Databases, backups, and keeping modest servers alive. Updated when something is worth writing down, which is less often than I intend.
A backup you have never restored is a hypothesis. Here is the forty-minute exercise I now run every quarter, and the three things it caught the first time.
More connections did not mean more throughput. The fix was smaller numbers in two places and one line of documentation explaining why.
A short post about the evening I spent recovering a server whose disk had quietly filled with container logs, and the four lines that prevent it.