Customers are more worried about a single point of failure (SPOF), because there is a system control unit
(SCU) in the proposed E870 solution.
Which of the following can effectively solve customers’ worry of single point of failure?

A.
redundant SAN fiber optic connector is used for connecting SCU to E870.

B.
both redundant system clock and the service processor are in the SCU.

C.
can add a redundant SCU in order.

D.
Adopting redundant Virtual IO Server can alleviate this fear