HP Rx2620-2 - Integrity - 0 MB RAM Manual page 29

Shuts down Windows and performs a shutdown for reconfig of the nPartition.
shutdown /s
The default behavior differs on HP Integrity Superdome servers and HP
Integrity mid-range servers.
On HP Integrity Superdome servers, shutdown /s causes all cells to be reset
and nPartition reconfiguration to occur as needed. All cells then remain at a
wait at BIB state, and the nPartition is inactive
On mid-range servers, the default behavior is for shutdown /s to cause
nPartition hardware to be powered off. You can use the EFI Shell command
acpiconfig disable softpowerdown instead to make all cells remain
at a wait at BIB state.
Performing nPartition management tasks 29