Question: Is it always harmelss to re-install a VM Server?

I'm thinking about disaster scenarios, and what I'm going to do about them. One scenario is that one server in a cluster dies, or even is just suspected of being corrupted in some way.
Question: What is the procedure for replacing a VM server?
Let's take the quick and dirty case: The server has died, and will never come back alive. What do I do?
<Thinking aloud> I have to get all the VMs off that server, manually or via the HA function. Then what? Maintenance mode? Or does the server have to be running to be put into maintenance mode? Or can I just delete the server? Will the several steps involved in deleting a server all run to completion if the server is dead already? Somehow, I remove it from VM Manager, right?
Then I can re-install the server. What do I have to be careful about? I need the same agent password, for sure. Should I go ahead and present the same LUNs to it that it had before? Or should I install, and discover it before doing that?
What am I missing?
Your comments are invited.

This can of course be done, but requires enough resources to do so. I have 6 VM servers in a clustered Pool where I do have enough resouces that actually I can actually loose one VM server an without being constrained by resoruces. So, if I set a VM to HA-mode, that is, check the HA option and start the VM or restart it, it will automatically be restarted if the VM server it runs on fails, crashes or otherwise goes down.
This I actually have experienced and it works flawlessly. Just make sure, that you do provide enough resources for the cluster.

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