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.. _usage:
OpenLMI Power Management usage
==============================
All example scripts are for ``lmishell``. See it's documentation_ on OpenLMI_
page.
.. _documentation: https://fedorahosted.org/openlmi/wiki/shell
.. _OpenLMI: https://fedorahosted.org/openlmi/
We also assume that ``lmishell`` is connected to the CIMOM and the
connection is stored in ``connection`` variable::
connection = connect("server", "username", "password")
ns = connection.root.cimv2
Enumeration of available power states
-------------------------------------
To see the available power states on given managed system, use following::
capabilities = ns.LMI_PowerManagementCapabilities.first_instance()
for state in capabilities.PowerStatesSupported:
print ns.LMI_PowerManagementCapabilities.PowerStatesSupportedValues.value_name(state)
Setting the power state
-----------------------
Let's say we want to power off the system gracefully::
# Check if the power state is available first
capabilities = ns.LMI_PowerManagementCapabilities.first_instance()
if not ns.LMI_PowerManagementCapabilities.PowerStatesSupportedValues.OffSoftGraceful in capabilities.PowerStatesSupported:
print "OffSoftGraceful state is not supported"
return
# Get the PowerManagement service
service = ns.LMI_PowerManagementService.first_instance()
# Invoke the state change
service.RequestPowerStateChange(PowerState=ns.LMI_PowerManagementCapabilities.PowerStatesSupportedValues.OffSoftGraceful)
Note that the job returned from this function is not much usable because
when system is shutting down, the CIMOM is terminated as well.
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