Microsoft Storage Reserved Capacity Cool 1 PB GRS 3 Years

Control storage costs for data that must stay available without paying on-demand rates. Microsoft Storage Reserved Capacity for the cool access tier lets infrastructure teams commit to 1 PB in US West Central for 3 years, aligning spend with steady-state retention, backup, and compliance workloads. This reservation is designed for organizations that know their storage footprint and want more predictable budgeting over time. The cool tier fits infrequently accessed data that still needs durable protection, while GRS adds geo-redundant durability for stronger continuity planning. For procurement teams, the 3-year commitment can simplify forecasting and reduce exposure to fluctuating consumption costs. Use this reservation when your storage profile is stable, your retention window is long, and your architecture already depends on Azure Blob Storage economics. It is a practical fit for enterprise archives, backup repositories, and regulated data sets where cost control matters as much as availability. By reserving capacity instead of paying variable rates, you gain clearer financial planning for large-scale storage without changing the underlying Azure service model.