3 Powering Off and Powering On the Server
This chapter provides information and procedures for powering off and powering on the server.
Power States
The server has three power states:
• Standby power
• Full power
• Off
To achieve the standby power state, plug the power cord into the appropriate receptacle on the
rear of the chassis. The front panel power button is not turned on. Full power occurs when the
power cord is plugged into the appropriate receptacle, and either the power is activated through
the iLO MP PC command, or the power button is activated. In the off state, the power cords are
not plugged in. Table 3-1 lists the server power states.
Table 3-1 Power States
DC Voltage
Applied
AC Voltage
Applied
Power Activated through the iLO MP PC
Command; or Front Panel Power Button
Activated?
Power Cable
Plugged Into
Receptacle?
Power States
NoYesNoYesStandby power
YesYesYesYesFull power
NoNoNoNoOff
NOTE: If the power restore feature is set to Always On through the iLO MP PR command,
the server automatically powers on to the full power state.
Powering Off the Server
Power off the server using the following methods if the server is in either the standby or full
power state:
• iLO MP PC command
• Power button
Powering Off the Server Using the iLO MP
To power off the server through the iLO MP, follow these steps:
1. Gracefully shut down the operating system. See Appendix B (page 117), or your operating
system documentation for more information.
2. Initiate a console session, and access the iLO MP Main Menu.
3. To access the Command Menu, enter CM.
4. To use the remote power control command, enter PC.
5. To power off the server, enter OFF.
6. To confirm the action, enter YES when prompted.
IMPORTANT: The main DC voltage is now removed from the server; however, AC voltage
for standby power is still present in the server.
7. Unplug all power cables from the receptacles on the rear panel of the server.
Power States 29
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