HP LH4r HP Netserver LH 3000 Installation Guide - Page 34

Sleep States ACPI

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Chapter 2 Controls, Ports, and Indicators 2. Follow instructions in your network operating system (NOS) documentation to gracefully shut down all networking software and applications. 3. Press the Power switch to shut down the HP NetServer. See Figure 2-3. Normally, this completes the procedure. Sleep States (ACPI) The sleep states are available if your NOS supports power management based on the ACPI (Advanced Configuration and Power Interface). Sleep state is one of reduced power use. This state ends when the NetServer detects activity (mouse, keyboard, or certain types of LAN activity) and returns to a fully operational state. In this sleep state, the NetServer appears to be off, indicated by no display on the monitor and no activity for the CD-ROM or internal hard drives. However, ACPI control provides at least three power states and depending on the NOS and its ability to change the sleep state program. l The first state is normal power On. ◊ To go to a fully powered-on state, press the front panel Power switch for less than four seconds (default). ◊ To go to a sleep state, press the power switch for less than four seconds. l The second state is a sleep or suspend state. In this state there are no internal operations taking place, except for the internal clock and the cooling fans. This includes no activity for the CPUs, CD-ROM, or internal hard disk drives. The NetServer appears to be off except for the sound of the fans and the active LCD display on the front panel, which indicates System is in ACPI sleep mode and the green power LED is flashing on and off. ◊ To enter a sleep state, press the Power switch for less than 4 seconds. ◊ To exit a sleep state, press the power switch for less than 4 seconds and full operation is restored, including the LCD display and the power LED. l The third state is the normal power shutdown. All activity stops except the internal clock and the front panel LCD display, which reads System is powered off, unless the power cord is removed from the power source. 26

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Chapter 2
Controls, Ports, and Indicators
26
2.
Follow instructions in your network operating system (NOS)
documentation to gracefully shut down all networking software and
applications.
3.
Press the Power switch to shut down the HP NetServer. See Figure 2-3.
Normally, this completes the procedure.
Sleep States (ACPI)
The sleep states are available if your NOS supports power management based on the
ACPI (Advanced Configuration and Power Interface). Sleep state is one of reduced
power use. This state ends when the NetServer detects activity (mouse, keyboard, or
certain types of LAN activity) and returns to a fully operational state.
In this sleep state, the NetServer appears to be off, indicated by no display on the monitor
and no activity for the CD-ROM or internal hard drives. However, ACPI control provides
at least three power states and depending on the NOS and its ability to change the sleep
state program.
The first state is normal power On.
◊
To go to a fully powered-on state, press the front panel Power switch
for less than four seconds (default).
◊
To go to a sleep state, press the power switch for less than four
seconds.
The second state is a sleep or suspend state.
In this state there are no internal operations taking place, except for the
internal clock and the cooling fans. This includes no activity for the CPUs,
CD-ROM, or internal hard disk drives. The NetServer appears to be off
except for the sound of the fans and the active LCD display on the front
panel, which indicates
System is in ACPI sleep mode
and
the green power LED is flashing on and off.
◊
To enter a sleep state, press the Power switch for less than 4 seconds.
◊
To exit a sleep state, press the power switch for less than 4 seconds and
full operation is restored, including the LCD display and the power
LED.
The third state is the normal power shutdown.
All activity stops except the internal clock and the front panel LCD
display, which reads
System is powered off
, unless the power
cord is removed from the power source.