Users Guide

The non-clustered host can manage each cluster. The following figure illustrates this HIT Group configuration.
Figure 6. Two-Cluster HIT Group Managed from a Remote Host
In this figure, assume you use the Add Hosts option from the ASM/ME instance on the non-clustered host to add all six cluster
nodes from the two clusters.
ASM/ME automatically sets up the trust relationships, indicated by the different arrows.
On the non-clustered host, nodes 1, 2, 3, 4, 5, and 6 are added at the same time to the non-clustered host. The non-clustered
host can manage all nodes on each cluster.
On Cluster A, every node in Cluster A can manage all other nodes in the cluster. Cluster A’s nodes cannot access or manage
Cluster B’s nodes.
● Nodes 2 and 3 are added to the ASM/ME instance on Node 1.
● Nodes 1 and 3 are added to the ASM/ME instance on Node 2.
● Nodes 1 and 2 are added to the ASM/ME instance on Node 3.
On Cluster B, every node in Cluster B can manage all other nodes in the cluster. Cluster B’s nodes cannot access or manage
Cluster A’s nodes.
● Nodes 5 and 6 are added to the ASM/ME instance on Node 4.
● Nodes 4 and 6 are added to the ASM/ME instance on Node 5.
● Nodes 4 and 5 are added to the ASM/ME instance on Node 6.
Multiple Cluster Management — Two-Cluster Example
Non-clustered hosts are not required to manage multiple clusters; you can manage one cluster from another cluster. For
example, assume that you have two three-node clusters (Cluster A and Cluster B, in the following figure), and that you want to
manage Cluster B from Cluster A. You can run ASM/ME from any node on cluster A, add a node from Cluster B to it, and then
manage Cluster B from that node. The following figure illustrates this scenario.
HIT Groups
41