A. Mikkelsen

VMware has released their hardening guide for vSphere 4.0.

There is more than 100 guidelines to choose from, divided between

• Introduction
• Virtual Machines
• Host (both ESXi and ESX)
• vNetwork
• vCenter
• Console OS (for ESX only)

http://blogs.vmware.com/security/2010/04/vsphere-40-hardening-guide-released.html

If you need a good guide to Interpreting the statistic from ESXTOP then take a look at this guide from VMware.

http://communities.vmware.com/docs/DOC-9279

I’m using it to troubleshoot performance issues (poor response times) from clients in different locations, when using the remote console.