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The power supply is the component that transforms the AC Line into electric power needed by the computer. Therefore the power supply is a highly critical device of a computer that should never fail. For this reason, many vendors build servers with redundant power supplies. Monitoring power supplies allows the operators to be alerted when a power supply fails, or in some cases even when a power supply is overloaded.
Depending on the available information, the following parameters will be displayed for each power supply or power unit device:
| • | The Present parameter represents the availability of the power supply. An alert is triggered when the power supply is no longer discovered. |
| • | The Status parameter represents the current status of the power supply. An alert is triggered if an error occurs with the power supply. |
| • | The StatusInformation parameter gives additional information about the current status of the power supply. |
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