https://docs.vmware.com/en/VMware-Cloud-Foundation/4.5/vcf-management-domain-design/GUID-11177D00-C8BE-4CEC-B997-659CC03B6D12.html
According to the VMware KB article Understand vMotion networking requirements (59232), a successful Long Distance vMotion requires a RTT (round-trip time) latency of 150 milliseconds or less, between hosts. This is the maximum accepted latency supported by vMotion across long distances1
An architect is decommissioning a host from a VI Workload Domain and wants to reuse it in a VMware Cloud Foundation environment.
Which statement accurately describes this process?
A. Use the decommission host workflow against a host with an unassigned state, and then run the commission host workflow.
B. Use the decommission host workflow against a host with an unassigned state, re-image the host, and then run the commission host workflow.
C. Use the decommission host workflow against a host with an assigned state, re-image the host, and then run the commission host workflow.
D. Use the decommission host workflow against a host with an assigned state, and then run the commission host workflow.
Answer: B
https://docs.vmware.com/en/VMware-Cloud-Foundation/5.0/vcf-admin/GUID-2C3E06BA-7B77-4F4B-958C-1BFCB3E9CBA7.html Removing hosts from the SDDC Manager inventory is called decommissioning. If you want to re-use a host in a different workload domain, you must decommission, re-image, and commission the host before adding it to the workload domain. The hosts that you want to decommission must not be assigned to a workload domain. If a host is assigned to a workload domain, you must remove it before you can decommission it. See Remove a Host from a vSphere Cluster in a Workload Domain.
Use the decommission host workflow against a host with an unassigned state, re-image the host, and then run the commission host workflow. According to the VMware Cloud Foundation documentation1, removing hosts from the SDDC Manager inventory is called decommissioning. If you want to re-use a host in a different workload domain, you must decommission, re-image, and commission the host before adding it to the workload domain. The hosts that you want to decommission must not be assigned to a workload domain. If a host is assigned to a workload domain, you must remove it before you can decommission it.
References: 1: Decommission Hosts - VMware Docs
