1.2.5 Local Disks

Each Sun Cluster server has one or more disks that are accessible only from that server. These are called local disks. They contain the Sun Cluster software environment and the Solaris operating environment.

Sun Cluster supports the capability to boot from a disk inside a multihost SPARCstorage^TM Array (SSA) and does not require a private boot disk. The Sun Cluster software supports SSAs that have both local (private) and shared disks.

Figure 1-7 shows a two-node configuration including the local disks.

Local disks can be mirrored, but mirroring is not required. Refer to Chapter 2, Planning the Configuration, for a detailed discussion about mirroring the local disks.