Wiley Virtualizing Microsoft Tier 1 Applications with VMware vSphere 4 978-0-470-56360-1 사용자 설명서

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978-0-470-56360-1
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Chapter  1
VMware vSphere 4 Overview
VMware vSphere 4 is the new major version of VMware’s flagship virtualization platform, VMware 
Infrastructure 3. A bare-metal hypervisor that enables full virtualization of industry-standard 
x86 hardware forms the foundation of this virtualization platform. In addition to this hypervisor, 
vSphere includes several advanced features that support innovative applications of virtualization 
technology. These features range from resource pooling, dynamic balancing of workloads, high 
availability, and disaster recovery. 
VMware classifies all these vSphere features into this set of services:
Infrastructure services
•u
Application services
•u
Management services 
•u
The infrastructure and application services are part of vSphere, and the management services 
are provided by VMware vCenter Server.
In this chapter, we will describe these services and provide details of their features. We will 
specifically call out features that are new in vSphere 4.
Infrastructure Services
vSphere infrastructure services are the core set of services that allows you to virtualize x86 serv-
ers (see Figure 1.1). First, these services abstract the physical x86 hardware resources, such as 
CPU, memory, storage, and network adapters, into virtual hardware to create virtual machines 
(VMs). Next, these services enable vSphere to transform resources from individual x86 servers 
into a shared computing platform with several operating systems and applications running 
simultaneously in different virtual machines. Finally, the infrastructure services provide several 
sophisticated features to optimize resources in such a shared environment. Figure 1.1 provides 
an overview of all the services in vSphere 4.
VMware vSphere provides the following types of infrastructure services:
VMware vCompute
•u
VMware vStorage
•u
VMware vNetwork
•u
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