HP Insight Control Software for Linux - Manual (Page 14)

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Line Voltage : The line voltage of the data center that is delivered to the observed device. The Line
Voltage is shown in Volts and used to provide translations from Amps to Watts. If no line voltage is
available from the device, the value from the Power Management Options screen is used.
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Excess Capacity : The power capacity that cannot be used for the current configuration and is available
in excess to accommodate and deliver power to more systems. The Excess Capacity is shown in Amps
and Watts.
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Headroom Capacity : The spare cap capacity that is identified from the difference between the peak
power consumption and Power Cap. This helps to identify the power delivery devices with power caps
that can accommodate another system within the already set power cap. The Headroom Capacity is
shown in Amps and Watts.
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Peak Power Observed Time : The date/time at which the peak power consumption is observed.
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Operating Range (Horizontal Bar): The center bar shows the theoretical range of minimum and
maximum power consumption of the systems being summarized.
Power Status Alerts
The Power Status column provides a description of problems resulting from an analysis of the configuration
along with recommended actions to resolve the problem. The different categories of analysis are:
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Configuration Incomplete : Displayed when a power delivery device or system needs additional
manual configuration in order for power management to provide further analysis. Conditions which
can lead to this analysis message include:
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A power delivery device does not provide all the data displayed in the Power Summary meter.
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A system attached to a power delivery device has not yet been discovered by Systems Insight
Manager.
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A power delivery device has a peak power reading that is larger than the maximum possible
consumption of all the attached systems.
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A power delivery device does not provide a rated or derated capacity.
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Configuration Error : Displayed when attributes of a power delivery device or system are inconsistent
with one another and need manual attention to resolve the problem. Conditions which can lead to this
analysis message include:
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A power delivery device has a minimum possible consumption which is greater than its maximum
possible consumption.
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Potential Overload : Displayed when conditions on a power delivery device or system could lead to
a potential power or thermal overload. Conditions which can lead to this analysis message include:
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The maximum possible (or capped) consumption of a system exceed the capacity of its power
supplier.
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The aggregate maximum possible (or capped) consumption of a rack exceed its thermal limit.
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Redundancy Error : Displayed when a system that has been marked as requiring redundant power
(as specified in the 'System Properties') does not have redundant power feeds. There are two conditions
checked as part of redundancy analysis:
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A system must be connected to at least two power delivery devices, that is, one on side A and
another one on side B.
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The power delivery devices must not have a common parent anywhere in their power hierarchy.
For example, if a system is connected to two PDUs, those PDUs must not be connected to the same
PDR or branch circuit.
Data Center Power Control
HP Insight Control power management provides you the Data Center Power Control facility to control power
and cooling for the systems in the data centers. Usually, data centers have the required power and cooling
capacity for the supported systems they contain. When the power and cooling capacity is interrupted or
14 Key concepts