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Figure 18 Read and write throughput with and without implementing VMware specific recommendations
3.5 Virtual infrastructure operations
In addition to regular application workloads running in the virtualized environment, there are also
maintenance and support operations like virtual machine cloning and storage vMotion involved in a
typical virtualized environment.
We recommend that these operations should be done with data stores mounted over multiple NAS
service virtual IP addresses. This will help to improve the network throughput performance and
duration of operations.
The following graph shows the time saved by doing these operations on NFS mounts over multiple
IPs. We had two datastores configured on a single ESXi host. We ran cloning tests with datastores
mounted over one, four, and eight NAS IP addresses. The number of NIC uplinks on the vSwitch was
set at four for all the tests. When a single virtual machine is cloned, it takes 60 minutes. Theoretically if
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recommendations implemented recommendations not implemented
Write throughput (MBps) for 16
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recommendations implemented recommendations not implemented
Read throughput (MBps) for 16
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