Azure Database for MySQL: Managed Database Service from Microsoft
Azure Database for MySQL is a fully managed relational database service built on the MySQL Community Edition engine, delivering enterprise-grade high availability, automatic backups, and intelligent performance tuning without the burden of database administration. Whether you are running a SaaS application, an e-commerce platform, or migrating legacy MySQL workloads to the cloud, Azure Database for MySQL provides the reliability and scalability that production environments demand. EPC Group has migrated hundreds of MySQL databases to Azure for clients across healthcare, finance, and retail.
Overview of Azure Database for MySQL
Azure Database for MySQL - Flexible Server is the current recommended deployment model, replacing the older Single Server option. Flexible Server delivers greater control over database configuration, same-zone and zone-redundant high availability options, and cost optimization through burstable compute tiers. The service supports MySQL versions 5.7 and 8.0, with automated patching and version upgrades.
Microsoft manages the underlying infrastructure, operating system, and MySQL engine, including patching, backups, and failover. This allows your development team to focus on application logic and query optimization rather than database administration tasks.
- Flexible Server: Zone-redundant HA, burstable compute, stop/start capability, and custom maintenance windows
- MySQL 5.7 and 8.0: Full compatibility with MySQL Community Edition including stored procedures, triggers, and views
- Built-in HA: Same-zone and zone-redundant high availability with automatic failover
- Automated backups: Point-in-time restore with up to 35 days of backup retention
- Read replicas: Up to 10 read replicas for read-heavy workloads, including cross-region replicas
Key Features
- Zone-redundant high availability: Automatic failover between availability zones with near-zero data loss
- Intelligent performance: Query performance insights, slow query log analysis, and performance recommendations
- Flexible scaling: Scale compute and storage independently with no downtime for storage scaling
- Stop/start capability: Stop the server when not in use (dev/test) and resume without losing data
- Custom maintenance windows: Schedule patching during business-appropriate windows
- Data encryption: Encryption at rest with service-managed or customer-managed keys (CMK)
- SSL/TLS enforcement: Encrypted connections with configurable minimum TLS version
- Private Link: Network isolation through Azure Private Endpoint
- Azure AD authentication: Use Azure AD identities for database access alongside MySQL native authentication
- Audit logging: Full audit log support for compliance requirements
- Data-in transit encryption: Required SSL/TLS connections for all client communications
Pricing Tiers
Azure Database for MySQL Flexible Server offers three compute tiers designed for different workload profiles. Storage is billed separately and can be scaled independently.
Burstable Tier
- B-series VMs: 1–20 vCores
- Starting at approximately $12/month for B1s (1 vCore, 1 GB RAM)
- Burstable CPU performance for intermittent workloads
- Ideal for development, testing, and low-traffic applications
- Stop/start feature for cost savings during off-hours
General Purpose Tier
- D-series VMs: 2–96 vCores
- Starting at approximately $100/month for D2ds_v4 (2 vCores, 8 GB RAM)
- Balanced compute and memory for most production workloads
- Same-zone and zone-redundant HA available
- Best for web applications, SaaS platforms, and medium-scale databases
Business Critical Tier (Recommended for Enterprise)
- E-series VMs: 2–96 vCores with high memory-to-vCore ratio
- Starting at approximately $170/month for E2ds_v4 (2 vCores, 16 GB RAM)
- Highest performance with local SSD storage for ultra-low latency
- Zone-redundant HA with synchronous replication
- Required for mission-critical workloads with strict performance SLAs
Storage costs range from approximately $0.115 per GB/month for general-purpose storage to $0.23 per GB/month for premium SSD. Backup storage is free up to 100% of provisioned server storage; additional backup storage is billed per GB.
