AWS RDS — Managed databáze

Relational Database Service. Multi-AZ, Read Replicas, Aurora, backup a performance tuning.

Podporované enginy

• Aurora — AWS-native, 5× výkon MySQL, až 15 read replik
• PostgreSQL / MySQL / MariaDB — open-source enginy
• Oracle / SQL Server — enterprise, BYOL nebo included licence

Multi-AZ a Read Replicas

aws rds create-db-instance \
  --db-instance-identifier mydb \
  --db-instance-class db.r6g.xlarge \
  --engine aurora-postgresql \
  --multi-az \
  --allocated-storage 100

Multi-AZ = synchronní replikace, automatický failover. Read Replicas = asynchronní, read-heavy workloady.

Backup

• Automatické snapshoty — retention 1–35 dní
• Point-in-Time Recovery — obnovení na libovolný okamžik
• Aurora Backtrack — „undo" bez restore

Shrnutí

RDS eliminuje DB ops overhead. Pro max výkon volte Aurora s Multi-AZ a Read Replikami.