9.5.2. Host Power Management Settings Explained

⁠9.5.2. Host Power Management Settings Explained

The Power Management settings table contains the information required on the Power Management tab of the New Host or Edit Host windows.

Table 9.2. Power Management Settings

Field Name	Description
Primary/ Secondary	Prior to Red Hat Enterprise Virtualization 3.2, a host with power management configured only recognized one fencing agent. Fencing agents configured on version 3.1 and earlier, and single agents, are treated as primary agents. The secondary option is valid when a second agent is defined.
Concurrent	Valid when there are two fencing agents, for example for dual power hosts in which each power switch has two agents connected to the same power switch. If this check box is selected, both fencing agents are used concurrently when a host is fenced. This means that both fencing agents have to respond to the Stop command for the host to be stopped; if one agent responds to the Start command, the host will go up. If this check box is not selected, the fencing agents are used sequentially. This means that to stop or start a host, the primary agent is used first, and if it fails, the secondary agent is used.
Address	The address to access your host's power management device. Either a resolvable hostname or an IP address.
User Name	User account to access the power management device with. You may have to set up a user on the device, or use the default user.
Password	Password for the user accessing the power management device.
Type	The type of power management device in your host. Choose one of the following: apc - APC MasterSwitch network power switch. Not for use with APC 5.x power switch devices. apc_snmp - Use with APC 5.x power switch devices. bladecenter - IBM Bladecentre Remote Supervisor Adapter cisco_ucs - Cisco Unified Computing System drac5 - Dell Remote Access Controller for Dell computers eps - ePowerSwitch 8M+ network power switch ilo, ilo2, ilo3, ilo4 - HP Integrated Lights-Out ipmilan - Intelligent Platform Management Interface and Sun Integrated Lights Out Management devices. rsa - IBM Remote Supervisor Adaptor rsb - Fujitsu-Siemens RSB management interface wti - WTI Network PowerSwitch
Port	The port number used by the power management device to communicate with the host.
Options	Power management device specific options. Give these as 'key=value' or 'key', refer to the documentation of your host's power management device for the options available.
Secure	Tick this check box to allow the power management device to connect securely to the host. This can be done via ssh, ssl, or other authentication protocols depending on and supported by the power management agent.
Source	Specifies whether the host will search within its cluster or data center for a fencing proxy. Use the Up and Down buttons to change the sequence in which the resources are used.