申論題

12. (5 points) Continuing from the last question, please answer which of the following statements is/are correct. Suppose that our server farm can dissipate a maximum of 300 W per square foot and a server rack requires 1I square feet (including front and back clearance).

(c) Suppose a cooling door for a rack costs $3500 and dissipates 28KW (into the room; additional cost is required to get it out of the room).The servers are all with a P2 processor, an M1 DRAM, and five D2 hard drives with RAID 6. In the farm, a single rack can host up to 30 servers.