We followed the PRINCE2 methodology, starting with an initial meeting to set expectations, confirm deliverables and identify possible risks – security being a high priority.
Since NHS Digital is a managed provider, shared network data can’t be migrated with the appropriate security measures. As experts in defence-level security, compliance and regulatory requirements, moving data with those measures was a risk we were not willing to take.
So, we had to split the project in two parts:
Phase 1 – Migrate services to OneDrive for personal network drives (individual OneDrive subscriptions already have security measures)
Phase 2 – Migrate services to Microsoft Teams for shared network drives
Then it was time to get migrating.
Firstly, we ran data analytics through Quest to identify the quantity of existing data, its age and if there were any duplicates, corrupt files or ones that OneDrive does not support. This allowed us to implement file exclusions during the migration.
We then moved onto the migration itself. Avoiding business disruption was key, so we had to schedule migration jobs to run outside of business hours. We also had weekly calls with the trust to identify any issues, plan mitigations and alternatives, to keep the project on track.