Allready asked but i can not find a solution to snapshot my server2019 VM


New Member
Oct 3, 2022
Hello all,
I have already installed my VM in a number of ways, but I keep running into the problem that I cannot take a snapshot.
The server is installed with the page with inserting the virtio drivers
the virtio-win-0.1.240.iso is used.

My Proxmox
Version 7.3-3 ( When iám ready ill go to 8)
The VM is on the DISK-3TB Type is LVM 2,5TB fee space


root@pve02:~# qm config 106 agent: 1 boot: order=scsi0;net0;ide0 cores: 2 machine: pc-i440fx-7.1 memory: 8192 meta: creation-qemu=7.1.0,ctime=1697223017 name: WindowsServer2019VI net0: virtio=6E:ED:57:BC:DF:14,bridge=vmbr0,firewall=1 numa: 0 ostype: win10 scsi0: DISK-3TB:vm-106-disk-0,cache=writeback,size=100G scsihw: virtio-scsi-pci smbios1: uuid=c248a5fe-3cce-4eaa-ba1d-b723bd03b2ca sockets: 1 vmgenid: d3d1bcc6-d7e4-4fd4-a146-e67a83f62858


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The VM is on the DISK-3TB Type is LVM 2,5TB fee space
If it's not on thin-LVM, you will not be able to take a snapshot von thick-LVM. Snapshots don't need guest os support and you cannot do anything in you guest to be able to snapshot the VM from the ouside besides having snapshot backend storage support.

Change to thin-LVM or format the disk and use QCOW2 and you'll be able to snapshot as you like.
  • Like
Reactions: ProxmoxBoy1
LnxBil, That solved my problem. Added extra disk setup as thin-LVM. Shutdown my VM's and start moving.
All VM's 800 GB take some time, but it was busy in my sleep.


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