By virtue of command propagation, all nodes in a cluster have the same configurations. However, you may want some configurations to be available only on certain cluster nodes. While you cannot restrict the nodes on which the configurations are available, you can specify the nodes on which the configurations are active.
For example, you can define a SNIP address to be active on only one node, or define a SNIP address to be active on all nodes, or define a VIP address to be active on only one node, or define a VIP address to be active on all nodes, or define a VIP address to be active only on two nodes of a 3-node cluster.
Depending on the number of nodes the configurations are active on, cluster configurations are referred to as striped, partially striped, or spotted configurations.
|Configuration Type||Active on...||Applicable to...||Configurations...|
|Striped configuration||All the cluster nodes||All entities||No specific configuration required to make an entity striped. By default, all entities defined on a cluster IP address are striped on all the cluster nodes.|
|Partially striped configuration||A subset of cluster nodes||Refer "Node Groups"||Bind the entities that you want to be partially striped, to a node group. The configuration will be active only on the cluster nodes that belong to the node group.|
|Spotted configuration||Single cluster node||
||A spotted configuration can be defined using one of two approaches.