Compaq AlphaServer DS20 Service Manual download pdf (Page 146)

B-2 AlphaServer DS20 Service Manual

B.1

RCM Overview

The remote console manager (RCM) monitors and controls the system remotely.

The control logic resides on the system board.

The RCM is a separate console from the SRM and AlphaBIOS consoles. The SRM

and AlphaBIOS firmware reside on the system board. The RCM firmware resides on

the server feature module and can only be accessed through COM1. The RCM is run

from a serial console terminal or terminal emulator. A command interface lets you

reset, halt, and power the system on or off, regardless of the state of the operating

system or hardware. You can also use RCM to monitor system power and

temperature.

You can invoke the RCM either remotely or through the local serial console

terminal. Once in RCM command mode, you can enter commands to control and

monitor the system. Only one RCM session can be active at a time.

•

To connect to the RCM remotely, you dial in through a modem and then type an

escape sequence that invokes RCM command mode. You must set up the

modem before you can dial in remotely.

•

To connect to the RCM locally, the console terminal has to be connected to

COM 1 and then you type the escape sequence at the SRM console prompt on

the local serial console terminal to enter RCM mode.

CAUTION: Do not issue RCM commands until the system has powered up. If you

enter certain RCM commands during power-up or reset, the system may hang. In

that case you would have to disconnect the power cord at the power outlet. You can,

however, use the RCM halt command during power-up to force a halt assertion. See

Section A.3 for information on halt assertion.

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Compaq AlphaServer DS20 Service Manual Page 146