You dont need a witness host/appliance with a 3 host vSAN setup
Yes I know but in this situation I will have just one witness per object, I need to have 2 witness node per object
1 person found this helpful
The witness (object) is used for a tie break situation. If you found yourself with an outage and 2 separate Witnesses then depending where the outtage occured the system might not be able to break the tie and you could end up with a split brain situation.
You only want 1
Its just not possible as the management cluster isnt part of the compute cluster so it would be a completely seperate vSAN datastore
Are you asking can you have 2 Witnesses in 1 vSAN cluster? (No)
Or are you asking can you run the Witness VM at one site and have it registered as a 'host' on another site?(Yes)
Please if you could clarify if by 'physical host' you mean the logical virtual-host the Witness node gets registered in inventory as or a physical server with a Witness iso installed.
Why would you need 2 witnesses? Do you want to increase availability? if so then you need to increase the number of hosts so you can do FTT=2!
Yes I want to just increase availability. Yes you are right Duncan, in this situation i can not have 2 witnesses without increasing number of hosts.