VCP5 – Upgrade from VMFS3 to VMFS5

Upgrading from VMFS3 to VMFS5 is seamless and can be performed online with active VMs. Note however, that there are drawbacks to upgrading to VMFS5:

  • Datastores are accessible to ESXi 5 hosts only
  • The upgrade process will not take advantage of some of the VMFS5 improvements (such as universal block size)
Upgrading to VMFS5
  1. In VSphere, browse to Datastores and Datastore Clusters
  2. Select the datastore and click the Configuration tab
  3. On the right, click Upgrade to VMFS-5
  4. Click OK to start the upgrade

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