How long did it take to fully decommission your legacy data systems after your cloud migration? How do you estimate the required timeline?

It’s all depends on how large the environment and what’s in the scope for decommission. For a 100 racks environment, including scraping the disks, recycling the cabling to decommissioning the HVAC and DC floor takes around 2 months.

The timeline for decommissioning legacy data systems post-cloud migration can vary based on factors like the complexity of the architecture, data volume, and specific business requirements. In my experience, the process typically takes several months to a year. Estimating the timeline involves a detailed assessment of the existing systems, mapping dependencies, and creating a phased plan for data migration and decommissioning. Thorough planning, testing, and a well-defined transition strategy will surely contribute to a smoother and more efficient decommissioning process.