Full redundancy mode

This power supply mode supports both grid redundancy or N+1 redundancy. 50% of the power supply output is allocated to the reserve pool and the other 50% of the power supply outputs are allocated to the available power pool. The reserved power may be used to backup either single power supply failures or a grid failure.

For example, a system with six 3000 watt (W) power supplies in grid redundancy mode has a total of 18000 W. 9000 W are allocated to the available power pool. 9000 W are allocated to the reserve pool. If half of the power supplies loose power, a grid failure occurs. If a grid failure occurs, the full reserve power pool is available to meet the 9000 W commitment. Otherwise, as a single power supply fails, power is allocated from the reserve to the available pool. Power continues to allocate to the available pool until the reserve power pool is exhausted.

Figure 1 shows how to connect power supplies in a SAN768C-6 for grid redundancy

Figure 2 shows how to connect power supplies in a SAN384C-6 for grid redundancy

Figure 3 shows how to connect power supplies in a SAN192C-6 for grid redundancy