Configuring A Heartbeat Clone Resource - Novell SUSE LINUX ENTERPRISE SERVER 10 SP2 HEARTBEAT Manual

4.10 Configuring a Heartbeat Clone
You may want certain resources to run simultaneously on multiple nodes in your cluster.
To do this you must configure a resource as a clone. Examples of resources that might
be configured as clones include STONITH and cluster file systems like OCFS2. You
can clone any resource provided it is supported by the resource's ResourceAgent. Clone
resources may even be configured differently depending on which nodes they are
hosted.
There are three types of resource clones:
• Anonymous Clones:
tically anywhere they are running.
• Globally Unique Clones:
the clone running on one node is not equivalent to another instance on another
node; nor would any two instances on the same node be equivalent.
• Stateful Clones:
active and passive. These are also sometimes referred to as primary and secondary,
or master and slave. Stateful clones can be either anonymous or globally unique.
1 To configure a resource as a clone, follow
2 Select the Clone check box. This will allow the resource to simultaneously run
3 In the clone_node_max field, enter the number of instances of the resource that
4 In the clone_max field, enter the number of nodes in the cluster that will run the
5 Click Add to add the clone resource to the cluster.
40 Heartbeat
Resource
Active instances of these resources are divided into two states,
(page 32) in Section 4.2, "Creating Cluster Resources"
on multiple cluster nodes.
will run on a given node.
resource.
These are the simplest type of clones. They behave iden-
These resources are distinct entities. An instance of
Step 1 (page 31) through Step 6
(page 31).