You can install your storage array in several different configurations. Use the Sun StorEdge 6120 Array Installation Guide to evaluate your needs and determine which configuration is best for your situation.
The following figures illustrate example configurations.
Figure 1–1 shows two storage arrays, and two have controllers. The storage arrays connect to a 2-node cluster through two switches. Dual-controller configurations require software RAID-1 (host-based mirroring).
Figure 1–2 shows four storage arrays, and two have controllers. The first storage array without a controller connects to the second storage array, which has a controller. The third storage array without a controller connects to the fourth storage array, which has a controller. The two storage arrays with controllers connect to a 2-node cluster through two switches. Dual-controller configurations require software RAID-1 (host-based mirroring).
Figure 1–3 shows two storage arrays, and two have controllers. The two storage arrays are daisy-chained. The two storage arrays connect to a 2-node cluster through two switches.
Figure 1–4 shows four storage arrays, and two have controllers. All storage array are daisy-chained in the following order: alternate master, master, alternate master, and master. The two storage arrays with controllers connect to a 2-node cluster through two switches.