Composable data centers (DCs) have been proposed to enable greater efficiencies as the uptake of on-demand computing services grows. In this article we give an overview of composable DCs by discussing their enabling technologies, benefits, challenges, and research directions. We then describe a network for composable DCs that leverages optical communication technologies and components to implement a targeted design. Relative to the implementation of a generic design that requires a (high capacity) dedicated transceiver on each point-to-point link on a mesh optical fabric in a composable DC rack, the targeted design can significantly reduce capital expenditure (by up to 34 times) because fewer transceivers are used. This is achieved with little or no degradation of expected performance in composable DCs.
翻译:提议建立综合数据中心(DCs),以便随着按需计算服务的使用量增加而提高效率。在本篇文章中,我们通过讨论可按需计算服务的应用技术、效益、挑战和研究方向,对可按需计算的发展中国家进行概述。然后我们描述可按需计算的发展中国家网络,利用光学通信技术和部件来实施有针对性的设计。相对于实施通用设计,在可按需计算的DC机架内每个网状光学结构网点到点链接上需要一台(高容量)专用收发器,目标设计可以大大减少资本支出(最多减少34倍),因为使用的收发器较少。在可按需计算的发展中国家的预期性能很少或没有下降的情况下,实现这一点。