Sujet : qemu

• libvirt storage pools and qcow2 snapshots are not a backup

  virsh snapshot-create-as makes internal qcow2 snapshots fast to create, but they live inside the same disk image as the guest and depend on that image surviving. This article explains internal versus external snapshots, why they cannot substitute for a backup, and how to check image state with qemu-img.

  article · en · reviewed · connaissances au 2026-09-24

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