why vSAN keep doing "deploy OVF template" (and failed)?

[jerry5]

I am new to vSan concept and practice.

I got a question on vSan configuration:

• Here is what I do:
•          1.  I configured two hosts in cluster 
•          2. I activate vSAN in cluster
•          3. I finished with step-3 of Quick-start
• Then I saw in task-panel "Deploy OVF template", which always failed! (see screenshot)
• I did NOT ask vSAN to do anything yet:
•        Why it keep doing "deploy OVF template"?  which OVF template?
•        Why it failed all the time?  

Thanks!

(For reference, I attached two screenshots)   

[kastlr]

Hi,

vSAN 2 Node cluster would require a vSAN Witness, and that couldn't be installed on the vSAN cluster.

Check the following documentation.

vSAN 2-Node Cluster Guide

Hth,

Ralf

[jerry5]

Thanks Ralf:

* Do you mean that: three-node cluster would not require a witness?

* Can I just add a regular node to make it three-node?

(as I don't know how to setup the witness yet)

Thanks!

[kastlr]

Hi Jerry,

vSAN usually requires a minimum of 3 physical nodes, and all nodes must have at least one diskgroup.

A two node vSAN cluster is special, it would require only 2 physical nodes and one Witness (usually a nested ESXi).

The witness usually reside on a third site and is hosted by a regular ESXi Node (as with the .ova you will deploy a VM).