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I like bytes, they're handy! I also like laying them in the right way to make things work and work fast. It turns out I'm far from the only byte-nerd out there :) In this post I'll dive deep into how Prometheus, an open source metrics and monitoring service, represents time series information on the disk. To write this post, I've read Prometheus' implementation, played around with real data and also read this series of posts by Ganesh Vernekar. My goal is not to provide full documentation,…
Automated backups that work are mind-liberating! I've shared in the previous post how I back up my data. In this post I'll explore in detail how I handle encryption to protect my server and the insuing backup disks. What does my system solve? My encryption usage is meant to protect mostly against this threat: if a stranger has access to any of my disks while they are unenergised, they must not be able to access my data. For the backup disks this is rather simple to achieve by using full disk…
