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Dell VxRail Architecture Overview


Witness virtual appliance requirements

The VxRail 2-node cluster with VMware vSAN has witness virtual appliance requirements.

The following requirements apply:

  • VMware supports both physical VMware ESXi hosts and a virtual appliance as a VMware vSAN witness host.
  • The VMware vSphere license is included and hard coded in the witness virtual appliance.
  • The witness virtual appliance does not consume additional VMware vSphere licenses and does not require a dedicated physical host.
  • In VxRail 7.0.132 and later versions, the witness can be shared with up to 64 2-node VMware vSAN deployments.
  • The witness running on the VD-4000 sled card cannot be shared with other 2-node clusters.

For more information, see Understanding the VMware vSAN Witness Host.

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