HP ProLiant SL2500 Scalable System - Manual (Page 47)

Power capping 47
3 (no Dist. Module present)
4 (no Dist. Module present)
5 (no Dist. Module present)
6 (no Dist. Module present)
7 (no Dist. Module present)
8 (no Dist. Module present)
Total servers = 10
Total chassis = 2
Total fan wattage = 35 (DC watts)
Total system wattage = 2265 (DC watts)
Total system wattage = 2425 (AC watts)
PDM Port Load
---- ---- ----
1 1 87 (AC watts)
1 2 150 (AC watts)
1 3 0 (AC watts)
1 4 464 (AC watts)
1 5 11 (AC watts)
2 (no PDM Extension present)
----
712
In the following example, the cap is set to 1500 AC watts. This information is saved as part of the baseline
data to the onboard HP APM EEPROM.
When multiple chassis are present and a valid rack level cap is given, HP APM:
1. Computes the total cap as a percentage against the sum of the eligible chassis’ max power values.
2. For each chassis, multiplies the percentage computed in step 1 against each chassis individual max
power value.
3. Programs the result into the chassis.
4. Repeats steps 2-3 for each eligible chassis.
To remove a power cap, use SET POWER CAP NONE. This action removes all power cap settings from all
the servers.
Creating HP APM power mappings
Zones are collections of HP APM enclosures that can be given unique names that can be referred to for power
capping purposes.
Zones provide the HP APM user with the capability of distinguishing groups of enclosures as targets for
power or management operations. When zones are defined, they are strictly a boundary definition that is
kept within the HP APM for its purposes. Zones can be added or removed with the ADD ZONE and REMOVE
ZONE commands.
When the first ADD references a zone name that does not exist, the zone is automatically created and the
indicated ports are populated into the newly created zone. Subsequent ADD ZONE commands that reference
the same zone name cause the specified ports to be added to the existing zone. No limit exists for the number
of ports other than the maximum HP APM supports in hardware that can be added to a zone. Multiple port
listings can be used with a single ADD ZONE command, or multiple ADD ZONE commands can be used with
each command adding new ports to the zone previously defined by the first ADD ZONE command.
To remove zone references to ports, use the REMOVE ZONE command. When the last port is removed from
a zone, the zone is automatically deleted. A zone cannot exist where no ports are assigned to it, and zone
port definitions cannot overlap (that is, the same SL chassis cannot exist in more than one zone).