Elastic Block Store (EBS) is a network-attached storage service that creates and manages persistent volumes.
- Volumes are persistent (removed and attached) and are replicated within a single AZ.
- You can change the EBS volume size and the storage type on the fly.
- EBS supports a maximum per-instance throughput of 1,750 MiB/s.
- EBS supports 80,000 IOPS per instance or 64,000 IOPS per volume.
- By default, EBS volumes are replicated within the AZ.