|ESM(4)||Device Drivers Manual (i386)||ESM(4)|
esm0 at mainbus?
esmdriver provides support for the monitoring of the environmental sensors present in a variety of Dell servers. The hardware monitoring is accessed via the hw.sensors sysctl(8) variable.
Devices compatible with the
esm driver can
provide an arbitrary set of sensors which may include the following
Sensor data is updated every 10 seconds.
The Embedded Server Management framework has been replaced in more recent Dell systems with the Intelligent Platform Management Interface. Servers using the Intelligent Platform Management Interface may be monitored by the ipmi(4) driver.
Example of enabling a watchdog:
# sysctl kern.watchdog.period=10
In this case if the watchdog is not reset, it'll reboot the server after roughly 10 seconds.
Example of disabling the watchdog:
# sysctl kern.watchdog.period=0
esmdriver first appeared in OpenBSD 3.9.
esmdriver was written by Jordan Hargrave <firstname.lastname@example.org> and
|July 16, 2013||OpenBSD-current|