Migration between 2 clusters using Proxmox Datacenter Manager failing

[nvanaert]

Hello everyone,

I just tried migrating a virtual machine from 1 cluster to another cluster using Proxmox Datacenter Manager, but it's failing:

failed - failed to handle 'disk-import' command - no matching import/export format found for storage 'standard' <- This is the error I should be looking at from what I assume, but why would no compatible storage be found?

2026-08-11 19:31:53 remote: started tunnel worker 'UPID:hv01:00046E63:0011C3F8:6A7B5C89:qmtunnel:1001:root@pam!pdm-admin-pdm01:'
tunnel: -> sending command "version" to remote
tunnel: <- got reply
2026-08-11 19:31:54 local WS tunnel version: 2
2026-08-11 19:31:54 remote WS tunnel version: 2
2026-08-11 19:31:54 minimum required WS tunnel version: 2
websocket tunnel started
2026-08-11 19:31:54 starting migration of VM 109 to node 'hv01' (standard.domain.local)
tunnel: -> sending command "bwlimit" to remote
tunnel: <- got reply
tunnel: -> sending command "bwlimit" to remote
tunnel: <- got reply
tunnel: -> sending command "bwlimit" to remote
tunnel: <- got reply
2026-08-11 19:31:54 found local disk 'VM-ZFS:vm-109-disk-0' (attached)
2026-08-11 19:31:54 found local disk 'VM-ZFS:vm-109-disk-1' (attached)
2026-08-11 19:31:54 found local disk 'VM-ZFS:vm-109-disk-2' (attached)
2026-08-11 19:31:54 copying local disk images
tunnel: -> sending command "disk-import" to remote
tunnel: <- got reply
2026-08-11 19:31:54 ERROR: error - tunnel command '{"format":"raw","volname":"vm-1001-disk-0","with_snapshots":1,"migration_snapshot":1,"cmd":"disk-import","storage":"standard","snapshot":"__migration__","allow_rename":"1","export_formats":"zfs"}' failed - failed to handle 'disk-import' command - no matching import/export format found for storage 'standard'
2026-08-11 19:31:54 aborting phase 1 - cleanup resources
tunnel: -> sending command "quit" to remote
tunnel: <- got reply
2026-08-11 19:31:55 ERROR: migration aborted (duration 00:00:02): error - tunnel command '{"format":"raw","volname":"vm-1001-disk-0","with_snapshots":1,"migration_snapshot":1,"cmd":"disk-import","storage":"standard","snapshot":"__migration__","allow_rename":"1","export_formats":"zfs"}' failed - failed to handle 'disk-import' command - no matching import/export format found for storage 'standard'
TASK ERROR: migration aborted

 

[Supaman]

easiest way:
make backup, ie. to SMB share or setup proxmox backup server in VM
map same SMB / PBS to new machine and make a restore.

or try pegaprox, they have a mighty import function.