OpenStack: The 5-minute Overview
cloud computing technologists producing the ubiquitous open source cloud
data centers looking to deploy large-scale cloud
OpenStack: The Open Source Cloud Operating System
About OpenStack
OpenStack is a cloud operating system that controls large pools of compute, storage, and networking resources throughout a datacenter, all managed through a dashboard that gives administrators control while empowering their users to provision resources through a web interface.
Learn more about OpenStack's compute, storage, networking, take a tour of the dashboard, or dive in and learn how to get started with OpenStack today.
VMware提供OpenStack專案的外掛軟體，使得OpenStack的網路平台可認得VMware vSphere管理環境，以及Nicira的網路虛擬平台(Network Virtualization Platform)下執行的虛擬機器，並相容運作。
VMware在美國內外的目標卻是軟體市場兩個成長最快的領域：資料中心虛擬化及雲端運算。
VMware的混合雲將包含自己的基礎架構即服務，客戶未來可將私有雲移轉到大規模的公有雲
Enstratius的雲端管理平台可介接23個雲端基礎架構服務，包括Amazon Web Services、Microsoft Windows Azure、Rackspace、Eucalyptus、HP Cloud、AT&T Synaptic Cloud、IBM SmartCloud、VMware vCloud Suite及OpenStack，最近一個則是代管於澳洲資料中心的CloudCentral雲端平台。
而雲端產品其實也漸漸冒出其他選擇，其中有3個是開放原始碼軟體，分別為與亞馬遜相容的Eucalyptus Systems、Citrix釋出的CloudStack，以及支持者眾的OpenStack，功能面直接挑戰許多業者的統一平台。
軟體就是服務(Software as a Service, SaaS)的概念，
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