NonStop S-Series Operations Guide (G06.29+)

Starting and Stopping the System
HP NonStop S-Series Operations Guide—522459-009
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Emergency Power-Off Procedure
3. A message box prompts you to confirm the power off system action. To power
off, click OK.
4. Shut off AC power to all peripherals and subsystems.
The system is powered off, and you are automatically logged off of the Low-Level
Link.
•
To power off a stopped system after system discovery:
1. Select Display>Actions.
2. The Actions dialog box appears. In the Actions box, select Power Off.
3. Click Perform Action.
4. A message box prompts you to confirm the power off system action. To power
off, click OK.
5. Shut off AC power to all peripherals and subsystems.
Emergency Power-Off Procedure
To prevent the batteries from being drained, power off the system using OSM, TSM, or
SCF before unplugging the system from AC power or using the emergency power-off
(EPO) switch.
If your site is not equipped with an EPO switch, unplug the enclosures and peripherals
from the wall outlets. Unplugging a system without performing the power-off procedure
causes the system to continue running and to draw current from the batteries. For
more information, refer to Section 15, Power Failures: Preparation and Recovery.
If your site is equipped with an EPO switch, you can use it to remove AC power from
your entire system. For more information on the EPO system, see the NonStop
S-Series Planning and Configuration Guide.
Recovery Operations for Stopping or Powering
Off the System
If all processors in the system have been halted and you are unable to log off, press
Alt-F4 to exit the OSM or TSM Low-Level Link.