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OpenVMS, VAX, Alpha and Itanium server racks in an enterprise data center
OpenVMS & Legacy Systems

Keeping mission-critical OpenVMS systems running — and moving them forward on your terms.

Independent support, modernization and migration services for organizations running OpenVMS on VAX, Alpha, Itanium and x86-64 — from day-to-day administration to a fully planned path off aging hardware.

Quadex engineering team working at their desks
Who we are

An independent team focused on OpenVMS — not a vendor trying to sell you off it.

Quadex supports OpenVMS the same way we support every other part of a client's stack: with a virtual team that spans time zones, and advice that puts your systems first. Aging hardware, disappearing spares and a shrinking pool of people who still know DCL are real risks for any organization still running VAX, Alpha or Itanium — our job is to help you manage that risk on a timeline and budget that make sense for you, whether that means stabilizing what you have, emulating it, or planning a full migration.

  • Vendor-neutral advice — including telling you when the right answer is to stay put
  • Hands-on experience across VAX, Alpha, Itanium and x86-64
  • Documentation and knowledge transfer as standard, not an afterthought
  • Support for the applications running on OpenVMS, not just the operating system
Platform coverage

OpenVMS has run on four hardware generations. We work across all of them.

Whichever generation your systems are on, we can support what you have today and help you plan a path forward — including moving between platforms when the time is right.

VAX

The oldest generation (VAXserver, MicroVAX, VAX 4000–9000). Typical challenges: aging hardware, no spares, and no vendor support. We help with hardware-failure recovery, emulation options, and migration to Alpha, Itanium or x86-64.

Alpha

AlphaServer and DEC 3000/4000/ES/GS series. We provide administration, performance tuning and ongoing support, plus emulation and migration guidance when it's time to move to Itanium or x86-64.

Itanium / Integrity

HPE Integrity servers (rx and BL series). We support upgrade planning, application recompilation, and migration to OpenVMS x86-64 as Itanium hardware reaches end of life.

x86-64

The current OpenVMS platform from VSI, running on standard hypervisors. We support installation, application porting, performance tuning, and hybrid or cloud deployment planning.

Platform Era Typical status Recommended path
VAX Earliest generation Hardware at or past end of life Stabilize, emulate, or migrate
Alpha Second generation Hardware aging, spares scarce Support, emulate, or upgrade
Itanium / Integrity Third generation Hardware retirement underway Plan migration to x86-64
x86-64 Current generation Actively developed by VSI Target platform for migration

Exact OS versions and current vendor support status should always be confirmed against VSI's published information — happy to walk you through what applies to your environment.

Services

Support that covers the whole stack — not just the operating system.

From day-to-day administration to deep application work, our services are built around keeping your OpenVMS environment reliable while you decide what comes next.

Support team monitoring systems across time zones
Managed Support & AMC

Ongoing support, on a coverage model that fits your risk tolerance.

Annual maintenance contracts and managed support with tiered response, proactive monitoring, and remote, on-site or hybrid delivery — a flexible, independent alternative to an expiring vendor support contract.

  • Coverage options from business-hours to 24x7x365
  • Incident, problem and change management aligned with ITIL practice
  • Proactive monitoring, alerting and regular health reports
  • Emergency and break-fix response for critical outages

System Administration

User and account management, queue management, SYSGEN/AUTOGEN tuning, patching and OS upgrades, storage and file-system management, and documentation.

Clustering & High Availability

OpenVMS Cluster design, build and troubleshooting, Volume Shadowing, failover and rolling upgrades, and multi-site disaster-tolerant cluster design.

Application Support & Development

Support and enhancement of legacy applications (COBOL, Fortran, BASIC, C/C++, MACRO-32 and more), bug fixing, recompilation across platforms, and web-enablement of existing applications.

Networking & Connectivity

TCP/IP stacks, DECnet, secure remote access, and troubleshooting for connectivity and login issues — including modernizing older, less secure protocols.

Storage, Backup & Disaster Recovery

Backup strategy and media management, restore testing, disaster-recovery planning and drills, and data extraction and archival from systems being retired.

