TANDEM USE

TANDEM USE

Post by Teef » Wed, 23 Jan 2002 03:04:59



I  am kind of new to Pick.
  I was going through the last programmers tcl-stack and run into the
  Tandem command, tried it out , now I have the server and my pc locked
  in the same command mode.  I would appreciate some info. on this command
  but first can some help me unlock the 2 terminals.
   Thx. in advance
 
 
 

TANDEM USE

Post by mark bulle » Tue, 22 Jan 2002 21:23:24


Joe,

From help (Ref) on d3:

d3.doc       tcl.tandem
token        tandem
syntax       tandem port.number {(options}
category     TCL
type         Verb
terse        Logically link two devices to the same process.
desc         links the current port to another process. Any input or
output
             to either screen affects both screens.

             The port initiating the "tandem" command is the "master".
The
             process being attached is the "slave" or "target".

             If the slave process is a "phantom" process, the output
from the
             phantom is redirected to the master.

             The target device (the one attached to the slave) must be
             available on the given port. It may not be already attached
to
             another process.

             A "hotkey" sequence disconnects the link. The default
"hotkey"
             sequence is <escape>x. If an "esc-data" has not been issued
             previously, the process issues it automatically, to prevent
             getting locked out from being able to suspend "tandem".


> I  am kind of new to Pick.
>   I was going through the last programmers tcl-stack and run into the
>   Tandem command, tried it out , now I have the server and my pc locked
>   in the same command mode.  I would appreciate some info. on this command
>   but first can some help me unlock the 2 terminals.
>    Thx. in advance


 
 
 

TANDEM USE

Post by K. Powic » Wed, 23 Jan 2002 03:39:42


Without knowing what version of Pick you are using, it's a little difficult
to know the correct key sequence.

The only one I remember is to press and release the escape key (ESC) and
then press and release the letter x.  This should return you to your command
prompt.

You could also try breaking the process by pressing and holding the control
key "CTRL" and then press and release the backslash key \.

If this works you would find youself at a multiple colon prompt i.e. :: or
perhaps an *.  From here, type end or off.

You might also try going to another terminal and typing reset-user n, where
n is the hung terminal's line number.

Good luck.

A word of advice would be not to type commands that you're unfamiliar with.

K. Powck.


Quote:> I  am kind of new to Pick.
>   I was going through the last programmers tcl-stack and run into the
>   Tandem command, tried it out , now I have the server and my pc locked
>   in the same command mode.  I would appreciate some info. on this command
>   but first can some help me unlock the 2 terminals.
>    Thx. in advance

 
 
 

TANDEM USE

Post by Craig Taylor Equipmen » Wed, 23 Jan 2002 04:43:44


Or try tandem port.number (x to turn tandem off on that port.

tandem 85 (x

list-tandems may list ports that are tandemed.


> Without knowing what version of Pick you are using, it's a little
difficult
> to know the correct key sequence.

> The only one I remember is to press and release the escape key (ESC) and
> then press and release the letter x.  This should return you to your
command
> prompt.

> You could also try breaking the process by pressing and holding the
control
> key "CTRL" and then press and release the backslash key \.

> If this works you would find youself at a multiple colon prompt i.e. :: or
> perhaps an *.  From here, type end or off.

> You might also try going to another terminal and typing reset-user n,
where
> n is the hung terminal's line number.

> Good luck.

> A word of advice would be not to type commands that you're unfamiliar
with.

> K. Powck.



> > I  am kind of new to Pick.
> >   I was going through the last programmers tcl-stack and run into the
> >   Tandem command, tried it out , now I have the server and my pc locked
> >   in the same command mode.  I would appreciate some info. on this
command
> >   but first can some help me unlock the 2 terminals.
> >    Thx. in advance

 
 
 

TANDEM USE

Post by Tom Cros » Wed, 23 Jan 2002 08:41:46


<snip>

Quote:> A word of advice would be not to type commands that you're unfamiliar
with.

> K. Powck.

