Jay Maynard wrote:
On Fri, Jul 22, 2005 at 07:50:00AM -0700, Edward E. Jaffe wrote:
As I see it, the problem isn't the fact that CANCEL must be issued.
Rather, it's the myriad ways that a "normal" shutdown is requested that
is the real problem. (Z, C, P, $P, *RETURN, SETRRS, F xxx,SHUTDOWN,
etc., etc.)
Oh, I agree that's a problem too. It's just that having to CANCEL something
to shut it down "normally" is worse than the rest of them.
If all normal shutdowns were requested by CANCEL, I wouldn't have a
problem with it. Though, given that STOP exists, I agree it is
preferable to have two different requests: one for normal termination
and one for abnormal termination.
And then there are all the times CANCEL doesn't work and you're told to
issue FORCE xxx,ARM. And there are all the times that doesn't work
either, so you're forced to issue plain FORCE xxx. And there's the fact
that FORCE xxx,ARM really is really just a special form of CANCEL and
has nothing in common with FORCE other than the name of the command. And
then there's a BCP component called ARM that implements an ARMRESTART
operand on CANCEL. The whole thing is crazy!
Like I said, anyone new to the platform would be scratching their head
with this madness.
After all this time, I still can't explain why VTAM responds to the HALT
command.
Because TCAM did. Now, as to why they made that choice for TCAM...
Inquiring minds want to know.
--
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| Edward E. Jaffe | |
| Mgr, Research & Development | [EMAIL PROTECTED] |
| Phoenix Software International | Tel: (310) 338-0400 x318 |
| 5200 W Century Blvd, Suite 800 | Fax: (310) 338-0801 |
| Los Angeles, CA 90045 | http://www.phoenixsoftware.com |
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