#disaster-recovery

Cloud & Infrastructure

Choosing an AWS disaster recovery strategy by RPO and RTO, workload by workload

John Nguyen · Oct 4, 2026 · 8 min read

Backup and restore, pilot light, warm standby and active-active are not maturity levels. They are price points for a given RPO and RTO. Here is how we picked a different strategy for each of five workloads, what each one cost, and how we prove the numbers.

Databases Bug Report

Our restored MySQL Docker volume would not start: a tar backup of a live InnoDB data directory

Le Minh Khoa · Apr 24, 2026 · 7 min read

When a small self-hosted service lost its disk, we restored the MySQL Docker volume from last night's tar backup, and MySQL refused to start with InnoDB corruption errors. The backup had been a file copy of a running database. How we recovered from an older dump, and the backup approach and restore drills we use now.