很明显，有两个关键性组成部分提供应用程序虚拟化功能：随需应变路由器(on demand router)和动态集群。
Notably, there are two components critical to providing application virtualization capabilities: the on demand router and the dynamic cluster.
高度可用——通过Geronimo的动态分区特性，可以构建更大的集群，而集群更大，可用性的潜力就越大。
Highly available — Through the dynamic partitioning features of Geronimo, larger clusters can be built, and the larger the cluster, the higher the availability potential.
针对当前集群文件系统缺乏动态扩展性和高可用性的不足，提出了一种基于逻辑矢量环结构的集群文件系统HANDY。
Most of existing cluster file systems are shortage of dynamic scalability and high availability, so we provide a new cluster file system based on logical vector rings, named HANDY.
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