Comprehensive IBM i (AS/400) Services
Most companies with IBM i face a dilemma: multi-million dollar migration or risk losing support. We'll maintain your AS/400 systems safely and efficiently. You gain continuity of critical business processes without costly replacement.
What are comprehensive IBM i (AS/400) system services?
Comprehensive IBM i services cover 24/7 administration, performance and security monitoring, RPG/COBOL application modernization, OS version migrations, and integration of AS/400 data with modern web applications and cloud systems — without requiring a costly full platform replacement. nFlo specialists bring 20+ years of IBM i experience and offer a fixed-fee retainer that provides business continuity for companies whose only admin has retired or whose in-house expertise is disappearing.
Business-critical systems cannot fail
Comprehensive IBM i support
24/7 Administration
Monitoring, maintenance, technical support
Modernization
Upgrade RPG applications without rewriting
Integration
Connection with modern systems
System Works, But Nobody Knows It Anymore
Manufacturing company with IBM i (AS/400) system from 1998. Entire ERP, finances, production - everything on AS/400. Only admin retired. Nobody in company knows how system works. Every failure means hours of downtime and fear of data loss.
Without IBM i support:
- Production downtime due to lack of technical competence
- Unable to develop - system “freezes” in current state
- Growing failure risk without ability to respond quickly
- Necessity for costly migration to new system (€750k-1.25M)
IBM i Security
IBM i systems often run critical processes yet are frequently “invisible” in security programs. Our services bring order to access control, privilege and patch management and auditing — so the legacy platform is not the weakest link.
We ensure data encryption, event logging and compliance, so IBM i modernization improves not only performance but also resilience to threats.
We Take Responsibility for Your IBM i
We don’t force migration. We provide professional IBM i system support with full service package - from daily administration to application modernization.
What you get:
- 24/7 monitoring and technical support from IBM i specialists
- System administration - backups, security, performance tuning
- RPG/COBOL application modernization without rewriting from scratch
- Integration with modern systems (REST API, web services)
- Migrations between OS/400 and IBM i versions
- Knowledge transfer for your team
- Environment and procedure documentation
Administration and Modernization Scope
Our IBM i services cover the full platform lifecycle — from day-to-day operations to strategic application modernization.
Administration and monitoring operate 24/7 using IBM Navigator for i, ROBOT/CONSOLE, and custom monitoring scripts. We manage job queues, message queues, disk pools, journal receivers, and PTF (Program Temporary Fix) application, with regular performance reviews. Backups are handled through BRMS (Backup Recovery and Media Services) with routine restore testing to verify recoverability.
Security hardening covers system value configuration (QSECURITY level 40/50), user profile and object authority reviews, exit point security implementation, adopted authority auditing, and disk encryption and TLS communication setup. We conduct compliance reviews against CIS Benchmark for IBM i guidelines, addressing the security gaps most commonly exploited in legacy environments.
RPG/COBOL application modernization is a gradual process that does not require a full rewrite. We convert programs from RPG III to RPG IV free-format, add web interfaces via RPG CGI or the RPGUI framework, build REST APIs using IWS (Integrated Web Services), and connect DB2 for i data to external systems through SQL Services. This approach preserves decades of battle-tested business logic while delivering modern interfaces and integration capabilities.
Version migrations are performed using side-by-side upgrade or IOSSP (IBM i Operating System Save and Restore) methods, with a full rollback plan and maintenance window agreed with business stakeholders. We handle the complete migration path from PTF currency verification through test environment validation to production cutover.
Who Is It For?
This service is for you if:
- You run business on IBM i system and are losing technical competence
- You need 24/7 support for critical business systems
- You want to modernize applications but without risk and cost of total migration
- You plan IBM i integration with modern systems (cloud, web apps)
- You face choice: costly migration or maintain current system
Related Glossary Terms
Learn more about key concepts related to this service:
Contact your account manager
Discuss Comprehensive IBM i (AS/400) Services with your dedicated account manager.
How we work
Our proven service delivery process.
Environment Audit
Assess IBM i state, applications, integrations
Action Plan
Maintenance and modernization strategy
Support Takeover
Knowledge transfer, documentation, monitoring
Stabilization
Performance and security optimization
Development
Application modernization and integrations
Benefits for your business
What you gain by choosing this service.
Business Continuity
Critical systems run without downtime
Avoid Costly Migration
Save millions on system replacement
Expert Access
IBM i specialists always available
Predictable Costs
Fixed monthly fee instead of crises
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Read more →Frequently Asked Questions
Common questions about Comprehensive IBM i (AS/400) Services.
Do we have to migrate from IBM i to a new system?
No. We do not force migration. IBM i is a stable platform that can serve for years. We provide professional support, RPG/COBOL application modernization and integration with modern systems - without the costly replacement (typically 3-5 million PLN).
What does the support takeover from the current provider or admin look like?
The process includes an environment audit (1-2 weeks), configuration and application documentation, knowledge transfer from the current team, 24/7 monitoring setup and a transition period with parallel support. The whole process takes 4-6 weeks.
Can you integrate IBM i with modern applications?
Yes. We build REST APIs and web services on the IBM i platform, enabling integration with web applications, cloud and modern systems. Data from AS/400 becomes accessible to mobile applications, BI dashboards or e-commerce systems.
What cooperation models do you offer?
Two models: project-based (audit, version migration, specific application modernization) or a fixed retainer with 24/7 administration, monitoring, backups and technical support for a fixed monthly fee.
Do you modernize RPG applications without rewriting from scratch?
Yes. We modernize existing RPG/COBOL applications gradually - adding web interfaces, REST APIs, improving performance. We preserve business logic tested over the years, avoiding the risk and cost of rewriting from scratch.