| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 631.1 | Cannot have your cake and eat it. | SUPER7::HUGHESA | Swimming against the tide @#%* | Wed Mar 01 1995 09:20 | 21 |
|
Edmond,
You can use the S3 switch to redirect the console from the graphical
display to a standard TTY. If you do this you can halt the system
and have exactly the same functionality as with any other VAX. However
you loose the graphical head.
If you require the graphical head, you can redirect opcom messages to
one of the TTY's in the back of the box using a little command
procedure like the one below in your startup.
The problem is that you cannot halt the system or "BE" the console in
this manner.
Andy.
$ DEFINE SYS$COMMAND TTA3: ! TTA3 is the DEC423 port on the back
$ REPLY/ENA
$ DEASSIGN SYS$COMMAND
$ exit
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| 631.2 | | OPG::SIMON | | Wed Mar 01 1995 09:49 | 34 |
| Edmond,
just to make sure I understand what you are trying to achieve.
In CASE 1 you have a VAX 4000 model 90 server which you wish to use PCM to
manage, and in CASE 2 it is a workstation rather than a server. Assuming
this is the case both the cases below are valid. In the case of the server
the console is redirected and all messages and control are from the comm
port, access to the >>> prompt for booting ans a login when the system is up.
In the workstation case the >>> prompt is directed to the comm port and so
you boot the system from there. All messages are relaye to that port, but
the graphics head still gets the X-Server started and the user can log on
and use X applications.
In both cases the machine can be halted from the Comm port.
CASE 1: if I switched to the alternate com port as the console port,
all the console messages should send to this alternate com port so that
I can use the PCM to capture all the console messages. If that was the
case, I assume PCM can monitor and control this VAX 4090A as other VAX
servers which provide the console port such as to halt the server to
install other layer prodcuts or maniplate all the captured messages. Is
this assumption correct?
CASE 2: if I still want to use the color monitor as the console to run
graphical applicaiton and I use DCL commends to redirect all the console
messages to the alternate com port as provided by the VAX4090A w/s, can
I still use PCM to capture all these console messages? Can I halt this
VAX4090A by the PCM workstation as same as directly connected to the
console port? Are there any special ways other than using DCL commends
to redirect all the console messages to the alternate com port?
Cheers Simon...
|
| 631.3 | | CSC32::BUTTERWORTH | Gun Control is a steady hand. | Wed Mar 01 1995 18:18 | 41 |
| > You can use the S3 switch to redirect the console from the
>graphical display to a standard TTY. If you do this you can halt the
>system and have exactly the same functionality as with any other VAX.
>However you loose the graphical head.
This is incorrect. If you toggle the S3 switch and power-cycle the
system the MMJ serial line is now the console port and when you boot
the system DECWIndows will start and operate normally. If this was a
DECStation then what you said is correct. You can't have both with
those systems becuase of the way the server code ties to the
/dev/console device.
Re Edmond and scenario 2.
If you choose not to toggle the S3 switch, the workstation monitor and
keyboard is "the console"(OPA0: device) and you will not be able to halt
the system from the MMJ serial line. Certainly you can send opcom and
broadcast messages there but anything that is sent specifically to OPA0
is not sent to the MMJ serial line as it isn't OPA0.
The best solution here is for you to toggle the S3 switch and use the
MMJ line as the console port. You have everything to gain and nothing
to lose. Quite frankly that switch was put there to accomodate having
an alternative console to the graphics head hence it's name "Alternate
Console Switch".
Regards,
dan
If you require the graphical head, you can redirect opcom
messages to
one of the TTY's in the back of the box using a little command
procedure like the one below in your startup.
The problem is that you cannot halt the system or "BE" the
console in
this manner.
|
| 631.4 | Need more clarification | HGODCS::EDMONDLEUNG | | Thu Mar 02 1995 01:57 | 26 |
| Thanks for all your information. First of all, the VAX 4090A is a
workstation ( I think it's a new model compared with VAX 4090) with a
color grahic monitor. I am a little confusing on the answers and I try
to summarize what I understand so far.
If I used the S3 switch, the alternate com port would become the
console port and I could use PCM to capture/maniplate console messages
and halt the system. One thing is not clear enough, will the DECwindows
still start up on the color graphic monitor and operate normally
because it is a VAX workstation instead of a DECstation? Pls clarify.
If I didn't use the S3 switch only by re-directing all the console
messages to the alternate com port, I could only capture the messages
using the PCM but I would loose the control of this VAX4090A such as
halt the system from the PCM's station. On the other hand, the color
graphic monitor could still operate properly and run all the graphic
applications. Is that correct?
Actually, I hope I could try that out in our site. Unfortunately, we
don't have such VAX4090A in our office and the customer wants to
clarify the function of PCM on the VAX4090A.
Thanks again and hope someone can clarify a bit more on this.
Edmond
|
| 631.5 | Clarification!!! | OPG::SIMON | | Thu Mar 02 1995 08:42 | 34 |
| Edmond,
If I used the S3 switch, the alternate com port would become the
console port and I could use PCM to capture/maniplate console messages
and halt the system.
YES
One thing is not clear enough, will the DECwindows still start up on the
color graphic monitor and operate normally because it is a VAX workstation
instead of a DECstation? Pls clarify.
YES Decwindows will start under OpenVMS on a Vaxstation 4000 90. The problem
outlined in the SPD is with Decstations running ULTRIX.
If I didn't use the S3 switch only by re-directing all the console
messages to the alternate com port, I could only capture the messages
using the PCM but I would loose the control of this VAX4090A such as
halt the system from the PCM's station.
If the switch is not toggled to set the async port as the alt console, the comm
port acts just like a normal terminal port, i.e. you get a Username prompt when
you hit CR etc. No messages sent to the port by default.
On the other hand, the color graphic monitor could still operate properly
and run all the graphic applications. Is that correct?
As I said above, the Graphiics head will work in either mode on the Vaxstation,
so this is a non-issue.
Hope that clarifies.
Cheers Simon...
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