![]() ![]() Microsoft has invested over $15 billion building our global infrastructure and over $9 billion in research and development to increase efficiency and drive innovation. Microsoft invests significantly in the global operations, management, networks, and sustainability of facilities that deliver services 24x7x365. Microsoft datacenters are engineered to provide 99.999% availability to meet customer SLAs and service needs. Geographically distributed datacenters enable Microsoft to bring services closer to customers, reduce network latency, and allow for geo-redundant backup and failover. ![]() The following figure shows how the global infrastructure pairs region and availability zones within the same data residency boundary for high availability, disaster recovery, and backup. Availability zones allow for mission-critical applications to run with high availability and low-latency replication. Physically separate locations within a region are referred to as availability zones, each being made up of one or more datacenters equipped with independent power, cooling, and networking. Built-in fault tolerance allows geographies to withstand complete region failure through their connection to the dedicated, high-capacity networking infrastructure. Regions are organized into geographies, granting customers with specific data-residency and compliance needs the ability to keep their data and applications close. Regions are sets of datacenters that are interconnected via a massive and resilient network. This globally distributed infrastructure is designed to bring applications closer to users, preserve data residency, and offer comprehensive compliance and resiliency options for customers. Microsoft has highly secured datacenter facilities spread worldwide creating a distributed datacenter infrastructure, supporting thousands of online services. ![]() Redundancy is built into all systems at multiple levels to support datacenter availability. Microsoft datacenters are designed to implement a strategy of defense-in-depth, employing multiple layers of safeguards to reliably protect our cloud architecture, and supporting infrastructure. ![]()
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