1---2name: azure-database-migration-23description: Expert knowledge for Azure Database Migration service development including troubleshooting, decision making, limits & quotas, security, integrations & coding patterns, and deployment. Use when planning Azure DMS migrations for MySQL, PostgreSQL, SQL Server/SSIS, SQL MI, or MongoDB workloads, and other Azure Database Migration service related development tasks. Not for Azure Migrate (use azure-migrate), Azure SQL Database (use azure-sql-database), Azure SQL Managed Instance (use azure-sql-managed-instance), SQL Server on Azure Virtual Machines (use azure-sql-virtual-machines). Use when this capability is needed.4---5# Azure Database Migration Skill67This skill provides expert guidance for Azure Database Migration. Covers troubleshooting, decision making, limits & quotas, security, integrations & coding patterns, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.89## How to Use This Skill1011> **IMPORTANT for Agent**: This file may be large. Use the **Category Index** below to locate relevant sections, then use `read_file` with specific line ranges (e.g., `L136-L144`) to read the sections needed for the user's question12This skill requires **network access** to fetch documentation content.13Use `mcp_microsoftdocs:microsoft_docs_fetch` to retrieve full articles.14- **Fallback**: Use the built-in `WebFetch` tool if the Microsoft Learn MCP server is not available.1516## Category Index1718| Category | Lines | Description |19|----------|-------|-------------|20| Troubleshooting | L28-L32 | Diagnosing and resolving Azure DMS classic migration failures and source DB connectivity issues (network, auth, firewall, TLS) during database migrations. |21| Decision Making | L34-L39 | Choosing the right Azure DMS tool and scenario for your source/target databases, plus FAQs on supported migrations, limitations, and how to use Azure Database Migration Service. |22| Limits & Quotas | L41-L48 | Migration-specific limits, unsupported features, and constraints when using Azure DMS to move MySQL, PostgreSQL, SQL Managed Instance, MongoDB, and hybrid deployments. |23| Security | L50-L54 | Security guidance for Azure DMS migrations, including SQL best practices (network, auth, encryption) and configuring custom RBAC roles for MySQL migration scenarios. |24| Integrations & Coding Patterns | L56-L59 | Automating MySQL-to-Azure Database for MySQL migrations using Azure Database Migration Service with PowerShell scripts, parameters, and end-to-end workflow examples. |25| Deployment | L61-L65 | Using Azure DMS to redeploy or migrate SSIS packages to Azure SQL Database or SQL Managed Instance, including configuration steps and migration considerations. |2627### Troubleshooting28| Topic | URL |29|-------|-----|30| Troubleshoot common Azure DMS classic migration issues | https://learn.microsoft.com/en-us/azure/dms/known-issues-troubleshooting-dms |31| Fix Azure DMS source database connectivity problems | https://learn.microsoft.com/en-us/azure/dms/known-issues-troubleshooting-dms-source-connectivity |3233### Decision Making34| Topic | URL |35|-------|-----|36| Choose database migration tools with the Azure DMS matrix | https://learn.microsoft.com/en-us/azure/dms/dms-tools-matrix |37| Answer common Azure Database Migration Service usage questions | https://learn.microsoft.com/en-us/azure/dms/faq |38| Select supported Azure DMS migration scenarios | https://learn.microsoft.com/en-us/azure/dms/resource-scenario-status |3940### Limits & Quotas41| Topic | URL |42|-------|-----|43| Review migration limitations to Azure Database for MySQL | https://learn.microsoft.com/en-us/azure/dms/known-issues-azure-mysql-fs-online |44| Review online PostgreSQL to Azure Database for PostgreSQL migration limitations | https://learn.microsoft.com/en-us/azure/dms/known-issues-azure-postgresql-online |45| Review online migration limits to Azure SQL Managed Instance | https://learn.microsoft.com/en-us/azure/dms/known-issues-azure-sql-db-managed-instance-online |46| Understand Azure DMS hybrid mode limitations and issues | https://learn.microsoft.com/en-us/azure/dms/known-issues-dms-hybrid-mode |47| Review MongoDB to Azure Cosmos DB migration limitations with DMS | https://learn.microsoft.com/en-us/azure/dms/known-issues-mongo-cosmos-db |4849### Security50| Topic | URL |51|-------|-----|52| Apply security best practices for DMS SQL migrations | https://learn.microsoft.com/en-us/azure/dms/dms-security-best-practices |53| Configure custom RBAC roles for MySQL migrations in DMS | https://learn.microsoft.com/en-us/azure/dms/resource-custom-roles-mysql-database-migration-service |5455### Integrations & Coding Patterns56| Topic | URL |57|-------|-----|58| Automate MySQL to Azure MySQL migration with DMS PowerShell | https://learn.microsoft.com/en-us/azure/dms/migrate-mysql-to-azure-mysql-powershell |5960### Deployment61| Topic | URL |62|-------|-----|63| Redeploy SSIS packages to Azure SQL Database with DMS | https://learn.microsoft.com/en-us/azure/dms/how-to-migrate-ssis-packages |64| Migrate SSIS packages to Azure SQL Managed Instance with DMS | https://learn.microsoft.com/en-us/azure/dms/how-to-migrate-ssis-packages-managed-instance |6566---67> Source: [atc-net/atc-agentic-toolkit](https://github.com/atc-net/atc-agentic-toolkit) — distributed by [TomeVault](https://tomevault.io).68<!-- tomevault:4.0:skill_md:2026-05-22 -->
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