What requirement must be met to configure vCenter Server High Availability across different data centers?

To configure vCenter Server High Availability (HA) across different data centers, it's essential that the network latency between the nodes is less than 10 milliseconds. This requirement ensures that communication between the active, passive, and witness nodes is reliable and fast enough for the systems to synchronize effectively. High availability solutions, especially in a distributed architecture like vCenter HA, require low latency to minimize the risk of loss of data consistency and to ensure a seamless failover experience.

When latency exceeds this threshold, issues such as delayed communication can occur, impacting the performance and effectiveness of the HA setup. Low network latency helps maintain the responsiveness of the services and keeps the state of the nodes in sync, which is crucial for continuous operation and quick recovery in case of node failure. The importance of this requirement emphasizes the need for a stable and prompt network connection to facilitate the high availability features of vCenter Server across different locations.