An organization is switching a hosted database solution from a remote location to a local data center while minimizing user impact. They want to deploy a new local copy in parallel, test functionality, then redirect user activity after verifying success. Which procedure meets these objectives effectively?
A one-step switch that replaces the hosted system in a single bulk operation
Blue-green type procedure that keeps two copies active and shifts connections after testing
In-place modification of the current environment with updated components
A rolling update that moves traffic in small increments
Setting up a parallel pair of environments, verifying the new setup, and then transferring user connections fits the concept of retaining a production environment (blue) alongside a new environment (green). This approach supports comprehensive testing and provides a quick fallback if issues emerge. A rolling method shifts components gradually but can introduce more steps for a full environment deployment. An in-place method operates on the same environment and offers limited rollback options. A basic bulk migration lacks a parallel environment and imposes higher risk if issues occur.
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