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AudioDan
Asked: 2013-12-20 08:00:17 +0800 CST

KVM Raw file size limitations

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What are the technical and practical size limitations of raw disk files to be used with KVM? Can I create a 2 or 3TB raw disk file as a data drive for a KVM based windows virtual machine (acutally using Proxmox as the hypervisor) without problems?

kvm-virtualization

1 Answers

  1. Best Answer

    I'm not aware of any restrictions in KVM regarding the disk size. If you use a raw file as a disk, you have of course the limitations of your filesystem (ext4 is usually limited to 16TiB per file).

    I would recommend however to use a LVM partition for your virtual machine. It has less overhead (better performance because no filesystem layer) and you can extend it easily.

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