Sharing resources among a large pool of users assists in reducing infrastructure costs and peakload capacity.
通过大型的用户池共享资源来降低基础设施成本，提高峰值负荷能力。
2
During peakload times, more instances are added to the cluster and when the load comes down, the number of instances comes down.
在负载峰值期间，集群会增加更多的实例，而当负载下降时，实例的数量也会下降。
3
Shared resource services distribute services among a pool of users, and servers allow large companies to get peakload capacity at lower costs, reducing the need for larger internal data centers.