On Friday 06 December 2002 7:36 am, Eben Yong wrote:
> I arrived at the office at about 6:15am this morning and was greeted by
> an 'unresponsive' HP3000-... Here are the symptoms:
>
> *       was able to get an HP prompt, but unable to log in (system would
> 'hang' after the HELLO statement)
>  if there
> are similar experiences, with known or highly suspect causes, I would be
> glad to hear of them.  Thanks.

One thing to check before shutting down/rebooting is the hard drives
[especially if external]  I've seen it happen where the system would be
"running"; anyone already logged on could issue some basic commands, people
in programs could continue, but new attempts to log on, run a program, or
(essentially) ANYTHING THAT TRIED TO ACCESS the disk that was off would
"hang".

If your "reboot" sequence included a powerdown/powerup sequence ("just to be
sure"), you could have masked this problem without realizing it.

powering up the disk (generally) brings the system back to a responsive state,
at which point a "clean" restart is probably desirable [a controlled
shutdown, that is]  This properly flushes disk caches, applies outstanding XM
transactions, or whatever to make sure that anything intended for the disk
that was "off" gets taken care of (or backed out).

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