Outdated infrastructure becomes costly to maintain and support. Learn planning, risk mitigation, and phased migration strategies for modernization.
Orion IT Service Team
February 10, 2026
Infrastructure ages and becomes increasingly expensive to maintain. Older hardware requires more frequent repairs, consumes more power, and can't run modern software efficiently. Outdated operating systems stop receiving security updates, creating compliance and security risks. At some point, upgrading becomes more cost-effective than maintaining failing systems.
Infrastructure migrations are complex projects that require careful planning. Done poorly, migrations cause significant disruption. Done well, they improve reliability, security, performance, and reduce costs. A good migration strategy minimizes downtime, validates that systems work after migration, and provides rollback if problems occur.
Understand the current state. What systems exist? Which are critical? What dependencies exist between systems? How much data needs to move? What does capacity look like? This inventory drives the entire migration strategy.
Define the target state. What should the infrastructure look like after migration? What new capabilities do you want? How does this align with business strategy and budget?
Identify dependencies and risks. What could go wrong? What would be most impactful? What do you need to mitigate these risks? Testing, backup plans, and fallback options reduce risk.
Lift and shift moves systems as-is to new infrastructure. This is faster than redesign but may not take advantage of new capabilities. Big bang migration does this all at once, while phased migration does it gradually. Phased is lower risk but takes longer.
Refactor and re-architect redesigns systems for the new environment. This takes longer but can result in better performance and lower ongoing costs. For example, moving to cloud and redesigning for cloud-native architecture rather than just running the same applications.
Before migration affects production, test everything. Run applications in the new environment and verify they work correctly. Perform performance testing to ensure new systems are actually faster. Test failure scenarios to verify recovery procedures work.
Pilot migration involves migrating a non-critical system or small user group first, finding problems at scale before affecting everyone.
Some migrations can happen without user-visible downtime. Dual-run operations where both systems work in parallel, with a cutover at a specific moment, minimize downtime. Other migrations require scheduled downtime.
Scheduling migration for times with minimal business impact—weekends or after hours—reduces impact. Communication to users about when downtime will occur and what to expect is critical.
Key Takeaway
Careful migration planning, phased approaches, and extensive testing ensure infrastructure upgrades improve systems without causing unplanned downtime or data loss.
Plan Your Infrastructure Upgrade