Service manual

3-12 AlphaServer GS80/160/320 Service Manual
3.4.2 Controlling Power
The SCM commands, power on and power off behave differently
depending upon whether the system is partitioned or not.
Table 3– 5 Power On/Off
Command
Non Partitioned
System Partitioned System
Power on
Powers on the
entire system.
If QBB to I/O hose mapping already
exists as indicated by the show system
command, the partition owning the
particular PCI box from which the
command is issued will power-up. Other
partitions will not. If the system has
not already been mapped, the system
will not power-up.
Power off
Powers off the
entire system.
The partition owning the particular PCI
box from which the command is issued
will power down. No other partitions
will power down and all PCI boxes
remain powered on.
Power on –all
Powers on the
entire system.
Powers on the entire system starting
with partition 0 through partition n.
Power off –all
Powers off the
entire system.
Powers off the entire system starting
with partition 0 through partition n.
Power on –par n
Gives an error
message.
Powers on the QBBs and PCIs in the
partition specified by n, where n is the
partition number AND all other PCIs.
Power off –par n
Gives an error
message.
Powers off the QBBs in the partition
specified by n, where n is the partition
number. All PCIs remain powered.