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Performance impact when using VMware snapshots

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Using vmware and snapshots? You probably know about vmware best practices about snapshots, which includes

  • The maximum supported amount of snapshots in a chain is 32. However, VMware recommends that you use only 2-3 snapshots in a chain.
  • Use no single snapshot for more than 24-72 hours. Snapshots should not be maintained over long periods of time for application or Virtual Machine version control purposes.
  • An excessive number of delta files in a chain (caused by an excessive number of snapshots) or large delta files may cause decreased virtual machine and host performance.
  • Be especially diligent with snapshot use on high-transaction virtual machines such as email and database servers

But what is real performance inpact of snapshot?

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