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VX/RTR - OpenVMS RTR V2 to Async RTR V3

Seamless Migration: VMS/OpenVMS RTRV2 to Linux RTRV3 with VX/RTR

Sector7's VX/RTR solution facilitates the smooth transition of legacy VMS / OpenVMS Reliable Transaction Router (RTR) Version 2 (RTRV2) applications to modern Linux environments utilizing RTR Version 3 (RTRV3). This migration is critically enabled by the powerful VX/RT Asynchronous Backplane, which forms the foundation for this advanced compatibility.

A key challenge in such migrations is the handling of VMS Asynchronous System Traps (ASTs). VX/RTR, in conjunction with Sector7's proprietary AST implementation (S7 ASTs), ensures that the asynchronous event handling crucial to RTRV2 applications is faithfully replicated on Linux. The VX/RT Asynchronous Backplane provides the necessary infrastructure for this, allowing RTRV2 Application Programming Interface (API) calls from the original VMS / OpenVMS applications to be seamlessly mapped onto their corresponding RTRV3 calls on the Linux platform. This comprehensive approach ensures that the intricate dependencies on system-level services, often managed through SYS$ routines, are correctly addressed.

The result is a transparent compatibility layer provided by VX/RTR, ensuring that your existing OpenVMS applications reliant on RTRV2 can operate on modern Linux systems with RTRV3, preserving their original functionality and behavior without requiring extensive code rewrites or manual intervention. This significantly reduces project risk, timelines, and costs associated with modernizing mission-critical transaction processing systems, leveraging the full capabilities of the VX/RT APIs for a robust and future-proof solution.

Frequently Asked Questions

Curious about how Sector7 can facilitate your application migration? Explore our FAQs for expert insights.

What is VX/RTR and how does it work?

VX/RTR enables seamless migration of OpenVMS RTRV2 applications to Linux RTRV3 by utilizing the VX/RT Asynchronous Backplane. It provides a transparent compatibility layer that ensures existing applications can run on modern Linux environments without code rewrites.

For a real-world example of successful RTR migration, see our Ford migration case study.

How does VX/RTR handle RTRV2 to RTRV3 migration?
VX/RTR fully maps RTRV2 API calls onto RTRV3, implementing VMS AST (Asynchronous System Trap) handling within Linux to ensure smooth transition without requiring code modifications.
What are the key features of VX/RTR?
Key features of VX/RTR include:
  • Full mapping of RTRV2 API calls to RTRV3
  • VMS AST handling implementation on Linux
  • Transparent compatibility layer for existing applications
  • Integration with VX/RT Asynchronous Backplane
How does VX/RTR integrate with other Sector7 tools?

VX/RTR integrates seamlessly with VX/RT APIs and the broader VX/RT ecosystem to provide comprehensive OpenVMS compatibility on Linux platforms.

What types of OpenVMS applications can benefit from VX/RTR?
VX/RTR is ideal for OpenVMS applications that use RTRV2 for reliable transaction processing, particularly in financial services, telecommunications, and mission-critical enterprise environments.
How does VX/RTR ensure application compatibility?
VX/RTR ensures compatibility by providing a transparent layer that maintains all original RTRV2 behaviors and API responses, allowing applications to function identically on Linux as they did on OpenVMS.
What migration benefits does VX/RTR provide?
VX/RTR enables organizations to modernize their reliable transaction processing infrastructure while preserving existing application logic and reducing migration risk. This approach minimizes development costs and accelerates time-to-market for Linux deployment.
How can I get started with VX/RTR migration?

To learn more about VX/RTR and how it can streamline your OpenVMS RTR migration to Linux, contact us for a detailed assessment and migration roadmap.

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