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ManualsBrandsVMware ManualsOtherVCENTER CONFIGURATION MANAGER 5.3
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Solution Architectural Overview
VMware Horizon View 5.3 and VMware vSphere for up to 2,000 Virtual
Desktops Enabled by Brocade Network Fabrics, EMC VNX, and EMC Next-
Generation Backup
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VMware vSphere has a number of advanced features that help to
maximize performance and overall use of resources. This section describes
some of the important features that help to manage memory and
considerations for using them in the environment.
In general, you can consider virtual machines on a single hypervisor
consuming memory as a pool of resources:
Figure 19. Hypervisor memory consumption
You should understand the technologies presented in this section.
Memory over-commitment
Memory over-commitment occurs when more memory is allocated to
virtual machines than is physically present in a VMware vSphere host. Using
sophisticated techniques, such as ballooning and transparent page
sharing, vSphere is able to handle memory over-commitment without any
performance degradation. However, if more memory than is present on