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44 lines
1.4 KiB
44 lines
1.4 KiB
Kernel driver ibmaem |
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==================== |
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This driver talks to the IBM Systems Director Active Energy Manager, known |
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henceforth as AEM. |
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Supported systems: |
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* Any recent IBM System X server with AEM support. |
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This includes the x3350, x3550, x3650, x3655, x3755, x3850 M2, |
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x3950 M2, and certain HC10/HS2x/LS2x/QS2x blades. |
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The IPMI host interface |
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driver ("ipmi-si") needs to be loaded for this driver to do anything. |
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Prefix: 'ibmaem' |
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Datasheet: Not available |
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Author: Darrick J. Wong |
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Description |
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----------- |
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This driver implements sensor reading support for the energy and power meters |
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available on various IBM System X hardware through the BMC. All sensor banks |
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will be exported as platform devices; this driver can talk to both v1 and v2 |
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interfaces. This driver is completely separate from the older ibmpex driver. |
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The v1 AEM interface has a simple set of features to monitor energy use. There |
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is a register that displays an estimate of raw energy consumption since the |
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last BMC reset, and a power sensor that returns average power use over a |
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configurable interval. |
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The v2 AEM interface is a bit more sophisticated, being able to present a wider |
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range of energy and power use registers, the power cap as set by the AEM |
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software, and temperature sensors. |
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Special Features |
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---------------- |
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The "power_cap" value displays the current system power cap, as set by the AEM |
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software. Setting the power cap from the host is not currently supported.
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