The following table provides an overview of migration scenario’s for moving your IT infrastructure to a new datacenter, move your Infrastructure to the cloud. This list is non-conclusive.
| A –Lift & Shift | B – Ramp down & up | C – Bridge head | D – Split Brain | E – Virtual Move | |
| Period in dark (no-service) | Long (physical migration of systems) | Medium | Medium | Short | Short |
| Period reduced performance | Dark + step-up | Dark + step-down&up | Medium & step-up | None (except for nodes in transition) | None |
| Effort | Lowest (to plan & execute) | Medium, communication, logical move | Medium, relatively oversee able | High, network prep/stretch | Network stretch, Virtual move |
| Risk | High (Big-bang) | Medium (cutover after quality gate) | Low | Low | Low |
| € | Lowest | A + Medium | A ++ Requires additional hardware | A++ Probably network equipment & fibers | New Landing zone + network equipment |
| Acceptance risk (full U/SAT possible) | Yes (on critical cutover path) | Limited, On bridgehead | Limited, On “new” bridgehead | On 50% of hosts transferred | On landing zone, and at 50% |
The following flowchart provides some guidance selecting the right transition scenario:
