Notes from the work

What we learned building the thing.

Engineering notes, architecture decisions and post-mortems from live work. Written by the people who shipped it.

1 post in DevOps & Cloud

DevOps & CloudAug 31, 202617 min read
When 2 Million Patient Records Run on Borrowed Time: A Healthcare Database Migration Story
A regional hospital network moves 65 TB of clinical data to AWS without losing a record or an hour of clinical access. The four phases, the five non-negotiable constraints, and why the cutover is never where a migration succeeds.
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