Let's say you encounter a situation where you want to unregister a cluster from Prism Central.
Unregistering a cluster through the Prism GUI is no longer available. This option was removed to reduce the risk of accidentally unregistering a cluster.
There could be different scenarios in which a cluster needs to be unregistered from a Prism Central like
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Prism Central functionality is being evaluated but you do not plan to use the functionality.
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You manage your cluster or clusters using a different Prism Central instance.
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The Prism Central that your cluster was previously registered to has been destroyed or decommissioned.
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You might need to reconfigure the IP addresses of the Prism Central VMs in a PC cluster.
There could be multiple queries regarding cluster cleanup and unregistration workflow :
What happens if the unregistration workflow is not followed?
What happens if the workflow is executed partially?
What happens when you unregister and re-register without running the cleanup process?
What is the effect of PE unregistration on PSS configuration which has not yet been migrated to a PC?
The following knowledge base article provides the workflow and answers some basic queries regarding the procedure.