Cloud Migration
A staged move to the cloud with discovery, wave planning and a rollback path for every step.
Read moreMigration & Modernisation
Database Migration Services
Moving databases to managed services with replication, verified data integrity and minimal downtime.
Overview
Databases are the part of a migration where mistakes are least forgivable. An application can be redeployed; silently corrupted or partially migrated data may not be noticed for weeks, by which point the original is gone.
We use continuous replication so the target stays synchronised while the source keeps serving traffic, validate row counts and checksums before cutover, and keep the original available and readable until everyone is confident.
What you get
Minimal downtime
Continuous replication means the cutover window is minutes, not a weekend.
Integrity verified
Row counts, checksums and business-rule validation run before anyone commits to the new system.
Performance protected
Query plans, indexing and instance sizing checked against production-like load before cutover, not after.
Reversible
The source database stays available and consistent until the new one has proven itself in production.
How we work
- 01
Analyse
Schema, size, growth, query patterns and any engine-specific features that will not port cleanly.
- 02
Prepare
Target provisioned and sized, schema converted where engines differ, and incompatibilities resolved.
- 03
Replicate
Initial load followed by continuous change capture, with lag monitored until it is consistently near zero.
- 04
Cut over
Brief write freeze, final sync, validation against agreed criteria, then application switch with rollback ready.
Common questions
Can we change database engine at the same time?
Yes, though it adds significant work. SQL Server to PostgreSQL is common and worthwhile; it needs schema conversion, query rewriting and thorough testing.
How much downtime should we expect?
With replication, typically minutes for the final sync and switch. Large databases without replication tooling may need a longer window, which we would flag early.
What about the data itself during transfer?
Encrypted in transit and at rest, with access limited to the migration service accounts and a documented, auditable trail.
Often paired with
Data Engineering & Pipeline Development
Pipelines that run reliably, fail loudly, and can be explained to whoever asks where a number came from.
Read moreDisaster Recovery & Business Continuity Planning
Recovery you have actually rehearsed, at a cost the business can justify.
Read moreReady to talk about database migration services?
We will tell you what we would do, roughly what it costs, and whether it is worth doing yet.