Redundant hardware refers to additional components in a system that serve as backups in case the primary ones fail. This can include extra servers, power supplies, or network connections. The main goal of redundancy is to enhance reliability and ensure continuous operation, especially in critical environments like data centers. By having redundant hardware, organizations can minimize downtime and maintain service availability. For example, if one server goes offline, another can take over its tasks without interruption. This approach is essential for businesses that rely heavily on technology to operate smoothly and efficiently.