Installation guide

Fence Devices — Displays fence devices. Fence devices are represented as subordinate
elements under Fence Devices. Using configuration buttons at the bottom of the right frame
(below Properties), you can add fence devices, delete fence devices, and edit fence-device
properties. Fence devices must be defined before you can configure fencing (with the Manage
Fencing For This Node button) for each node.
Managed Resources — Displays failover domains, resources, and services.
Failover Domains — For configuring one or more subsets of cluster nodes used to run a
high-availability service in the event of a node failure. Failover domains are represented as
subordinate elements under Failover Domains. Using configuration buttons at the bottom
of the right frame (below Properties), you can create failover domains (when Failover
Domains is selected) or edit failover domain properties (when a failover domain is selected).
Resources — For configuring shared resources to be used by high-availability services.
Shared resources consist of file systems, IP addresses, NFS mounts and exports, and user-
created scripts that are available to any high-availability service in the cluster. Resources are
represented as subordinate elements under Resources. Using configuration buttons at the
bottom of the right frame (below Properties), you can create resources (when Resources is
selected) or edit resource properties (when a resource is selected).
Note
The Clu st er C o n fig urat io n T oo l provides the capability to configure private
resources, also. A private resource is a resource that is configured for use with only one
service. You can configure a private resource within a Service component in the GUI.
Services — For creating and configuring high-availability services. A service is configured
by assigning resources (shared or private), assigning a failover domain, and defining a
recovery policy for the service. Services are represented as subordinate elements under
Services. Using configuration buttons at the bottom of the right frame (below Properties),
you can create services (when Services is selected) or edit service properties (when a service
is selected).
1.9 .2 .2 . Clust er St at us T o o l
You can access the Clu st er St at u s T oo l (Figure 1.25, “ Cluster Status Tool” ) through the Clu st er
Man ag emen t tab in Cluster Administration GUI.
Red Hat Ent erprise Linux 5 Clust er Suit e Overview
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