Power Off; Sleep States (Acpi) - HP D7171A - NetServer - LPr Installation Manual

Chapter 2

Power Off

Follow this procedure when installing non-hot-swap and non-hot-plug
components, such as non-hot-plug PCI boards.
1. Log off all users and back-up files.
2. Follow instructions in your network operating system (NOS)
documentation to shut down all networking software and applications.
3. Press the Power switch to shut down the NetServer. See Figure 2-3.
Normally, this completes the procedure.

Sleep States (ACPI)

Sleep states are available if your NOS supports power management based on the
Advanced Configuration and Power Interface (ACPI) standard. The term "sleep"
state refers to a low latency (reduced power consumption) state, which can be
restarted (awakened) restoring full operation to the NetServer. 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, when the NetServer
detects activity (mouse, keyboard, or certain types of LAN activity), it returns to a
fully operational state.
ACPI control provides at least three power states and depending on the NOS used
and its ability to make changes to the sleep state program.
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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
after initially powering on the unit.
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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. The green power LED is flashing on and off.
To enter a sleep state, press the Power switch for less than four seconds
after powering on the unit.
To exit a sleep state, press the power switch for less than four seconds
(default) and full operation will be restored.
Controls, Indicators, and Ports
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