Security & Compliance

Security assessment and hardening, removal of insecure legacy services, access-control review, and support for the audit and compliance standards relevant to your industry.

Performance Tuning & Capacity Planning

Bottleneck analysis, memory and working-set tuning, batch-window optimization, and capacity forecasting for migrations and growth.

Health Check & Assessment

A written report covering your hardware, OS versions, licenses and applications — with risks, priorities and a recommended roadmap. The easiest way to start the conversation.

Book a Health Check →
Virtualization, Emulation & Migration

A spectrum of options — from stabilizing what you have to moving off it entirely.

We lay out the real choices in plain language, including the ones that don't involve buying anything new.

Team planning a migration and integration architecture on a whiteboard

Why organizations emulate or virtualize

When hardware is old, fragile or simply unobtainable, emulation lets you keep applications unchanged on modern servers — often with better performance, simpler backups, and a smaller data-center footprint than the original hardware.

  • Commercial VAX/Alpha emulation technology running on modern x86 servers
  • Open-source emulators for development, test and non-critical use
  • OpenVMS x86-64 on a standard hypervisor — the long-term supported platform
  • Feasibility study, P2V conversion, parallel-run validation and cutover planning with rollback
Engineers mapping out a migration pipeline

Migration, on your timeline

Migration isn't all-or-nothing. We present it as a spectrum, and help you choose honestly — including recommending you stay put when that's genuinely the right call.

  • Stay & stabilize — keep current hardware, add support and backups
  • Lift & shift — move to an emulator with no code change
  • Platform upgrade — VAX → Alpha → Itanium → x86-64
  • Rehost, rewrite, or replace — when it's time to leave OpenVMS behind

Our process: discovery and inventory → assessment and roadmap → pilot → migrate and test → parallel run → cutover and hypercare → post-migration support.

Industries relying on OpenVMS: banking, government, manufacturing and telecommunications
Industries

Wherever OpenVMS still runs the mission-critical core.

OpenVMS remains the backbone of operations across a range of industries where uptime and data integrity aren't negotiable:

  • Banking, financial services & insurance
  • Telecommunications & billing systems
  • Manufacturing & process control
  • Healthcare & laboratory systems
  • Government, defense & public sector
  • Energy, utilities & oil & gas
  • Transportation, logistics & airlines
Quadex's distributed engineering team, connected across time zones
Why Quadex

The same virtual-team model that runs the rest of Quadex, applied to OpenVMS.

We're not a hardware vendor and we're not trying to sell you a replacement platform. We're an independent team that happens to still know this stack well.

  • Specialization across all four OpenVMS hardware generations
  • Vendor-neutral advice, including when the right call is to stay put
  • A flexible, cost-effective alternative to an expiring vendor contract
  • Documentation and knowledge transfer built into every engagement

OpenVMS is a trademark of VMS Software, Inc. Other product names, logos and brands mentioned on this page are the property of their respective owners. Quadex Technology Solutions is an independent consulting firm; mention of these names does not imply endorsement or partnership.

FAQ

Common questions about OpenVMS support and migration

Is OpenVMS still supported?

Yes. VSI (VMS Software, Inc.) continues to actively develop and support OpenVMS, including the current x86-64 release. Older VAX, Alpha and Itanium systems are generally outside mainstream vendor support, which is where independent specialists like Quadex come in.

Can VAX or Alpha applications run on modern hardware?

In most cases, yes — through emulation, which lets you run the original application unchanged on current x86 servers, or through migration to a newer OpenVMS platform.

How long does a migration take?

It depends entirely on the scope — a platform upgrade with no code changes looks very different from a full rewrite. A Health Check assessment is the fastest way to get a realistic timeline for your specific environment.

What does it cost, and how do we engage you?

We work across several models — annual support contracts, retainers, time-and-materials, and fixed-price assessments — so you can pick what fits. Get in touch and we'll scope it against what you actually need.

Let's talk OpenVMS

Whether it's a health check, a migration plan, or just someone who still speaks DCL — we're here.