Considering the characteristics of deploying telecom operators's IT resources, this article suggestes that how to define the number of "cloud" which a telecom operator should plan and construct,proposes the methods of constructing a cloud resource pool,and mentiones the estimate ideas of whether existing business systems are suitable for migrating to the resource pool.%从电信运营商的IT资源部署特点出发,提出了运营商评估“云”的部署数量的参考,明确了云计算资源池的部署方式,并提出了评估现有业务系统是否适合迁移至资源池的思路和方法.
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