HP Insight Cluster Management Utility - Manual (Page 145)

8.3 HP Insight CMU remote hardware control API
As of version 5.0, HP Insight CMU supports a remote hardware control API. This hardware API
makes it possible to integrate HP Insight CMU power and UID control with any computer that has
remote power control capability. The /opt/cmu/bin/cmu_power command interacts with this
API to provide remote power and UID control for HP Insight CMU.
The existing hardware APIs are:
ILO
The most common method of interacting with HP BL/DL/SL servers.
lo100i
The legacy method of interacting with low-end HP servers.
None
The fallback method of interacting with workstations and other servers that do not provide
remote power control.
IPMI
The industry standard method, useful with non-HP (or non-iLO HP) hardware.
ILOCM
The method for integration with HP Moonshot Chassis.
The HP Insight CMU hardware API consists of a collection of programs that reside in /opt/cmu/
hardware/
<HW_TYPE>/ where <HW_TYPE> refers to the name of the hardware API. For example
the iLO API programs reside in the /opt/cmu/hardware/ILO/ directory.
The name of the API programs in the hardware API directory must conform to the following format:
cmu_ <HW_TYPE>_power_<ACTION>
Where <ACTION> is one of:
off
Remove power from the server.
on
Apply power to the server.
osoff
Attempt a graceful shutdown of the OS before removing power.
uid_off
Turn off the UID light.
uid_on
Turn on the UID light.
These are the five basic actions required by HP Insight CMU.
NOTE: A boot command from HP Insight CMU is comprised of the osoff action followed by
the on action.
The following additional actions are supported by the /opt/cmu/bin/cmu_power command,
but are not required by HP Insight CMU:
status
Provide a power status for the given node, either on or off.
press
Simulate a "momentary press" of the power button.
To recap: the following programs are required when implementing a new FOO hardware API:
/opt/cmu/hardware/FOO/cmu_FOO_power_off
/opt/cmu/hardware/FOO/cmu_FOO_power_on
8.3 HP Insight CMU remote hardware control API 145