MPCDI
Enthusiast
Enthusiast

2 Node vSAN 7.0.2 with Witness - Policy for RAID1

I have a two node vSAN and have deployed a Small Witness in another cluster and have connected that Witness to the vSAN for the stretched cluster.

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When I attempt to configure the vSAN Default Policy it tells me that the vSAN isn't compatible because it lacks the Fault Domain.

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The disks of the Witness are part of the vSAN.

Disks.PNG

If I create a new policy or edit an existing the only time the vSAN appears to be compatible is with the following settings;

comp.PNG

I have looked over this doc https://core.vmware.com/resource/vsan-2-node-cluster-guide numerous times. What am I missing?

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paudieo
VMware Employee
VMware Employee

you have a network partition

The witness does not appear to be communicating with the master nodes

we see the witness in group 1 and the 2 data nodes are in group 2

this indicates a network partition

 

paudieo_0-1617866701812.png

make sure that routing is working between the vsan interfaces and vsan ports are allowed through any firewalls

start with the troubleshooting section on vSAN Network design guide 

https://docs.vmware.com/en/VMware-vSphere/7.0/vsan-network-design-guide/GUID-59ECCB82-F44C-45C8-8259...

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