
Regards,
Jan Gerrit Kootstra
System Engineer
PinkRoccade Online BV
PhD Student CFD and Numerical Math
University of Groningen (RuG)
[These opinions and remarks are my own, and may not reflect policies of PinkRoccade or RuG.]
* To join/leave the list, search archives, change list settings, *
* etc., please visit http://raven.utc.edu/archives/hp3000-l.html *
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