The "Variant 1" calculation asks you to enter the number of servers you require in order to support your operating capacity (i.e. without any redundancy).

“变种1”计算要求您输入为了支持您的操作能力(也就是说没有任何冗余)需要的服务器数量。

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To get high availability, adopting redundancy components, system backup, detection and recovery method, is cluster operating system's necessary function.

采用冗余部件，通过系统备份、监测与恢复实现高可用性是机群必须具备的性能。

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All four of the new systems include full hardware redundancy, redundant storage and network connections and allow for live operating system upgrades, Sun said.

CNN: CeBIT: Sun puts new servers in spotlight