You have successfully sold and installed your customer’s System x solution. Sometimes, the overall succeed of a sale depends on how well you have trained your customer to support their new hardware. Please consider the following tools. Which one would be the best for protectively determining a server outage, and contacting the system administrator about the outage?()
A、CDAT
B、Configuration and Options Guide (COG)
C、Physical Alarm Sounding in Data Center
D、IBM Systems Director