io2 Block Express
Provisioned IOPS SSD (io2 Block Express
) volumes provide sub-millisecond latency and sustained high performance for sustained workloads. They're available under an opt-in preview and are only compatible with AWS Nitro System R5B instances. They're not designed for use as boot volumes and may worsen boot performance.
Limits
- 99.999% durability (0.001% annual failure rate)
- 4GiB-64TiB capacity per-volume
- 256,000 IOPS per-volume
- 4,000MiB/s throughput per-volume