Required Main and Spare SSP Architecture

For automatic SSP and control board failover to function properly, you must set up your dual SSP configuration as illustrated in the following figure.

Figure 8-1 Dual SSP Configuration Required for Automatic Failover

Figure 8-1 shows the SSP, control board, and hub configuration required for dual SSP and control board failover (two SSPs, two hubs, and two control boards). Refer to the Sun Enterprise 10000 SSP 3.5 Installation Guide and Release Notes for details on the other configurations (for example, you can have a single SSP configuration with two control boards) supported by the failover feature and the prerequisites for implementing automatic failover.