on-demand computing

基本解釋

On-demand computing instances with several OS options can be ran in a very short time like 5 minutes.
按照計算實例需求通過幾個OS選項，便可以在很短的時間內(nèi)例如5分鐘就可以將應(yīng)用運(yùn)行起來。
Actually two new concepts are already beginning to be implemented: Grid computing and on-demand computing.
實際上，兩種新的概念已經(jīng)開始實現(xiàn)了：網(wǎng)格計算（Grid Computing）和按需計算（On-demand Computing）。
This, in turn, makes obvious the need for the concept of on-demand computing, which might be implemented on any configuration, from a simple cluster of servers to a network of 1024-node SP2s.
而這又明顯地需要按需計算的概念（on-demand computing），按需計算可能是在任何配置下實現(xiàn)的，從簡單的服務(wù)器集群到有1024個節(jié)點(diǎn)的 SP2 網(wǎng)絡(luò)。

As more enterprises shut down their in-house data centers and turn to on-demand storage and computing services delivered via the Internet, their storage needs become more variable and less predictable.
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Arguably more than any other government agencies, their missions require a fabric of utility computing that scales on demand and enables self discovery and self-service access to secure, timely and relevant information in support of mission: individual or shared.
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