基础架构专家可以垂直扩展或收缩虚拟服务器或存储区域块。
The infrastructure specialist can scale up or down virtual servers or blocks of storage area.
简单地说，应用程序虚拟化是其底层应用程序基础架构资源(比如应用程序服务器和集群)的一个抽象。
At its simplest, application virtualization is the abstraction of the application from its underlying application infrastructure resources, such as application servers and clusters.
这个简化的服务器虚拟化架构如图4 所示。
The simplified architecture for server virtualization is shown in Figure 4.
新的类名为分布式虚拟交换机，它采用使底层服务器架构更透明的方法，支持跨服务器桥接。
The new class is called the distributed virtual switch, which enables cross-server bridging in a way that makes the underlying server architecture transparent.
应用程序虚拟化通过服务器虚拟化交付互补优势和增值效益到基础架构。
Application virtualization delivers complementary and value added benefits to infrastructures using server virtualization.
SaaS架构中的服务器虚拟化不局限于多租赁的数据和配置虚拟分区。
Virtualization of servers in SaaS architectures is more than virtually partitioning data and configuration in multi-tenancy.
全冗余的整体架构主机层：使用服务器虚拟化，数据库集群等保障业务的连续性。
The full redundancy of the overall architecture of the host layer: the use of server virtualization, database clusters and other services to ensure continuity.
全冗余的整体架构主机层：使用服务器虚拟化，数据库集群等保障业务的连续性。
The full redundancy of the overall architecture of the host layer: the use of server virtualization, database clusters and other services to ensure continuity.
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