Red Hat CLUSTER FOR ENTERPRISE LINUX 5.0, Configuration Manual

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5. Specify the Fence Daemon Properties parameters: Post-Join Delay and Post-Fail Delay.
a. The Post-Join Delay parameter is the number of seconds the fence daemon (
fenced
)
waits before fencing a node after the node joins the fence domain. The Post-Join Delay
default value is
3
. A typical setting for Post-Join Delay is between 20 and 30 seconds, but
can vary according to cluster and network performance.
b. The Post-Fail Delay parameter is the number of seconds the fence daemon (
fenced
)
waits before fencing a node (a member of the fence domain) after the node has failed.The
Post-Fail Delay default value is
0
. Its value may be varied to suit cluster and network
performance.
Note
For more information about Post-Join Delay and Post-Fail Delay, refer to the
fenced(8) man page.
6. Save cluster configuration changes by selecting File => Save.
4. 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 5.4, “Fence Device Configuration” ).
Chapter 5. Configuring Red Hat Cluster With
system-config-cluster
60