Explore real workflows that save companies time, eliminate old tools, and bring peace of mind.
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.
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 Key updates included replacing outdated Java and database interfaces with OpenJDK 8 and FreeTDS.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.
A large company with 430+ remote sites wanted to migrate their Oracle Rdb database to open source PostgreSQL. The application was to remain on an OpenVMS server; however the database was going to be located on a Linux server.
A large telecommunication provider wanted to replace their Alpha servers with Integrities. The core application running on OpenVMS comprised several million lines of complex code written in a variety of languages, including COBOL, Pascal, and C, and interacted with a Sybase database hosted on a UNIX platform, with communication between the OpenVMS-based application and the Sybase database being achieved via the Sybase Open Client API.
A government department needed to migrate their OpenVMS-based applications from Oracle RDB into Microsoft SQL server as part of a major initiative involving the implementation of several new Microsoft-based applications and use of open source libraries.
