Three nodes cluster without quorum

Hello.
I am new here in this community.
I have a three nodes cluster but two nodes are on the same virt and one on another.
I need to set them like three masters and three data nodes. When I am updating the virt I need to shut down two of the cluster nodes and I lost quorum and elasticsearch stopped, how can I avoid that when discovery.zen.minimum_master_nodes is deprecated since 6 where I last worked.
thank you for help!

You must remove the master nodes following the process described in the manual:

Note that you effectively have a two-zone cluster which is not possible to make resilient to the loss of either "zone".

It didn't work in v6 either - it mostly looked like it did but doing this would occasionally result in data loss.

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