S3 · Simple Storage Service
Amazon's object-storage service whose API has become the de facto standard for cloud object storage.
Current numbers
Iceberg: native in S3 Tables; opt-in for Athena CTAS (default HIVE)Open table format for AWS Athena/Glue/EMR + S3 Tables; Snowflake and Databricks interop
99.999999999%S3 Standard's published annual durability design target; separate from availability, retrieval time and an on-prem erasure-code design
~100%AWS S3 test: sequential tar shards kept the GPU near 100%; with few loader workers, random per-object reads starved it