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Author Archives: Xiaoyun Zhu

VMware vCenter Server Performance and Best Practices for vSphere 4.1

VMware recently released a white paper on
performance and best practices for vCenter Server in VMware vSphere 4.1. This
paper addresses four common areas of concerns regarding vCenter Server
performance:

  • Performance improvements in vSphere 4.1 compared to vSphere 4.0
  • vCenter Server sizing guidelines and software requirements
  • Best practices in performance monitoring, tuning and troubleshooting
  • Case studies demonstrating performance improvements in vSphere 4.1.

The vCenter Server in vSphere 4.1 supports a larger
inventory in a vSphere environment when compared with that supported in vSphere
4.0, both at the vCenter Server level and at the single cluster level. A table
is provided in the white paper to show the new supported limits. In addition,
in vSphere 4.1, vCenter Server can handle a larger number of concurrent tasks
at a time when compared with vSphere 4.0.

Significant performance improvements have been made in vSphere
4.1 compared to vSphere 4.0. The following list highlights some of the most
important performance improvements:

  • Improved performance at higher vCenter Server inventory limits – up to 7 times higher operational throughput and up to 75% reduced operational
    latency
  • Improved performance at higher cluster inventory limits – up to 3
    times higher operational throughput and up to 60% reduced operational latency
  • Faster vCenter Server startup – around 5 minutes for maximum
    vCenter Server inventory size
  • Better vSphere Client responsiveness, quicker user interaction,
    and faster user login
  • Faster host operations and VM operations on standalone hosts – up
    to 60% reduction in latency
  • Lower resource usage by vCenter agents by up to 40%
  • Reduced VM group power-on latency by up to 25%
  • Faster VM recovery with HA – up to 60% reduction in total
    recovery time for 1.6 times more VMs
  • Better load balancing with improved DRS/DPM algorithm
    effectiveness

For more information, please read the full paper: VMware vCenter
Server Performance and Best Practices for vSphere 4.1
.