Tuesday, September 20, 2011

Architectures Compared - ESX and ESXI

VMware ESX [~ 2 GB] VMware ESXi [< 150 MB]


  • VMware agents run in Console OS
  • Nearly all other management functionality provided by agents running in the Console OS
  • Users must log into Console OS in order to run commands for configuration and diagnostics
VMware ESXi [< 150 MB]



  • VMware agents ported to run directly on VMkernel
  • Authorized 3rd party modules can also run in Vmkernel. These provide specific functionality
    • Hardware monitoring
    • Hardware drivers
  • VMware components and third party components can be updated independently
  • The “dual-image” approach lets you revert to prior image if desired
  • Other capabilities necessary for integration into an enterprise datacenter are provided natively
  • No other arbitrary code is allowed on the system


source : http://www.vmware.com/products/vsphere/esxi-and-esx/compare.html#understand

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