Using rsync and snapshotting to simplify backups of large ext4 filesystems

Introduction to rsync and snapshotting

Dealing with large ext4 filesystems can make backups a real challenge. I’ve seen this go wrong when using traditional backup methods like tar or cp - they can be slow and resource-intensive. That’s where rsync and snapshotting come in - they can simplify the backup process and reduce the strain on your system.

What is rsync?

rsync is a fast and versatile command-line utility that synchronizes files and directories across different locations. The real trick is that it uses a delta-transfer algorithm, which only transfers the differences between the source and destination, making it an efficient tool for backups. You can use rsync to synchronize files locally or over a network.

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Troubleshooting Disk Usage Issues with Duplicate Files and Unnecessary Logs on Btrfs and Ext4 Filesystems

Introduction to Disk Usage Issues

I’ve seen disk usage issues plague even the most well-maintained Linux systems, often due to duplicate files and unnecessary logs. As of 2026, both Btrfs and Ext4 filesystems are widely used, each with their own set of tools and best practices for troubleshooting and resolving these issues. In this article, we’ll delve into practical steps for identifying and addressing duplicate files and unnecessary logs on both Btrfs and Ext4 filesystems, focusing on current tools and methodologies.

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