HP Integrity Superdome SX1000 User Manual page 186

Operating System Boot and Shutdown
System Boot Configuration Options
— 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"" on page 187.
— 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"" on page 189.
— 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"" on
page 191.
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ACPI "Softpowerdown" Configuration—rx7620 and rx8620 OS Shutdown Behavior
On HP rx7620 servers and rx8620 servers 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 on rx7620 servers and rx8620 servers 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 rx8620 and rx7620 servers with a windows ACPI configuration setting.
When softpowerdown is enabled on an rx7620 or rx8620 server, 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 an rx7620 or rx8620 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 management processor
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 on rx8620 and rx7620 servers with an ACPI configuration setting of
default or single-pci-domain.
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Appendix A