This information is directed primarily to hardware service providers. These concepts can help service providers understand the relationships between the hardware components before they install, configure, or service cluster hardware. Cluster system administrators might also find this information useful as background to installing, configuring, and administering cluster software.
A cluster is composed of several hardware components, including the following:
Cluster nodes with local disks (unshared)
Multihost storage (disks/LUNs are shared between cluster nodes)
Removable media (tapes and CD-ROMs)
Public network interfaces
Figure 2–1 illustrates how the hardware components work with each other.
Figure 2-1 Oracle Solaris Cluster Hardware Components
Administrative console and console access devices are used to reach the cluster nodes or the terminal concentrator as needed. The Oracle Solaris Cluster software enables you to combine the hardware components into a variety of configurations. The following sections describe these configurations.
For a list of supported hardware and software configurations, see Cluster Nodes