VM blocked with backup or migration

[Reartu24]

Good afternoon everyone, for a few days now I've been having a problem with a VM that I can't migrate or back up because it gives me this error:

2025-10-15 15:43:30 starting migration of VM 3103 to node 'AH-NODO01' (10.3.1.161)
2025-10-15 15:43:30 starting VM 3103 on remote node 'AH-NODO01'
2025-10-15 15:43:32 start remote tunnel
2025-10-15 15:43:32 ssh tunnel ver 1
2025-10-15 15:43:32 starting online/live migration on unix:/run/qemu-server/3103.migrate
2025-10-15 15:43:32 set migration capabilities
VM 3103 qmp command 'migrate-set-capabilities' failed - There's a migration process in progress
2025-10-15 15:43:33 migration downtime limit: 100 ms
2025-10-15 15:43:33 migration cachesize: 4.0 GiB
2025-10-15 15:43:33 set migration parameters
2025-10-15 15:43:33 start migrate command to unix:/run/qemu-server/3103.migrate
2025-10-15 15:43:33 migrate uri => unix:/run/qemu-server/3103.migrate failed: VM 3103 qmp command 'migrate' failed - There's a migration process in progress
2025-10-15 15:43:34 ERROR: online migrate failure - VM 3103 qmp command 'migrate' failed - There's a migration process in progress
2025-10-15 15:43:34 aborting phase 2 - cleanup resources
2025-10-15 15:43:34 migrate_cancel
2025-10-15 15:43:35 ERROR: migration finished with problems (duration 00:00:05)
TASK ERROR: migration problems

obviously there are no migrations on this node (it is the only VM left)

I noticed that in the Ceph pool there's a disk called VM-3103-state-test, but there are no snapshots or anything else in the VM. If I try to delete that file, I get the IMAGE error.

Cannot remove image, a guest with VMID '3103' exists!
You can delete the image from the guest's hardware panel

but in the panel there is not this disk attached,
I also checked the conf file but there is no reference to this disk inside it

#Server Database CDP CDR
agent: 1
bios: ovmf
boot: order=virtio0;ide2;net0
cores: 8
efidisk0: HDD-VM:vm-3103-disk-4,efitype=4m,format=raw,pre-enrolled-keys=1,size=528K
hotplug: disk,network,usb
ide2: none,media=cdrom
machine: pc-i440fx-9.2+pve1
memory: 40960
name: CDP-CDR-DB
net0: virtio=76:74:6D:33:4F:4B,bridge=vmbr0,tag=3
numa: 0
onboot: 1
ostype: win10
scsihw: virtio-scsi-pci
smbios1: uuid=75ee83c9-09a7-4332-9d86-7537743a58af
sockets: 2
tags: 10.3.3.220;win2019
vga: vmware
virtio0: HDD-VM:vm-3103-disk-0,format=raw,size=120G
virtio1: HDD-VM:vm-3103-disk-1,format=raw,size=750G
virtio2: HDD-VM:vm-3103-disk-2,format=raw,size=450G
virtio3: HDD-VM:vm-3103-disk-3,format=raw,size=200G
vmgenid: 59aec684-ac24-4f64-a996-b93db275257f

I also updated proxmox from 8.4.10 to 8.4.14, but nothing changed unfortunately
PS: i have one cluster with 5 node and CEPH storage


How can i solve the problem?
Many thanks to anyone who can help me

 

[bbgeek17]

I noticed that in the Ceph pool there's a disk called VM-3103-state-test, but there are no snapshots or anything else in the VM. If I try to delete that file, I get the IMAGE erro

You should be able to run : qm disk rescan --vmid 3103
This should bring the disk into the VM hardware panel where you can delete it.

For migration issue - it sounds like the QEMU process, that previously tried the migration, failed. It left state behind that prevents new migrations.
You have a few choices:
- shutdown the VM to clear the state
- troubleshoot on your own using QEMU monitor and enhanced QEMU debugging steps
- procure a subscription and open a case with Support

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