Enterprise Use Cases
- SaaS applications: Multi-tenant databases with read replicas for scaling and zone-redundant HA for reliability
- E-commerce platforms: High-availability product catalogs and order management systems
- Content management: WordPress, Drupal, and custom CMS deployments with managed MySQL backends
- Healthcare applications: HIPAA-compliant patient data management with encryption and audit logging
- Legacy application modernization: Migrate on-premises MySQL databases to Azure without application code changes
- Geographically distributed reads: Cross-region read replicas for global applications requiring low-latency reads
Integration with Other Azure Services
- Azure App Service: Native connectivity for web applications with virtual network integration
- Azure Kubernetes Service: Connect containerized applications to MySQL with private endpoints
- Azure Data Factory: ETL and data movement pipelines to and from MySQL databases
- Azure Database Migration Service: Zero-downtime online migration from on-premises MySQL to Azure
- Power BI: Direct Query and Import connections for real-time business intelligence dashboards
- Azure Monitor: Database metrics, alerts, and diagnostic logging for operational visibility
- Microsoft Defender for Cloud: Advanced threat protection detecting anomalous database activities
Best Practices for Enterprise Deployments
- Enable zone-redundant HA: For production workloads, always configure zone-redundant high availability
- Use private endpoints: Never expose your database to the public internet; use Private Link for all connections
- Configure read replicas: Offload reporting and analytics queries to read replicas to reduce primary server load
- Enable audit logging: Required for HIPAA, SOC 2, and other compliance frameworks
- Use connection pooling: Implement connection pooling (ProxySQL or application-level) to avoid connection exhaustion
- Monitor slow queries: Enable slow query logging and review Query Performance Insight regularly
- Plan backup retention: Set retention to 35 days for production; configure geo-redundant backup storage for DR
- Use Azure AD authentication: Centralize identity management and eliminate shared passwords
- Right-size compute tier: Start with General Purpose and move to Business Critical only when latency requirements demand it
Why Choose EPC Group for Azure Database for MySQL
With 28+ years of enterprise database consulting, EPC Group has migrated and managed MySQL databases for organizations of every size. Our database architects specialize in performance optimization, high availability design, and compliance-ready configurations for healthcare, financial services, and government clients.
We handle the complete database lifecycle: migration assessment, schema optimization, performance tuning, HA configuration, backup strategy, and ongoing monitoring. Our team ensures your MySQL databases on Azure deliver the reliability, performance, and security that enterprise applications require.
Ready to Migrate MySQL to Azure?
Contact our database migration specialists for a free assessment of your MySQL environment. We will evaluate your databases, recommend the optimal Flexible Server configuration, and deliver a zero-downtime migration plan.
Frequently Asked Questions
Which MySQL versions does Azure Database for MySQL support?
Azure Database for MySQL Flexible Server supports MySQL 5.7 and 8.0 Community Edition. Microsoft applies minor version patches automatically during your configured maintenance window. Major version upgrades (e.g., 5.7 to 8.0) can be performed in-place through the Azure portal or CLI.
Can I migrate from Amazon RDS for MySQL to Azure?
Yes. Azure Database Migration Service supports online migration from Amazon RDS for MySQL to Azure Database for MySQL with minimal downtime. The process involves setting up continuous replication from RDS to Azure, letting it catch up, and then performing a quick cutover. EPC Group has performed dozens of cross-cloud MySQL migrations.
Is Azure Database for MySQL HIPAA compliant?
Yes. Azure Database for MySQL is covered under Microsoft's HIPAA Business Associate Agreement. When configured with encryption at rest (enabled by default), SSL/TLS enforcement, private endpoints, audit logging, and Azure AD authentication, it meets HIPAA technical safeguard requirements for protected health information.
What is the maximum database size supported?
Azure Database for MySQL Flexible Server supports up to 16 TB of storage. Storage can be scaled up without downtime (scale-down is not supported). For databases larger than 16 TB, consider sharding strategies or Azure Database for MySQL with InnoDB cluster configurations. Our architects can design the optimal storage architecture for your workload.
How does zone-redundant HA work?
Zone-redundant HA deploys a standby replica in a different availability zone within the same region. Data is synchronously replicated to the standby. If the primary fails, automatic failover promotes the standby within 60–120 seconds. The failover is transparent to applications that implement connection retry logic. This provides protection against both server failures and entire availability zone outages.