HP Integrity rx8620 Server User Service Guide

The ACPI configuration settings for the supported operating systems are in the following
list.
— HP-UX ACPI Configuration: default On nPartition-capable HP Integrity servers, to boot
or install the HP-UX operating system an nPartition must have its ACPI configuration
value set to default.
For details see “ACPI Configuration for HP-UX Must Be “default”” (page 205).
— Windows ACPI Configuration: windows On nPartition-capable HP Integrity servers,
to boot or install the Windows operating system an nPartition must have its ACPI
configuration value set to windows.
For details see “ACPI Configuration for Windows Must Be “windows”” (page 209).
— Red Hat Linux 3 ACPI Configuration: single-pci-domain On nPartition-capable HP
Integrity servers, to boot or install the Red Hat Linux 3 operating system an nPartition
must have its ACPI configuration value set to single-pci-domain.
For details see “ACPI Configuration for Red Hat Linux 3 Must Be “single-pci-domain””
(page 210).
— SuSE Linux Enterprise Server ACPI Configuration: default On nPartition-capable HP
Integrity servers, to boot or install the SuSE Linux Enterprise Server operating system
an nPartition must have its ACPI configuration value set to default.
For details see “ACPI Configuration for SuSE Linux Enterprise Server Must Be “default””
(page 211).
• ACPI “Softpowerdown” Configuration OS Shutdown Behavior You can configure the
nPartition behavior when an OS is shutdown and halted. The two options are to have
hardware power off when the OS is halted, or to have the nPartition be made inactive (all
cells are in a boot-is-blocked state). The normal OS shutdown behavior depends on the ACPI
configuration for the nPartition.
You can run the acpiconfig command with no arguments to check the current ACPI
configuration setting; however, softpowerdown information is displayed only when different
from normal behavior.
To change the nPartition behavior when an OS is shutdown and halted use either the
acpiconfig enable softpowerdown EFI Shell command or the acpiconfig disable
softpowerdown command and then reset the nPartition to make the ACPI configuration
change take effect.
— acpiconfig enable softpowerdown When set, acpiconfig enable softpowerdown
causes nPartition hardware to be powered off when the operating system issues a
shutdown for reconfig command (for example, shutdown -h or shutdown /s).
This is the normal behavior on with a windows ACPI configuration setting.
When softpowerdown is enabled, if one nPartition is defined in the server then halting
the operating system powers off the server cabinet (including all cells and I/O chassis).
On a server with multiple nPartitions, halting the operating system from an nPartition
with softpowerdown enabled causes only the resources on the local nPartition to be
powered off.
To power on hardware that has been powered off, use the PE command at the MP
command menu.
— acpiconfig disable softpowerdown When set, acpiconfig disable
softpowerdown causes nPartition cells to remain at a boot-is-blocked state when the
operating system issues a shutdown for reconfig command (for example, shutdown
-h or shutdown /s). In this case an OS shutdown for reconfig makes the nPartition
inactive.
This is the normal behavior with an ACPI configuration setting of default or
single-pci-domain.
To make an inactive nPartition active, use the MP BO command to boot the nPartition
past the boot-is-blocked state.
204 Operating System Boot and Shutdown