本文从网络系统的各个方面讨论了扩容改造的问题，指出了在实际工作中要综合考虑各种方法，通过扩容改造使系统以最少的投入，达到最好的性能。 This paper discusses the problem of capacity expansion and transformation from all aspects of the network system. It points out that various methods should be considered in practical work and the system should achieve the best performance through the expansion and reconstruction.