Power Consumption Terminology and Properties
Table 5 Power Consumption Terminology
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Real-time power monitoring
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Oracle ILOM enables real-time power monitoring, within one second accuracy, by polling hardware interfaces (CMM, SP, power supply units (PSUs), and so forth) at any instance in time to present continuously updated power monitoring metrics in Oracle ILOM interfaces.
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Power Consumption
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Power consumption refers to either the input power consumed by the managed device or the output power provided by the PSUs.
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Input power is the power that is pulled into the chassis power supply units from an external power source.
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Output power is the amount of power provided from the power supply units to the chassis components.
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Power Consumption per managed device
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The power consumption metric, appearing in Oracle ILOM interfaces, depends on the following hardware configurations:
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Rackmount
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Blade server
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CMM
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Rackmount server power consumption is the sum of input power being consumed by the rackmount chassis power supplies.
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Blade server power consumption is the sum of power being consumed by its local components.
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CMM power consumption is the sum of input power being consumed by the blade chassis power supplies.
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Note -
CLI paths for Oracle's multi-domain SPARC systems are not included in the following table. To view power properties for a specific PDomain, append /Servers/PDomains/PDomain_n/ to the beginning of the CLI paths listed.
Table 6 Power Consumption Properties in Oracle ILOM Interfaces
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Actual Power
(/SP|CMM/powermgmt actual_power)
or
(/System/Power actual_power_consumption)
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x86 SP
SPARC SP
CMM
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The read-only Actual Power property value, shown in Oracle ILOM interfaces, indicates the consumed power wattage by the managed device (blade chassis, rackmount server, or blade server).
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Target Limit
(/SP/powermgmt/budget powerlimit)
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x86 SP
SPARC SP
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The read-only Target Limit property value, shown in Oracle ILOM interfaces, displays the current Target Limit value (wattage or percentage) set on the Oracle server.
Important power monitoring considerations:
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Oracle ILOM uses the set target limit value to determine the power budgeting parameters allowed for a server.
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Not all x86 servers will show a power management Target Limit property in the Oracle ILOM interfaces. When a Target Limit property is not supported by an x86 server, Oracle ILOM determines the power budgeting parameters for that server based on the power-consuming hardware components installed on the server.
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If the Target Limit property is supported (shown) in Oracle ILOM interfaces and a property value is not set, the property value Not Configured appears in the Oracle ILOM interfaces.
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Peak Permitted
(/SP|CMM/powermgmt permitted_power)
or
(/System/Power max_permitted_power)
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x86 SP
SPARC SP
CMM
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The read-only Peak Permitted property value, shown in Oracle ILOM interfaces, displays the maximum power wattage a managed device can consume:
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For an Oracle rackmounted or blade server, the peak permitted value represents the maximum input power that the server can consume.
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For a blade chassis, the peak permitted value represents the maximum power the blade chassis can consume.
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Event Notification Threshold
Default settings: disabled
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Threshold 1 = 0 watts
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Threshold 2 = 0 watts
(/SP|CMM/powermgmt threshold 1|2 = 0)
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x86 SP
SPARC SP
CMM
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The user-defined Notification Threshold properties, shown in Oracle ILOM interfaces, display the power wattage value set to trigger an alert notification. When enabled, an alert notification is triggered by Oracle ILOM when the power consumption wattage on a managed device exceeds the user-defined threshold value.
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