For computing to become a utility, which is the promise of the cloud, a data centre cannot be a hotch-potch of boxes cobbled together from different vendors, but must be tightly integrated.

• 由于云计算的出现，计算机开始向效用计算发展，一个数据中心必须是高度一体化的设备，而不能是由不同厂商提供的一堆大杂烩的堆砌。