Uploaded October 2025 | Updated September 2026, 1 week ago

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lawrence.video/xcp-ng

XCP-ng has finally the 2 TiB virtual disk cap. With the new QCOW2 beta, you can now create disks up to 16 TiB, take advantage of built-in compression, and get a more modern, flexible storage format. In this video, I’ll cover what’s changing under the hood, how to enable the beta.

Blog post announcing the beta
xcp-ng.org/blog/2022/06/02/understanding-the-storage-stack-in-xcp-ng

Blog post covering storage history
xcp-ng.org/blog/2022/06/02/understanding-the-storage-stack-in-xcp-ng

Storage Design Video
lawrence.video/storagedesign


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Chapters
00:00 XCP-ng Finally Supports Bigger Virtual Disks
01:25 Backup and Size Notes
02:03 How to test the beta
02:29 Expanding Drives and Converting an Existing VM
04:34 Storage Design Considerations