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14.4. Power Management Elements

The power_management element provides users with the ability to set a power management configuration, which is required for host fencing. Certain sub-elements are required when configuring power_management.
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Table 14.2. Power management options
Element Type Description Properties
type= fencing device code A list of valid fencing device codes are available in the capabilities collection.
enabled Boolean: true or false Indicates whether power management configuration is enabled or disabled.
address string The host name or IP address of the host.
username string A valid user name for power management.  
password string A valid, robust password for power management.  
options complex Fencing options for the selected type= specified with the option name="" and value="" strings.  
agents complex Specifies fence agent options when multiple fences are used. Use the order sub-element to prioritize the fence agents. Agents are run sequentially according to their order until the fence action succeeds. When two or more fence agents have the same order, they are run concurrently. Other sub-elements include type, ip, user, password, and options.  
automatic_pm_enabled Boolean: true or false Toggles the automated power control of the host in order to save energy. When set to true, the host will be automatically powered down if the cluster's load is low, and powered on again when required. This is set to true when a host is created, unless disabled by the user.  
kdump_detection Boolean: true or false Toggles whether to determine if kdump is running on the host before it is shut down. When set to true, the host will not shut down during a kdump process. This is set to true when a host has power management enabled, unless disabled by the user.  
The options element requires a list of option sub-elements. Each option requires a name and type attributes. Certain options are only available for specific fencing types as defined in the capabilities collection.
A new host includes an optional power_management configuration when POSTing to the host resource. The power_management configuration is updatable using a PUT request.

Example 14.3. An XML representation of a host's power management configuration

<host id="2ab5e1da-b726-4274-bbf7-0a42b16a0fc3"
  href="/api/hosts/2ab5e1da-b726-4274-bbf7-0a42b16a0fc3">
    <name>host1</name>
    ...
    <power_management type="ilo">
        <enabled>true</enabled>
        <address>192.168.1.107</address>
        <username>admin</username>
        <password>p@55w0Rd!</password>
        <options>
            <option name="secure" value="true"/>
            <option name="port" value="54345"/>
            <option name="slot" value="3"/>
        </options>
        <agents>
            <agent id="07f0b9ce-923a-4a96-a532-3c898fa8b6da">
                <type>apc</type>
                <order>1</order>
                <ip>192.168.1.111</ip>
                <user>example</user>
                <password>p@55w0rd!</password>
                <port>9</port>
                <options>
                    <option name="power_wait" value="5"/> 
                    <option name="secure" value="false"/>
                </options>
            </agent>
            <agent id="50c71ba2-8495-11e0-b931-e20e458819ed">
                <type>rsa</type>
                <order>2</order>
                <ip>192.168.1.112</ip>
                <user>example</user>
                <password>p@55w0rd!</password>
                <port>9</port>
                <options>
                    <option name="power_wait" value="5"/> 
                    <option name="secure" value="false"/>
                </options>
            </agent>
        </agents>
        <automatic_pm_enabled>true</automatic_pm_enabled>
        <kdump_detection>true</kdump_detection>
    </power_management>
    ...
</host>
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