4 must-knows about powering and cooling your cloud


Test your knowledge of managing the cloud: 1


What happens to power usage effectiveness (PUE) after you virtualise?


a. It improves when power and cooling infrastructure is rightsized


b. It stays the same: both new and old servers consume the same energy


c. It gets worse because servers are consolidated d. None of the above


2 What’s the best way to manage dynamic loads?


a. Have a human track power and cooling capacities in each rack


b. Have a human track power and cooling capacities in each row


c. Install software that manages the server and storage VMs separately


d. Install software that integrates server, cooling, and power capacity data


4 3


What is a best practice for cooling hot spots caused by dynamic loads?


a. Spread the load among multiple racks b. Install bigger CRAC units c. Install a containment solution for dense racks d. Both a and c


Which is sound advice regarding redundancy in a cloud environment?


a. Architect more redundancy because clouds are less reliable


b. Architect less redundancy in the power and cooling infrastructure


c. Maintain traditional data centre redundancies d. Architect redundancy for test and development loads only


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