That reminds me of the time I was working on a MD Sequel system
(non-production) and wondered what the "flush" verb did. Found out real
quick......
 
 
 

TANDEM USE

Post by cis » Wed, 23 Jan 2002 10:43:17


On D3 the default is ESC x.  That is the escape key the lower case "X".

That should return you to your own process.

REB

Quote:> I  am kind of new to Pick.
>   I was going through the last programmers tcl-stack and run into the
>   Tandem command, tried it out , now I have the server and my pc locked
>   in the same command mode.  I would appreciate some info. on this command
>   but first can some help me unlock the 2 terminals.
>    Thx. in advance

 
 
 

TANDEM USE

Post by Domegro Daminge » Wed, 23 Jan 2002 19:54:42


That IS good advice , some i can give is to never,NEVER type in shutdown especialy on your 2nd day of work , I promise you the people is not going to be to happy with you

 
 
 

TANDEM USE

Post by Teef » Thu, 24 Jan 2002 04:11:43


To all who offered advice , thx a million.
     I am glad to say I have found great use for it 'tandem' as a
desk-help tool.

     As for venturing into unfamiliar territory ... I am sorry to say
but all   employers these days are looking for someone with experince.
I have not yet run into a pick system Adm/programmer or  IT personnel
for that matter who did not get their awakening thru. bring down ,
corrupting , or even crashing a system. I know the next comment will
be if I have ever heard of 'training' ! the answer is yes but remember
every instructor's ending  advice is the same, practice practice and
practice some more... am I doing wrong to listen??

 
 
 

TANDEM USE

Post by Patrick Latime » Thu, 24 Jan 2002 04:21:14


As my Mentor (not Adds) use to say
The First time is a *Learning Experience*
The Second time is a *Reminder*
The Third time is *Stupidity*

Try to avoid reminders because  Stupidity = UnEmployment

my 2, Patrick

P.S. The question

Question: Whats the difference between STARTSPOOLER and STARTSPOOLER (I

Employment and Unemployment (old Ultimate Joke)

<;=)


> To all who offered advice , thx a million.
>      I am glad to say I have found great use for it 'tandem' as a
> desk-help tool.

>      As for venturing into unfamiliar territory ... I am sorry to say
> but all   employers these days are looking for someone with experince.
> I have not yet run into a pick system Adm/programmer or  IT personnel
> for that matter who did not get their awakening thru. bring down ,
> corrupting , or even crashing a system. I know the next comment will
> be if I have ever heard of 'training' ! the answer is yes but remember
> every instructor's ending  advice is the same, practice practice and
> practice some more... am I doing wrong to listen??

 
 
 

TANDEM USE

Post by AntiSPA » Thu, 24 Jan 2002 08:16:44


You have a point about how a lot of us got experience from the school of
hard knocks, but the line is drawn at executing commands blindly.  The
nobility of the quest for experience may not be enough to keep you employed.
Read docs, ask questions, download and install your own release to work on,
get someone to create another virtual machine for you to hack up - these are
all ways to get experience without corrupting a live environment.  Sometimes
the best technician will know how to solve a problem without ever having
actually tried the solution before.  (Ever watch Star Trek?)  Learn the
commands in case you do find a need to use them, but don't execute
everything just to learn how they work.  Seriously, a lot of us know a lot
more than we use (and some of us have forgotten more than we know).

If you are on a live system, ask yourself some questions:
- What is this command or option supposed to do?
- If it works as documented, how many people will I affect by using it?
- Have I exhausted all sources of information about this command?  That is -
do I REALLY know how it is supposed to behave?
- If I know enough about it, do I really need to use it now?
- Can I create a safe environment in which to use it?
- What measures will I need to take to recover from a mishap (this is a
tough one).

Good luck,
Tony


Quote:> To all who offered advice , thx a million.
>      I am glad to say I have found great use for it 'tandem' as a
> desk-help tool.

