Based on kernel version 3.12. Page generated on 2013-11-13 21:58 EST.
1 Kernel driver ibmaem 2 ====================== 3 4 This driver talks to the IBM Systems Director Active Energy Manager, known 5 henceforth as AEM. 6 7 Supported systems: 8 * Any recent IBM System X server with AEM support. 9 This includes the x3350, x3550, x3650, x3655, x3755, x3850 M2, 10 x3950 M2, and certain HC10/HS2x/LS2x/QS2x blades. The IPMI host interface 11 driver ("ipmi-si") needs to be loaded for this driver to do anything. 12 Prefix: 'ibmaem' 13 Datasheet: Not available 14 15 Author: Darrick J. Wong 16 17 Description 18 ----------- 19 20 This driver implements sensor reading support for the energy and power meters 21 available on various IBM System X hardware through the BMC. All sensor banks 22 will be exported as platform devices; this driver can talk to both v1 and v2 23 interfaces. This driver is completely separate from the older ibmpex driver. 24 25 The v1 AEM interface has a simple set of features to monitor energy use. There 26 is a register that displays an estimate of raw energy consumption since the 27 last BMC reset, and a power sensor that returns average power use over a 28 configurable interval. 29 30 The v2 AEM interface is a bit more sophisticated, being able to present a wider 31 range of energy and power use registers, the power cap as set by the AEM 32 software, and temperature sensors. 33 34 Special Features 35 ---------------- 36 37 The "power_cap" value displays the current system power cap, as set by the AEM 38 software. Setting the power cap from the host is not currently supported.