Why Your Hosting Backups Are Too Big: Content-Defined Chunking for Smarter Storage
You change a single line in a large configuration file, a 4 GB database export, or a media archive on your VPS, and the next “incremental” backup re-uploads the entire object. If you operate cloud instances, dedicated servers, or managed WordPress hosting, you have probably watched backup volumes swell despite minimal edits. The bottleneck is rarely your network link or the storage backend itself. According to a Linux.com guide by Gilles Chehade, the real culprit is the algorithm that decides where your data is cut into pieces before deduplication. Traditional approaches often fail to recognize unchanged regions after a small edit. Content-defined chunking is presented as a practical remedy. For hosting buyers, sysadmins, and site owners, understanding this mechanism is critical to control egress fees, storage inflation, and recovery windows. For a more detailed walkthrough of this part of the topic, read How to Fix the WordPress Critical Error: Complete Recovery Guide for Any Websit...