>      As for venturing into unfamiliar territory ... I am sorry to say
> but all   employers these days are looking for someone with experince.
> I have not yet run into a pick system Adm/programmer or  IT personnel
> for that matter who did not get their awakening thru. bring down ,
> corrupting , or even crashing a system. I know the next comment will
> be if I have ever heard of 'training' ! the answer is yes but remember
> every instructor's ending  advice is the same, practice practice and
> practice some more... am I doing wrong to listen??

 
 
 

TANDEM USE

Post by Patrick Latime » Thu, 24 Jan 2002 08:40:08


Good job Tony. This is one of the best narratives of  the mind set
of an IT veteran  vs  someone in the *learning* mode I've seen.

<;=)- Patrick.

<snip>
If you are on a live system, ask yourself some questions:
- What is this command or option supposed to do?
- If it works as documented, how many people will I affect by using it?
- Have I exhausted all sources of information about this command?  That is -
do I REALLY know how it is supposed to behave?
- If I know enough about it, do I really need to use it now?
- Can I create a safe environment in which to use it?
- What measures will I need to take to recover from a mishap (this is a
tough one).

Good luck,
Tony

<snip>

 
 
 

TANDEM USE

Post by Mark Brow » Thu, 24 Jan 2002 11:38:13


STARTSPOOLER without options simply "wakes up" all the printers who then
check their queues to see if there's anything to do, then they go back to
sleep (sp.serialsleep)

STARTSPOOLER I or (I throws away its pointers to the printer device table,
the spooler queue (peqs) and the open queue list.  You basiclly loose all
your hold files and all the overflow they represented.  It DOES NOT kill
your printers, so if you had serial printers on the system, those ports are
now "hung" because there's no one to wake them up and if they do, there's
nothing for them to do and they go right back to sleep.  You have to kill
them manually.  So it's best to SP-KILL BD before you STARTSPOOLER I.

STARTSPOOLER C or (C only throws away the printer device table and open
queue list.  It converts all printer jobs to Hold status (if my memory
hasn't gone completely).

--
-------------------------------
Mark Brown
President/CEO
Computer Mgmt & Resource Consultants
714/537-4437

"Think where man's glory most begins and ends. And say my glory was I had
such friends."
William Butler Yeats


> As my Mentor (not Adds) use to say
> The First time is a *Learning Experience*
> The Second time is a *Reminder*
> The Third time is *Stupidity*

> Try to avoid reminders because  Stupidity = UnEmployment

> my 2, Patrick

> P.S. The question

> Question: Whats the difference between STARTSPOOLER and STARTSPOOLER (I

> Employment and Unemployment (old Ultimate Joke)

> <;=)


> > To all who offered advice , thx a million.
> >      I am glad to say I have found great use for it 'tandem' as a
> > desk-help tool.

> >      As for venturing into unfamiliar territory ... I am sorry to say
> > but all   employers these days are looking for someone with experince.
> > I have not yet run into a pick system Adm/programmer or  IT personnel
> > for that matter who did not get their awakening thru. bring down ,
> > corrupting , or even crashing a system. I know the next comment will
> > be if I have ever heard of 'training' ! the answer is yes but remember
> > every instructor's ending  advice is the same, practice practice and
> > practice some more... am I doing wrong to listen??

 
 
 

TANDEM USE

Post by Concerned_Netize » Sun, 03 Feb 2002 06:59:41



> <snip>

> > A word of advice would be not to type commands that you're unfamiliar
> with.

Wonderful advice. Were I not a programmer I would probably heed it.
 
 
 

TANDEM USE

Post by Concerned_Netize » Sun, 03 Feb 2002 07:14:41


<Snip>

Quote:> every instructor's ending  advice is the same, practice practice and
> practice some more... am I doing wrong to listen??

My first instructor said play. Wouldn't want to boss to catch me, but it's good advice.
I remember the first time I cold-started in the middle of a claim.... I learned not to trust
field engineers at that point. Good thing my boss told the customer they had to buy a
300,000 $ replacement system and they did. You learn by your mistakes. Sometimes you can even get bailed out of them.
 
 
 

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