HP Integrity rx8640, HP 9000 rp8440 Server User Service Guide

To change the nPartition behavior when an OS is shut down 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 on HP rx7620, rx7640, rx8620, and rx8640 servers, acpiconfig enable
softpowerdown causes nPartition hardware to be powered off when the OS issues a
shutdown for reconfiguration command (for example, shutdown -h or shutdown /s).
This is the normal behavior on HP rx7620, rx7640, rx8620, and rx8640 servers with a
windows ACPI configuration setting.
When softpowerdown is enabled on HP rx7620, rx7640, rx8620, and rx8640 servers,
if one nPartition is defined in the server, then halting the OS powers off the server cabinet,
including all cells and I/O chassis. On HP rx7620, rx7640, rx8620, and rx8640 servers
with multiple nPartitions, halting the OS 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 on HP rx7620, rx7640, rx8620, and rx8640 servers, acpiconfig disable
softpowerdown causes nPartition cells to remain at a boot-is-blocked state when the
OS issues a shutdown for reconfiguration command (for example, shutdown -h or
shutdown /s). In this case, an OS shutdown for reconfiguration makes the nPartition
inactive.
This is the normal behavior on HP rx7620, rx7640, rx8620, and rx8640 servers with
an ACPI configuration setting of default.
To make an inactive nPartition active, use the management processor BO command to
boot the nPartition past the boot-is-blocked state.
• Boot Modes on HP Integrity nPartitions: nPars and vPars Modes
On cell-based HP Integrity servers, each nPartition can be configured in either of two boot
modes:
◦ nPars Boot Mode
In nPars boot mode, an nPartition is configured to boot any single operating system in
the standard environment. When an nPartition is in nPars boot mode, it cannot boot the
vPars monitor and therefore does not support HP-UX virtual partitions.
◦ vPars Boot Mode
In vPars boot mode, an nPartition is configured to boot into the vPars environment.
When an nPartition is in vPars boot mode, it can only boot the vPars monitor and
therefore it only supports HP-UX virtual partitions and it does not support booting HP
OpenVMS I64, Microsoft Windows, or other operating systems. On an nPartition in
vPars boot mode, HP-UX can boot only within a virtual partition (from the vPars monitor)
and cannot boot as a standalone, single operating system in the nPartition.
CAUTION: An nPartition on an HP Integrity server cannot boot HP-UX virtual partitions when
in nPars boot mode. Likewise, an nPartition on an HP Integrity server cannot boot an operating
system outside of a virtual partition when in vPars boot mode.
System Boot Configuration Options 85