Amazon Aurora DB clusters | AWS Course | Intellipaat

Aparna02018 Jan, 2023Education

Amazon Aurora DB clusters An Amazon Aurora DB cluster is made up of one or more database instances and a cluster volume that manages the data for those database instances. An Aurora cluster volume is a virtual database storage volume that spans multiple Availability Zones, with a copy of the DB cluster data in each Availability Zone. An Aurora DB cluster is made up of two types of DB instances: Primary DB instance - Supports read and write operations and handles all data changes to the cluster volume. There is only one primary DB instance in each Aurora DB cluster. Aurora Replica - This instance connects to the same storage volume as the primary DB instance and only supports read operations. In addition to the primary DB instance, each Aurora DB cluster can have up to 15 Aurora Replicas. Keep Aurora Replicas in separate Availability Zones to ensure high availability. If the primary DB instance becomes unavailable, Aurora switches to an Aurora Replica.