Block format 'raw' does not support internal snapshots

[prahn]

Hi!

I have a 3-node-cluster with CEPH storage, running the latest version 9.1.1.
Of course all virtual hard disks on CEPH have the same format (raw) as nothing else can be used here.
Today, I wanted to make a snapshot, but I receive an error in the log:

snapshotting 'drive-scsi0' (ceph-ssd:vm-103-disk-0)
internal qemu snapshot
snapshot create failed: starting cleanup
TASK ERROR: VM 103 qmp command 'blockdev-snapshot-internal-sync' failed - Block format 'raw' used by device 'drive-scsi0' does not support internal snapshots

Why does this happen?
Other VMs make snapshots without any problem?!

Could someone help?

Regards,
Ingo

 

[bbgeek17]

Can you provide additional information:
pveversion
qm config [vmid]
cat /etc/pve/storage.cfg
cat /etc/pve/qemu-server/[vmid].conf
pvesm status

Are other VMs running on the same node? Are they located on the same storage (qm config [vmid])
Has this VM been cold started since the upgrade to 9.x?

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[prahn]

Yes, of course, please find it here:

root@pve1:~# pveversion
pve-manager/9.1.1/42db4a6cf33dac83 (running kernel: 6.17.2-1-pve)
root@pve1:~# qm config 103
agent: 1
boot: order=scsi0;ide2
cores: 4
description: **Windows Server 2012 R2**
ide2: none,media=cdrom
machine: pc-i440fx-8.2
memory: 8192
name: XXX-RemoteAccess
net0: virtio=42:64:66:42:3C:2F,bridge=vmbr0
numa: 0
onboot: 1
ostype: win11
scsi0: ceph-ssd:vm-103-disk-0,discard=on,size=250G
scsihw: virtio-scsi-pci
smbios1: uuid=4ba49397-6faf-41b4-9f32-5841641b9f80
sockets: 1
startup: order=3,up=60,down=60
vmgenid: 28bae31c-de0a-44d7-9662-53d8452df8aa
root@pve1:~# cat /etc/pve/storage.cfg
dir: local
        path /var/lib/vz
        content vztmpl,images,iso
        prune-backups keep-all=1
        shared 0

rbd: ceph-ssd
        content rootdir,images
        krbd 0
        pool ceph-ssd


root@pve1:~# cat /etc/pve/qemu-server/103.conf
#**Windows Server 2012 R2**
agent: 1
boot: order=scsi0;ide2
cores: 4
ide2: none,media=cdrom
machine: pc-i440fx-8.2
memory: 8192
name: XXX-RemoteAccess
net0: virtio=42:64:66:42:3C:2F,bridge=vmbr0
numa: 0
onboot: 1
ostype: win11
scsi0: ceph-ssd:vm-103-disk-0,discard=on,size=250G
scsihw: virtio-scsi-pci
smbios1: uuid=4ba49397-6faf-41b4-9f32-5841641b9f80
sockets: 1
startup: order=3,up=60,down=60
vmgenid: 28bae31c-de0a-44d7-9662-53d8452df8aa
root@pve1:~# pvesm status
Name             Type     Status     Total (KiB)      Used (KiB) Available (KiB)        %
PBS               pbs     active     33729232896     21258394624     12470838272   63.03%
ceph-ssd          rbd     active      5247890479      2300979503      2946910976   43.85%
local             dir     active       451089920        42832000       408257920    9.50%

 

[bbgeek17]

Nothing stands out. The system should not be using Internal Snapshots with RBD. I'd recommend making sure that you are running the latest available software (apt update), and if the issue continues - utilize the support channel to open a ticket.

Let us know how it works out.

Cheers

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox