Which type of storage is the most cost-effective for retaining infrequently accessed data?

Archive storage is designed specifically for retaining infrequently accessed data, making it the most cost-effective option for this purpose. This type of storage is optimized for scenarios where data is not actively used but needs to be preserved over a long period for compliance, historical reference, or potential future retrieval.

Archive storage typically utilizes lower-cost hardware and has features tailored for durability and longevity rather than speed and accessibility. This can lead to significant savings when dealing with large volumes of data that do not require regular access.

In contrast, block storage is primarily used for high-performance applications where rapid access and low latency are essential, which does not align with the needs of infrequently accessed data. File storage provides a way to store and share files but often at a higher cost and may not be as optimized for long-term storage needs as archive solutions. Object storage, while versatile and suitable for a range of data types, can also be more expensive than archive storage for scenarios focused solely on low-access data needs.