HarbourStack · Maritime · Denmark
Zero-downtime cloud migration for a port that never sleeps
A 24/7 port operations system moved from ageing servers to AWS, without stopping a single crane.
The challenge
The port's operations system ran on end-of-life hardware in a single server room. Any outage stopped ships from being loaded.
What we did
- Rebuilt the infrastructure as code in an EU AWS region across three availability zones.
- Moved data with continuous replication, then switched traffic in a rehearsed 40-second cutover.
- Set up monitoring and a 24/7 on-call rota with written response times.
The results
0 minDowntime during migration
41%Lower infrastructure cost
99.99%Uptime in the first year
“We braced for a difficult weekend. The cutover took less time than a coffee break.”
Next case study
KlinikFlow
Patient booking for 120 clinics, GDPR from day one
Want results like these?
A free 30-minute call with a senior consultant. Honest advice, a clear next step.