The first principle of a modularity framework is to attempt to try to focus on one logical piece of functionality at a time, also known as abstraction.
一个模块化框架的第一个基本原理是，努力尝试在一个时间关注于一个逻辑功能块，也称作为抽象。
2
Virtual abstraction is employed so that servers and storage can be managed as logical rather than individual physical entities.
虚拟抽象被运用到服务器和存储，这样可以进行逻辑管理，而不是一个个的物理实体。
3
At its simplest, it is an abstraction of the server's physical resources (CPU, memory, storage) from the logical resources presented to consumers.