Application developers can then write to a virtualization layer.
应用程序开发者可以面向虚拟层来编程。
A virtual appliance is the software and hardware of a real computer appliance, but hosted inside a virtualization layer.
一个虚拟设备就是一个真实计算机设备的软件和硬件，但不同的是前者依托于一个虚拟化的层中。
This lets administrators deploy and move application servers at a virtualization layer level instead of at the physical machine level.
这使得管理员可以在虚拟层，而不用在机器物理层，部署和迁移应用服务器。
The virtualization layer standardizes the underlying hardware interfaces, so virtual machines can be moved seamlessly across different hardware platforms.
虚拟化层对基础的硬件接口进行规范化，所以虚拟机可以在不同的硬件平台之间无缝地移动。
While the PowerVM virtualization layer is highly robust, there are still times when planned downtimes are required, for example, to keep your environment in a current and supported state.
尽管PowerVM虚拟化层非常健壮，但是有时候仍然需要计划内停机，例如为了让环境处于最新的受支持的状态。
Business processes are encapsulated from a direct interaction with the application functions through this layer of service virtualization.
业务流程通过这个服务虚拟化层从与应用程序功能的直接交互封装。
A hypervisor is a software virtualization program that provides a layer of abstraction between operating systems and physical resources on a machine.
管理程序指的是一种软件虚拟化程序，它在操作系统和机器物理资源之间提供了一个抽象层。
This intermediary interprets requests from the virtual system to the host, thereby adding a layer of virtualization between the virtual system and the host.
这个虚拟中介截断了虚拟机系统发往主机的请求，也就是在虚拟机系统与主机之间添加了一个虚拟化层。
A mediation layer can be used in conjunction with a virtualization approach by integrating it with tenant specific service instances running in separate virtual image partitions.
中介层可以与虚拟化方法相结合，把它与在单独虚拟映像分区中运行的租户相关服务实例集成起来。
In addition, due to the fact that virtualization techniques are commonly employed in this layer, cost savings brought about by more efficient resource utilization can be realized.
此外，由于此层一般利用虚拟化技术，因此可以实现由更加高效的资源利用率带来的成本节约。
This machine may or may not support virtualization directly, which then requires support by the next layer, called the hypervisor.
这台机器可能直接支持虚拟化，也可能不会直接支持虚拟化；那么就需要系统管理程序层的支持。
With full virtualization, a layer exists between the virtualized operating systems and the hardware as a way to arbitrate access.
使用全虚拟化，在虚拟化的操作系统和硬件之间存在一个层，用于决定访问。
For the purposes of this article, we'll focus on server virtualization, where a hypervisor layer exists, supporting the execution of multiple virtual machines on one physical server.
对于本文，我们的重点是服务器虚拟化；在服务器虚拟化中存在一个管理程序层，用于支持在单个物理服务器上运行的多个虚拟机的执行。
AIX provides support for Virtualization through changes in the memory management layer (VMM).
通过内存管理层(VMM)中的更改，AIX提供了对虚拟化的支持。
As you see in Figure 1, the hypervisor is the layer of software that provides the virtualization of the underlying machine (in some cases, with processor support).
在图1中可以看到，hypervisor是提供底层机器虚拟化的软件层(在某些情况下需要处理器支持)。
The hypervisor is a thin layer of virtualization software that abstracts the operating system and applications from the server platform.
虚拟机管理程序(hypervisor)是一个较薄的虚拟化软件层，它抽象化来自服务器平台的操作系统和应用程序。
In a typical layered architecture, the layer that provides for the platform virtualization is called the hypervisor (sometimes called the virtual machine monitor, or VMM).
在典型的分层架构中，提供平台虚拟化的层称为hypervisor(有时称为虚拟机管理程序或VMM)。
Figure 1 shows that the virtualization component is provided by a layer of software called a hypervisor (sometimes called a virtual machine monitor [VMM]).
图1中所示的这个虚拟化组件是由一个名为hypervisor(有时也叫作虚拟机监视器[VMM])的软件层提供的。
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。
Currently the main storage system technology is SAN Virtualization and its implementation is in the file system layer.
SAN的虚拟化是存储系统的发展趋势，它在文件系统层实现。
Currently the main storage system technology is SAN Virtualization and its implementation is in the file system layer.
SAN的虚拟化是存储系统的发展趋势，它在文件系统层实现。
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