Azure Reserved Instances
Azure Reserved Instances (RIs) are a pricing model offered by Microsoft Azure that allows users to pre-purchase virtual machine (VM) capacity for one or three years at a significant discount compared to pay-as-you-go rates. They provide cost savings and capacity reservation for predictable workloads, ensuring availability in specific Azure regions. This model is ideal for long-term, steady-state applications where resource usage is consistent.
Developers and organizations should use Azure Reserved Instances when running production workloads with predictable, sustained usage over extended periods, such as databases, web servers, or enterprise applications, to reduce cloud costs by up to 72% compared to on-demand pricing. It is particularly valuable for budgeting and financial planning in cloud environments, as it locks in lower rates and guarantees capacity, avoiding potential shortages in high-demand scenarios.