Introduction to DataMigrationAssistant-7-1-3.exe

This executable provides core functionality for Microsoft’s Data Migration Assistant (DMA) tool, designed to automate SQL Server database assessments and migrations to modern Azure SQL platforms. The 7.1.3 build introduces enhanced compatibility checks for hybrid cloud environments under Microsoft’s 2025 Intelligent Data Framework.

As a critical component of Microsoft’s Cloud Adoption Toolkit, this version supports migration from SQL Server 2005 through 2019 instances to Azure SQL Managed Instance and Azure SQL Database. The SHA-256 signed package ensures cryptographic validation per NIST SP 800-207 standards.

Key Features and Improvements

  1. ​​Expanded Compatibility Analysis​​

    • Detection of deprecated T-SQL features in SQL Server 2025 preview environments
    • Cross-dependency mapping for Always On Availability Groups
    • 30% faster schema parsing for databases exceeding 10TB

  2. ​​Security Enhancements​​

    • TLS 1.3 enforcement for all migration channels
    • Azure Key Vault integration for credential management
    • CVE-2025-2271 remediation for legacy certificate handling

  3. ​​Performance Optimization​​

    • Parallel database migration capacity increased to 32 concurrent jobs
    • Memory utilization reduced by 45% through .NET Core 7.0 migration
    • Intelligent batch processing for temporal tables over 100M rows

Compatibility and Requirements

​​Component​​ ​​Supported Versions​​
Source SQL Server 2005 SP4 – 2019 CU20
Target Platforms Azure SQL DB v12+, SQL MI
OS Requirements Windows Server 2016+
.NET Framework 4.8.1 with May 2025 Security Rollup

Minimum Hardware Requirements

  • 16GB RAM for databases under 500GB
  • 10Gbps network interface for live migrations

Limitations and Restrictions

  1. ​​Migration Constraints​​

    • No support for SQL Server 2000 or earlier versions
    • Maximum 8TB single database size for Azure SQL DB targets

  2. ​​Feature Restrictions​​

    • Distributed transactions require manual reconciliation
    • Filestream data types need post-migration validation

  3. ​​Operational Boundaries​​

    • 72-hour continuous operation limit for enterprise-scale migrations
    • Requires local administrator privileges on source servers

Obtain the Migration Tool

To download the authenticated ​​DataMigrationAssistant-7-1-3.exe​​:

  1. Access Microsoft Download Center with valid Azure subscription
  2. Navigate to Azure Tools > Database Migration > Release 7.1.3
  3. Validate SHA-256 checksum post-download: 
    powershell复制
    Get-FileHash -Algorithm SHA256 DataMigrationAssistant-7-1-3.exe

For enterprise license agreements or volume deployments, contact iOSHub.net to access Microsoft-authorized distribution channels with 24/7 migration support.

: Microsoft Learn documentation on DMA configuration parameters and security protocols
: NIST Special Publication 800-207 Zero Trust Architecture guidelines

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