SERVICE · MIGRATIONS
The cutover window is not one night, it is a quarter
We split every migration into short, reversible cutovers. The infrastructure changes, production keeps running, your users notice nothing.
A big-bang cutover is a gamble, not a method
A classic migration concentrates all the risk on a single night. If the cutover fails, two options remain: an improvised rollback or a morning of downtime.
Your production does not stop. Billing, monitoring, traffic: these systems do not tolerate a pause of several hours, and neither do your customers.
One quarter, three phases
01
Map and rehearse
We inventory the flows, the dependencies and the possible maintenance windows. Each cutover is then rehearsed outside production, until the procedure holds without improvisation.
02
Cut over one small scope at a time
The migration is split into short cutovers, one per scope. Each has a measurable success criterion and a tested rollback procedure. At a telecom operator, there were 20 in three months.
03
Measure before moving on
After each cutover, we compare the metrics with the baseline taken before. The next cutover starts only if the numbers hold. Otherwise: rollback, analysis, new attempt.
A telecom migration, in numbers
0 min
BILLABLE DOWNTIME
20
REVERSIBLE CUTOVERS
3 months
TOTAL DURATION
Kubernetes migration at a telecom operator, from the first mapping to the 20th cutover.
A quarter beats a sleepless night
Describe your current setup, the target and your production constraints. We come back with a first breakdown into cutovers and its rollback points.