1.4.2 Symmetric and Asymmetric Configurations

Symmetric and asymmetric HA configuration, by definition, consists of exactly two nodes. Highly available data services run on one or both nodes. Figure 1-12 shows a two-node configuration. This example configuration consists of two active nodes (phys-hahost1 and phys-hahost2) that are referred to as siblings.

Both nodes are physically connected to a set of multihost disks.

Figure 1-12 Two-node Configuration