HP ProLiant SL2500 Scalable System - Manual (Page 48)

Power capping 48
Defining zones is an optional function, and is useful for applying power caps to some chassis while excluding
others or applying different power caps to different groups or single SL chassis.
Since HP APM zones are merely definitions of user defined HP APM group boundaries (and by extension any
chassis that are plugged into those ports), they ignore the actual physical presence of enclosures as they are
being defined in the HP APM CLI. Empty HP APM ports can be included in a zone. If an enclosure is plugged
into that port later, it automatically is part of that zone. A reminder message will be printed if a zone is
mapped to a HP APM port that currently has no SL enclosure plugged into it.
After zone mappings have been completed with the ADD ZONE and REMOVE ZONE commands, the SHOW
ZONES command can be used, for example:
> show zones
Zone RED:
Power Manager port 1:
Dist. Module port 1
Zone BLUE:
Power Manager port 1:
Dist. Module port 2
Dist. Module port 3
Zone GREEN:
Power Manager port 2:
all Dist. Module ports included
Zone YELLOW:
Power Manager port 3:
Dist. Module port 1
>
After a zone mapping has been completed, it can be saved to the HP APM onboard EEPROM with the SAVE
ZONES command. This action makes the zone definitions persistent across HP APM resets. It automatically
reloads on reboot. If SAVE ZONES is not used, the zone data is lost if the HP APM is reset.
If a zone needs to be deleted, the REMOVE ZONE <zone name> ALL command can be used. This causes
all ports to be removed from the zone definition, and the zone itself is deleted. As with all zone mapping
modifications, to make it persistent across HP APM resets, enter SAVE ZONES.
Power capping with zones
If zones are defined as described above (and assuming a power baseline has been established for the rack),
then the SET POWER CAP command can accept a zone name as a parameter after the wattage value (or
NONE if a power cap is being removed).
For example:
> show zones
Zone BLUE:
Power Manager port 1:
Dist. Module port 2
Dist. Module port 3
Zone GREEN:
Power Manager port 2:
all Dist. Module ports included
Zone YELLOW:
Power Manager port 3:
Dist. Module port 1
> show power baseline