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Proxmox High Availability by Simon M.C. Cheng

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Virtual disk options under Proxmox VE

During the virtual machine creation, the following virtual disk options are available:

  • RAW: This is a raw file format. The disk space is allocated during the creation and will use up the specified size. When compared with QCOW2, it gives a better overall performance.
  • QCOW2: This is an enhanced version of QCOW, which offers a provisioning ability for disk storage used by QEMU. QCOW2 offers a capability to create multiple virtual machine snapshots compared to the older version. The following features are supported:
    • Thin-provisioning: During the disk creation, a file smaller than the specified size is created, and the specified size will be configured as the maximum size of the disk image. The file size will grow ...

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