What is the difference between io1 and io2 volumes?

Question

Gowtham Hari Dhandapani · Accepted Answer

IO1 and IO2 volumes are both Amazon EBS Provisioned IOPS SSD volumes designed for high-performance, I/O-intensive workloads like databases, but IO2 offers significantly improved durability and a higher IOPS-to-storage ratio. IO2 volumes provide 99.999% durability, a 100x improvement over IO1's 99.8%. They also offer 500 IOPS per provisioned GB, compared to IO1's 50 IOPS per GB, allowing for smaller volume sizes with the same level of IOPS performance, potentially reducing costs.

What is the difference between io1 and io2 volumes?

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