vCenter Server 为数据中心提供一个单一控制点。 它提供基本的数据中心服务， 如访问控制、性能监控和配置功能。 它将各台计算服务器中的资源统一在一起， 使这些资源在整个中心中的虚拟机之间共享。 其原理是：根据系统管理员设置 的策略，管理虚拟机到计算服务器的分配，以及资源到给定计算服务器内虚拟 机的分配。
VMware vCenter is an advanced server management software that provides a centralized platform for controlling vSphere environments for visibility across hybrid clouds.
What is vCenter ?
Gain centralized visibility, simplified and efficient management at scale, and extensibility across the hybrid cloud—all from a single console. VMware vCenter is advanced server management software that provides a centralized platform for controlling your VMware vSphere environments, allowing you to automate and deliver a virtual infrastructure across the hybrid cloud with confidence.
Simple Deployment
Quickly deploy vCenter as a pre-packaged, optimized, and easy-to-maintain virtual appliance. Integration of vSphere Update Manager into vCenter Server Appliance makes patching and upgrading fast and easy. RESTful APIs allow for the easily repeatable deployment of vCenter Server Appliance from a template, speeding up deployment times as well as reducing human error.
Extensibility and Scalability Across Hybrid Cloud
Seamlessly extend your on-premises environment to vSphere-based public clouds, such as VMware Cloud on AWS, no matter which version of vCenter you are running. Large-scale management is now improved: Manage up to 2,000 hosts and 35,000 virtual machines with a single vCenter instance.
Centralized Control and Visibility
Administer your entire vSphere infrastructure from a single location. The HTML 5-based vSphere Client lets you manage the essential functions of vSphere from any browser, offering more responsiveness and usability than ever before. Assign users to custom roles, search vCenter inventory, or provision new virtual machines with the click of a button.
Proactive Optimization
Allocate and optimize resources for maximum efficiency with our server management software. Manage up to 70,000 virtual machines and 5,000 hosts across 15 vCenter instances. Use vSphere HA and DRS clusters to support up to 64 hosts and 8,000 virtual machines. Replicate roles, permissions, and licenses across the infrastructure so you can simultaneously log in, view, and search the inventories of all vCenter Servers. Link multiple vCenter Server Appliances and increase visibility without using costly load balancers.
Improved Management
Use powerful tools to simplify management and extend your control. Use web services APIs to achieve cost-effective and flexible integration with existing systems management products. And use different VMware vCenter versions while allowing cross-vCenter, mixed-version provisioning operations, such as vMotion, Full Clone, and cold migrate.
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