
PERFORMANCE STUDY /20
VMware vCloud Director 1.0 Performance and Best Practices
Deploy vApp
In vCloud Director 1.0, vApps can be deployed with fence mode or without fence mode.
When a vApp is deployed in fence mode, the connections between the vApp and the organization network
traverse a vShield™ Edge virtual appliance, which provides protection for the vApp network and also extends the
organization network so that identical virtual machines can be run in different vApps. By extending the
organization network in this way, it is possible to run multiple, identical vApps without conflict—the vShield Edge
appliance is deployed on a per-vApp network basis, isolating the overlapping Ethernet MAC and IP addresses.
Figure 16 illustrates the difference between a vApp that is deployed with and without fence mode.
Figure 16. vApps Deployed with and without Fence Mode
In this section, we compare the performance of deploying vApps with and without fence mode.
Deploy Single vApp with Varying Number of VMs
First, we compare the performance when a single vApp with a varying number of VMs is deployed and powered
on.
Figure 17. Deploy a Single vApp with and without Fence Mode
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Time in seconds
Number of VMs
deploy without fence
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