Greenplum并不提供Hadoop - as - a - Service，而是提供了一个超过10000虚拟节点和24 PB存储容量的平台，用于对Hadoop本身进行测试。
Greenplum is not offering Hadoop-as-a-service but rather providing a platform of over 10,000 virtual nodes and 24 PB of storage to test Hadoop itself.
此外，工作流使用SSH在主机平台上存储虚拟映像。
Additionally, the workflows use SSH on the host platform to store the virtual images.
亚马逊提供了世界最大的云服务平台，这些云服务供应商不仅提供基本的在线存储，也提供虚拟计算——用户可以按自己需要随意租赁“虚拟计算机”。
As well as basic online storage, firms such as Amazon, which provides the largest cloud service, also offer virtual computing. This allows people to rent as many "virtual computers" as they need.
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