rds_deployment.md

RDS Deployment Options

Three deployment options:

1. Read Replicas
2. Multi AZ
3. Multi Region

Read Replicas

• Scale the read workload of your DB
• Can create up to 15 Read Replicas
• Data is only written to the main DB

Multi AZ

• Failover in case of AZ outage (high availability)
• Data in only read/written to the main database
• Can have only one other AZ as failover

Multi Region (Read Replica)

• Disaster Recovery in case of region issue
• Local performance for global reads
• Replication costs