Final answer:
The benefit of connecting each power supply in a blade server chassis to a separate UPS unit is increased redundancy, providing backup power in case one UPS fails.
Step-by-step explanation:
A blade server chassis with two power supplies connected to separate UPS units offers increased redundancy. This arrangement ensures that if one UPS fails or experiences an issue, the other UPS can continue to provide power, keeping the server operational. This is critical in environments where uptime is crucial, and it helps prevent downtime caused by power outages or failures.
Connecting the power supplies to separate UPS units does not reduce power consumption, simplify cabling, or improve network performance. These are not related to the power redundancy benefits provided by separate UPS connections.