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Amazon RDS
Seattle, Washington, United States
What it is
Amazon RDS is a managed relational database service that automates provisioning, patching, backups, and scaling. It supports Aurora PostgreSQL-Compatible, Aurora MySQL-Compatible, PostgreSQL, MySQL, MariaDB, SQL Server, Oracle, and Db2. Automated backups are enabled by default and permit point-in-time recovery within the configured retention period, which can extend up to 35 days. Multi-AZ deployments synchronously replicate data to standby instances and can fail over automatically; the availability SLA is up to 99.95% for RDS deployments. Read replicas provide asynchronous copies for read-heavy workloads and can be promoted to standalone database instances. Security options include VPC isolation, security groups, IAM permissions, SSL/TLS in transit, and AWS KMS encryption at rest using AES-256. RDS connects with CloudWatch, CloudWatch Logs, CloudTrail, Performance Insights, and Database Activity Streams. Users can manage it through the console, CLI, APIs, SDKs, or CloudFormation. All engines are HIPAA-eligible when used under an executed AWS Business Associate Agreement. A free plan and trial are listed; paid options include on-demand and reserved instances, with separate charges for other components.
For and against
For
- Automates provisioning, patching, backups, and scaling.
- Supports eight database engines.
- Point-in-time backup recovery can span up to 35 days.
- Multi-AZ deployments provide automatic failover.
- Offers VPC, IAM, and encryption controls.
Against
- Some Free Tier features and configurations are excluded.
- Storage, backup, and I/O may be billed separately.
- On-demand instances incur compute, storage, backup, and transfer charges.
The verdict
Amazon RDS combines managed database operations with engine choice, backup recovery, and high-availability options. The Free Tier has exclusions, and paid instance choices can involve separate charges for storage, backup, and other usage.
Who it suits
Amazon RDS suits teams that want a managed relational database with multiple engine choices. It also fits workloads that need read replicas, automated backups, or Multi-AZ failover.
Plans and prices
AWS Free Tier
Participating AWS Regions only · Additional $100 may be available for foundational services
Read 21 Oct 2026 · aws.amazon.com
AWS Free Tier for RDS
new sign-ups receive $100 credits plus up to $100 additional credits; legacy offer includes select Single-AZ instances, 20 GB storage, and 20 GB automated backup storage
Read 30 Sep 2026 · aws.amazon.com
On-demand
No minimum fees · No upfront commitment
Read 21 Oct 2026 · aws.amazon.com
Reserved Instance
Up to 69% savings versus on-demand for steady usage
Read 21 Oct 2026 · aws.amazon.com
On-Demand Instances
compute, storage, backup, and data-transfer charges apply separately
Read 30 Sep 2026 · aws.amazon.com
Reserved Instances
discount applies to hourly instance usage; storage, backup, and I/O are billed separately
Read 30 Sep 2026 · aws.amazon.com
On the record
- Automated administration
- RDS automates provisioning, configuration, backups, software patching, monitoring and failure recovery.aws.amazon.com · read 21 Oct 2026
- Automated backups
- Automated backups are enabled by default and support point-in-time recovery up to the configured retention period, which can be up to 35 days.aws.amazon.com · read 30 Sep 2026
- Company founded
- AWS states that it launched in spring 2006.aws.amazon.com · read 21 Oct 2026
- Company headquarters and size
- LinkedIn lists AWS headquarters in Seattle, Washington and company size of 10,001+ employees.linkedin.com · read 21 Oct 2026
- Company legal name
- AWS site terms identify the provider as Amazon Web Services, Inc.aws.amazon.com · read 21 Oct 2026
- Compliance
- AWS states that RDS participates in compliance programs including SOC, PCI, FedRAMP and HIPAA.docs.aws.amazon.com · read 21 Oct 2026
- Compute scale
- The feature page lists push-button scaling up to 128 vCPUs and as many as 15 read replicas for several engines.aws.amazon.com · read 21 Oct 2026
- Cross-region replication
- Cross-Region read replicas asynchronously replicate databases between AWS Regions for disaster recovery and performance.aws.amazon.com · read 21 Oct 2026
- Database engines
- Supported engines include Db2, MariaDB, Microsoft SQL Server, MySQL, Oracle Database, PostgreSQL and Amazon Aurora variants.aws.amazon.com · read 21 Oct 2026
- Documentation depth
- AWS provides a user guide, engine-specific guides, getting-started material, API reference and release-history documentation.docs.aws.amazon.com · read 21 Oct 2026
- Free Tier exclusions
- The RDS Free Tier excludes custom engine options, Reserved Instances, deployments other than Single-AZ, snapshot migration, Query Editor, and Aurora read replicas.docs.aws.amazon.com · read 30 Sep 2026
- Free-tier restrictions
- The free tier supports MariaDB, MySQL, PostgreSQL and SQL Server Express on micro instances and excludes Multi-AZ, reserved instances, custom engines and some Aurora actions.docs.aws.amazon.com · read 21 Oct 2026
- High availability
- Multi-AZ deployments synchronously replicate data and automatically fail over to a standby instance.aws.amazon.com · read 21 Oct 2026
- HIPAA eligibility
- AWS says all RDS database engines are HIPAA-eligible when used under an executed Business Associate Agreement.aws.amazon.com · read 21 Oct 2026
- Interfaces
- Administrators can use the AWS Management Console, AWS CLI and Amazon RDS APIs.docs.aws.amazon.com · read 21 Oct 2026
- Licence
- Amazon RDS is a proprietary hosted AWS service; the database engines it hosts may be open-source or commercial under their respective licences.aws.amazon.com · read 21 Oct 2026
- Limit: migration and lock-in
- Capterra reviewers describe migration away from AWS as difficult and note proprietary elements in the managed engine environment.capterra.com · read 21 Oct 2026
- Limit: pricing complexity
- Reviewers report that costs can rise quickly and become difficult to predict because of instance, storage, backup, monitoring, transfer and availability charges.gartner.com · read 21 Oct 2026
