Description: Zone Availability is a crucial metric in the realm of cloud computing, especially on cloud platforms. It refers to the measure of uptime and reliability of resources in a specific availability zone, implying that services and applications hosted in that zone are operational and accessible to users. This metric is fundamental to ensure that critical applications maintain optimal performance and operational continuity, minimizing the risk of interruptions. Zone Availability is generally expressed as a percentage, where 99.9% availability indicates that the service may be down for a maximum of approximately 8.76 hours per year. Availability zones are physically separated within a region, meaning that a failure in one zone will not affect the others, thus providing greater resilience. This feature is especially relevant for businesses that rely on high availability of their services, as it allows them to design more robust and fault-tolerant architectures. In summary, Zone Availability is an essential component for planning and managing cloud services, ensuring that organizations can provide reliable service to their end users.
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