In article <bc917e10.0410020813.3f624b97@posting.google.com >, ColdMan <alvintsh@hotmail.com> wrote:
> One question here is we do have a serial conenction to the remote
> machine but via a terminal switch. However, I have to telnet to the
> terminal switch first before I can logon to the server. We often
> encounter the remote machine hang and we are not able to telnet to it
> as the connection will be rejected by the server.
> As such, we normally need to send someone down to press the reset
> button.
>
> Do you think your solution will fit into my environment.

It should. The beauty is that the Service Processor is an independent
CPU chip running its own small mini-OS from firmware.

So it doesn't matter if the machine is hung or not, because a system
hang does not affect the service processor at all.

The SvP is silently waiting and watching the system at all times. It
jumps to life in two general situations:

a) system is halted or powered down
b) it sees the reset string transmitted through the serial console

So it doesn't matter if the system is hung. All that matters is if you
paste the reset string (sometimes it may take a few tries) through the
serial console. It doesn't matter if you see it echoed to screen or not.
It just has to be transmitted through the first serial port.

The SvP will see it, and take over, and bring up a SvP menu.

From there, you can power up the machine if you want.

The only way this will not work for you is if you do not have a remote
serial console to tty0. If you do, it will work as you desire.

-Dan