Aurora

MySQL compatible relational database engine that combines speed and availability of high-end commercial databases with the simplicity and cost-effectiveness of open source databases
Provides up to 5 times better performance than MySQL at a price point 1/10th of a commercial database while delivering similar performance and availability
Starts with 10GB, scales in 10GB increments up to 64TB (Storage Auto scaling)
Compute resources can scale up to 32 vCPUs and 244 GB of memory
Maintains 2 copies of your data contained in each availability zone, with minimum of 3 AZs. 6 copies of your data
Designed to transparently handle the loss of up to two copies of data without affecting the DB write availability and up to 3 copies without affecting read availability
Designed to handle loss of up to 2 copies without affecting DB write availability
Designed to handle loss of up to 3 copies without affecting DB read availability
Self healing storage, data blocks and disks are continuously scanned for errors and repaired automatically
2 Types of replicas available:
- Aurora Replicas – Separate aurora DB, can have up to 15 replicas
- MySQL read replicas, can have up to 5
If a failure occurs of the primary database, a fail-over will happen automatically to an aurora replica, but will NOT auto failover to a MySQL read replica.
Only available in certain regions, not all