Hello, I was wondering how does exactly KVM backup and snapshoting works in Proxmox VE for qcow2 based VMs. I've been looking for an answer on the web but found nothing. If it's not a company secret I'd like to ask what kind of tools and commands are used to perform backup and snapshot tasks. Is KVM live (snapshot) backup something like:
? And how does snapshots for KVM works? As far as I can see it's a full snapshot containing VM memory state and such, so QEMU Monitor "savevm" command maybe? But as far as I know that command doesn't create a new disk image file which I can see is created by issuing snapshot command from Proxmox web panel. I'd be very grateful for satisfying my curiosity. Best regards, curious_1
Code:
qemu-img snapshot -c "backup_point" /var/lib/.../vm.img qemu-img convert -f qcow2 -O qcow2 -s "backup_point" /var/lib/.../vm.img /var/lib/.../backup/vm_bak.img lzop /var/lib/.../backup/vm_bak.img qemu-img snapshot -d "backup_point" /var/lib/.../vm.img
Last edited:
