Technical White Paper

8 Power State Management
8.1 Description of Base Server versus Power State
Management Methods
The remote control of a server power state (On, Off) and methodology for cycling power is available
through data models specified in both the DMTF Base Server Profile and the DMTF Power State
Management Profile. The Base Server Profile offers the RequestStateChange() method on the
instance of the CIM_ComputerSystem class representing the server platform. The Power State
Management Profile offers the RequestPowerStateChange() method available on the instance of the
PowerStateManagmentService associated with the instance of CIM_ComputerSystem representing
the server platform.
Base Server Profile:
http://www.dmtf.org/sites/default/files/standards/documents/DSP1004_1.0.1.pdf
Power State Management Profile:
http://www.dmtf.org/sites/default/files/standards/documents/DSP1027_2.0.0.pdf
8.2 Get Power State
8.2.1 Base Server Method
The power state of the system is reported by the EnabledState property of the
DCIM_ComputerSystem class.
EXAMPLE:
wsman enumerate http://schemas.dmtf.org/wbem/wscim/1/cim-
schema/2/DCIM_ComputerSystem
-h $IPADDRESS -V -v -c dummy.cert -P 443
-u $USERNAME -p $PASSWORD
-j utf-8 -y basic
OUTPUT:
<n1:DCIM_ComputerSystem>
<n1:CreationClassName>DCIM_ComputerSystem
</n1:CreationClassName>
<n1:Dedicated>0</n1:Dedicated>
<n1:ElementName/>
<n1:EnabledState>2</n1:EnabledState>
<n1:HealthState>25</n1:HealthState>
<n1:IdentifyingDescriptions>CIM:GUID
</n1:IdentifyingDescriptions>
<n1:IdentifyingDescriptions>CIM:Tag
</n1:IdentifyingDescriptions>
<n1:IdentifyingDescriptions>DCIM:ServiceTag
</n1:IdentifyingDescriptions>
<n1:Name>srv:system</n1:Name>
<n1:OperationalStatus>6</n1:OperationalStatus>
<n1:OtherIdentifyingInfo>4c4c4544-0036-3510-8034-b7c04f333231
</n1:OtherIdentifyingInfo>