题目内容
（请给出正确答案）
A.存储控制器只可运行在特定统一的服务器硬件上，不能混用。
B.软件定义存储的核心是存储虚拟化技术。软件定义的数据中心通过现有资源和应用程序对不断变化的业务需求提供支持，从而实现IT灵活性。
C.核心思想是将资源池化--处理器、网络、存储和可能的中间件--通过这样的方式，可以生成计算的原子单位，并根据业务流程需求很容易地分配或取消。
D.数据中心中的服务器、存储、网络以及安全等资源可以通过软件进行定义，并且能够自动分配这些资源。
答案
BCD
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