問題文
A facilities engineer receives a request to install accelerated servers whose combined draw would exceed what the existing racks were provisioned for. The engineer must explain the first thing that has to be checked, before cooling or floor space. Which item is it?
選択肢
- The number of free rack units, because density is what determines the draw and the units are the scarce resource.
- The weight of the fully populated servers, because a rack that exceeds the floor rating cannot be energized whatever the electrical feed provides.
- The network port count, because each server needs several high-speed ports and the leaf switches must be sized for them.
- The electrical capacity delivered to the rack, including the distribution units and the upstream feed.