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- What: /sys/firmware/opal/sensor_groups
- Date: August 2017
- Contact: Linux for PowerPC mailing list <[email protected]>
- Description: Sensor groups directory for POWER9 powernv servers
- Each folder in this directory contains a sensor group
- which are classified based on type of the sensor
- like power, temperature, frequency, current, etc. They
- can also indicate the group of sensors belonging to
- different owners like CSM, Profiler, Job-Scheduler
- What: /sys/firmware/opal/sensor_groups/<sensor_group_name>/clear
- Date: August 2017
- Contact: Linux for PowerPC mailing list <[email protected]>
- Description: Sysfs file to clear the min-max of all the sensors
- belonging to the group.
- Writing 1 to this file will clear the minimum and
- maximum values of all the sensors in the group.
- In POWER9, the min-max of a sensor is the historical minimum
- and maximum value of the sensor cached by OCC.
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