Technical data

Figure 1–9 shows a two-member cluster configuration with three shared
SCSI buses. The clusterwide root (/), /usr, and /var file systems are
mirrored across the first two shared SCSI buses. The boot disk for member
system one is on the first shared SCSI bus. The boot disk for member system
two is on the second shared SCSI bus. The quorum disk is on the third
shared SCSI bus. You can lose one system, or any one shared SCSI bus,
and still maintain a cluster.
1–18 Introduction