Tier IV refers to a classification system used primarily in data centers to indicate the level of reliability and redundancy in their infrastructure. A Tier IV data center is designed to provide the highest level of uptime, with multiple active power and cooling paths, ensuring that operations can continue even during maintenance or equipment failure. This tier is ideal for organizations that require maximum availability and cannot afford any downtime. In a Tier IV facility, all components are fully redundant, meaning there are backup systems in place for power, cooling, and network connectivity. This design allows for continuous operation, even in the event of a failure in one part of the system. Organizations that rely on cloud computing, financial services, or healthcare often seek Tier IV data centers to meet their stringent operational requirements.