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StarWind V2V Converter Overview (Part 5): Converting VMs to QCOW2v3

  • November 28, 2024
  • 8 min read
StarWind Solutions Architect. Anton excels in storage, virtualization, and networking, specializing in architecting highly efficient infrastructures for clients.
StarWind Solutions Architect. Anton excels in storage, virtualization, and networking, specializing in architecting highly efficient infrastructures for clients.

Introduction

Welcome to the fifth and final article in our StarWind V2V Converter series. In the previous articles, we covered converting virtual machines (VMs) to and from Oracle VirtualBox, oVirt, Proxmox, and explored hot migration from Microsoft Hyper-V to VMware ESXi. Now, we’ll delve into an exciting new feature of StarWind V2V Converter: the ability to convert your disk images into the QCOW2v3 format.

QCOW2v3 is the latest iteration of the widely used QEMU Copy-On-Write format, offering better performance, improved snapshot capabilities, and more efficient use of storage space. This makes it ideal for virtualization professionals who need a reliable, flexible, and powerful conversion tool for optimized VM migrations.

For those who haven’t yet tried StarWind V2V Converter, you can download it here to take advantage of this feature, which supports multiple hypervisors and VM formats. Ready? Let’s dive in!

QCOW2 Version 3: What’s New?

QCOW2v3 offers several improvements over previous versions, making it a preferred choice for those working with large disk images or in environments requiring high performance and robust snapshot management.

Here is my quick summary of key enhancements in QCOW2 Version 3:

  • Larger disk image support: The version 3 format supports significantly larger images, allowing up to 64 TB of virtual disk space.
  • Performance optimizations: Streamlined management of internal metadata leads to faster access, especially for large disk images.
  • Improved metadata handling: Enhancements in cluster size and alignment improve overall efficiency.
  • Stronger encryption: New encryption features provide better data security.
  • Internal snapshots: More efficient handling of snapshots minimizes performance impact and enhances snapshot management.

Despite these advancements, QCOW2v3 remains backward compatible with previous QCOW2 versions, ensuring it can be opened by software that supports older formats.

Step-by-Step Guide: Converting a VM Disk to QCOW2v3 with StarWind V2V Converter

For a full walkthrough of the process of converting VM images into the QCOW2v3 format, you can check out the video by following this link: 

Here’s a quick guide on how to use StarWind V2V Converter to migrate your VM disk image into QCOW2v3 format:

  1. Download StarWind V2V Converter: If you haven’t done so already, visit the StarWind V2V Converter website and download the tool.
  2. Install the Converter: Follow the on-screen instructions to install the software.
  3. Launch StarWind V2V Converter: Once installed, open the software from your desktop or start menu.
  4. Select source image format: On the initial screen, choose your source image format and click “Next” (In my example it’s “Local file”).

StarWind V2V Converter (9.0. 1.554)

Select the source image: Browse for the VM disk image that you want to convert (e.g., VMDK, VHD, VHDX, etc.) and choose the location of the destination image.

StarWind V2V Converter (9.0. 1.554)

6. Choose destination format: After selecting the source file, choose QCOW2 as the destination format and click “Next.”

StarWind V2V Converter (9.0. 1.554)

On the very next page, you will be able to choose QCOW2 Version 3 option.

StarWind V2V Converter (9.0. 1.554)

7. Select output file location: Pick where you want to save the newly converted QCOW2v3 file.

StarWind V2V Converter (9.0. 1.554)

8. Begin conversion: Choose whether to convert the file locally (offline) or over a network. Review your options and click “Next” to start the conversion process. The time taken will depend on the size of your VM disk.

Finished | StarWind V2V Converter (9.0. 1.554)

9. Complete and verify. Once the conversion is done, you’ll receive a confirmation message. Navigate to the folder where you saved the QCOW2 file to ensure everything went smoothly. Your QCOW2v3 file is now ready to be used with platforms like QEMU or KVM.

Conclusion

And with that, we’ve reached the end of our StarWind V2V Converter series! In this fifth and final article, we explored how to convert VMs into the QCOW2v3 format, building on the knowledge from our previous discussions on converting VMs for Oracle VirtualBox, oVirt, Proxmox, and performing hot migrations from Microsoft Hyper-V to VMware ESXi.

By now, you’ve seen just how versatile StarWind V2V Converter is in handling different formats and platforms. The addition of QCOW2v3 support brings even more power to your virtual environment, with its improved performance, larger disk image capacity, and enhanced snapshot features.

If you haven’t already, be sure to download StarWind V2V Converter and take advantage of its seamless VM migration capabilities. Whether you’re converting to or from any of the supported formats, StarWind V2V Converter remains a reliable, free tool that simplifies VM transitions.

Thank you for following along with this series. Happy converting!

Hey! Found Anton’s insights useful? Looking for a cost-effective, high-performance, and easy-to-use hyperconverged platform?
Taras Shved
Taras Shved StarWind HCI Appliance Product Manager
Look no further! StarWind HCI Appliance (HCA) is a plug-and-play solution that combines compute, storage, networking, and virtualization software into a single easy-to-use hyperconverged platform. It's designed to significantly trim your IT costs and save valuable time. Interested in learning more? Book your StarWind HCA demo now to see it in action!