Configuring Fence Devices

Red Hat Cluster Suite: Configuring and Managing a Cluster
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# 3.6. Configuring Fence Devices

Configuring fence devices for the cluster consists of selecting one or more fence devices and specifying fence-device-dependent parameters (for example, name, IP address, login, and password).

To configure fence devices, follow these steps:

1. Click Fence Devices. At the bottom of the right frame (labeled Properties), click the Add a Fence Device button. Clicking Add a Fence Device causes the Fence Device Configuration dialog box to be displayed (refer to Figure 3-6).

   Figure 3-6. Fence Device Configuration

2. At the Fence Device Configuration dialog box, click the drop-down box under Add a New Fence Device and select the type of fence device to configure.

3. Specify the information in the Fence Device Configuration dialog box according to the type of fence device. Refer to the following tables for more information.

   Field | Description
   --- | ---
   Name | A name for the APC device connected to the cluster.
   IP Address | The IP address assigned to the device.
   Login | The login name used to access the device.
   Password | The password used to authenticate the connection to the device.

   Table 3-1. Configuring an APC Fence Device

   Field | Description
   --- | ---
   Name | A name for the Brocade device connected to the cluster.
   IP Address | The IP address assigned to the device.
   Login | The login name used to access the device.
   Password | The password used to authenticate the connection to the device.

   Table 3-2. Configuring a Brocade Fibre Channel Switch

   Field | Description
   --- | ---
   IP Address | The IP address assigned to the PAP console.
   Login | The login name used to access the PAP console.
   Password | The password used to authenticate the connection to the PAP console.

   Table 3-3. Configuring a Bull Platform Administration Processor (PAP) Interface

   Field | Description
   --- | ---
   Name | The name assigned to the DRAC.
   IP Address | The IP address assigned to the DRAC.
   Login | The login name used to access the DRAC.
   Password | The password used to authenticate the connection to the DRAC.

   Table 3-4. Configuring a Dell Remote Access Controller/Modular Chassis (DRAC/MC) Interface

   Field | Description
   --- | ---
   Name | A name for the BladeFrame device connected to the cluster.
   CServer | The hostname (and optionally the username in the form of `username@hostname`) assigned to the device. Refer to the fence_egenera(8) man page.

   Table 3-5. Configuring an Egenera BladeFrame

   Field | Description
   --- | ---
   Name | A name for the GNBD device used to fence the cluster. Note that the GFS server must be accessed via GNBD for cluster node fencing support.
   Server | The hostname of each GNBD to disable. For multiple hostnames, separate each hostname with a space.

   Table 3-6. Configuring a Global Network Block Device (GNBD) fencing agent

   Field | Description
   --- | ---
   Name | A name for the server with HP iLO support.
   Login | The login name used to access the device.
   Password | The password used to authenticate the connection to the device.
   Hostname | The hostname assigned to the device.

   Table 3-7. Configuring an HP Integrated Lights Out (iLO) card

   Field | Description
   --- | ---
   Name | A name for the IBM Bladecenter device connected to the cluster.
   IP Address | The IP address assigned to the device.
   Login | The login name used to access the device.
   Password | The password used to authenticate the connection to the device.

   Table 3-8. Configuring an IBM Blade Center that Supports Telnet

   Field | Description
   --- | ---
   Name | A name for the RSA device connected to the cluster.
   IP Address | The IP address assigned to the device.
   Login | The login name used to access the device.
   Password | The password used to authenticate the connection to the device.

   Table 3-9. Configuring an IBM Remote Supervisor Adapter II (RSA II)

   Field | Description
   --- | ---
   IP Address | The IP address assigned to the IPMI port.
   Login | The login name of a user capable of issuing power on/off commands to the given IPMI port.
   Password | The password used to authenticate the connection to the IPMI port.

   Table 3-10. Configuring an Intelligent Platform Management Interface (IPMI)

   Field | Description
   --- | ---
   Name | A name to assign the Manual fencing agent. Refer to `fence_manual`(8) for more information.

   Table 3-11. Configuring Manual Fencing

   | Note
   | Manual fencing is not supported for production environments.

   Field | Description
   --- | ---
   Name | A name for the McData device connected to the cluster.
   IP Address | The IP address assigned to the device.
   Login | The login name used to access the device.
   Password | The password used to authenticate the connection to the device.

   Table 3-12. Configuring a McData Fibre Channel Switch

   Field | Description
   --- | ---
   Name | A name for the WTI RPS-10 power switch connected to the cluster.
   Device | The device the switch is connected to on the controlling host (for example, `/dev/ttys2`).
   Port | The switch outlet number.

   Table 3-13. Configuring an RPS-10 Power Switch (two-node clusters only)

   Field | Description
   --- | ---
   Name | A name for the SANBox2 device connected to the cluster.
   IP Address | The IP address assigned to the device.
   Login | The login name used to access the device.
   Password | The password used to authenticate the connection to the device.

   Table 3-14. Configuring a QLogic SANBox2 Switch

   Field | Description
   --- | ---
   Name | A name for the Vixel switch connected to the cluster.
   IP Address | The IP address assigned to the device.
   Password | The password used to authenticate the connection to the device.

   Table 3-15. Configuring a Vixel SAN Fibre Channel Switch

   Field | Description
   --- | ---
   Name | A name for the WTI power switch connected to the cluster.
   IP Address | The IP address assigned to the device.
   Password | The password used to authenticate the connection to the device.

   Table 3-16. Configuring a WTI Network Power Switch

4. Click OK.

5. Choose File => Save to save the changes to the cluster configuration.

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