Tag: x86 migration

x86 Migration

OpenVMS x86-64 Migration

An industrial company migrated its OpenVMS-based application to x86-64, replacing the unsupported Sybase OpenClient with FreeTDS. The migration required updating embedded SQL and porting 300,000+ lines of code in C, C++, and Fortran. VMware-based virtualization introduced networking challenges but was successfully implemented. Debugger issues slowed testing but were resolved with engineering support. VSI teams assisted with design, migration, and system tuning.

• x86 migration
• VMware-based environment
• FreeTDS integration
• Sybase database replacement
• System tuning and testing

x86 Migration & Modernization

Modernization Prior to x86-64 Migration

A telecom provider prepared for an x86-64 migration by first modernizing their OpenVMS Integrity environment. Key updates included replacing outdated Java and database interfaces with OpenJDK 8 and FreeTDS. The migration also involved updating COBOL-based applications and replacing legacy ACMS interfaces. These changes reduced risks and ensured a smoother transition to x86-64. The customer received ongoing support from VSI Application Services.

• x86 migration
• Application modernization
• COBOL migration
• FreeTDS integration
• Sybase database
• JNI updates