Summary
In summary, system architecture is complex and requires us to really dig into business needs, how operations works, talk to key roles throughout the organization and elicit input, and take a broad view of technological building blocks to construct solutions that deliver the performance and reliability that our workloads need at the minimum cost.
We looked at fundamental components with virtual machines and containers and should now be able to defend our use of them and choose properly between them, as well as be able to use traditional containers without becoming confused with more recent application containers. And we learned about locality. You should be able to navigate the complicated linguistic minefield that is managers attempting to talk about the placement and ownership of server resources, analyze costs and risks and find the right option for your organization. Colocation, cloud, traditional virtualization, on premises are all options that you understand.
And...