Cross cluster migration should have option to automatically re-VMID to range config on target cluster

deebsr

New Member
Nov 17, 2025
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I notice that moving VMs between two cluster does not allow an option to just utilize the next available range that was created for that particular cluster.

Example:
ClusterA = VMID range configure to use 1000-1099
ClusterB = VMID range configured for use 1100-1199

I create a VM01 on ClusterA which will automatically get assigned VMID 1001. If I then move that VM to ClusterB there is no option to say please re-ID this one to something in the 1100-1199 range. VM can move on cluster B that will retain its 1001 ID. Now a new VM02 is built on Cluster A and takes over VMID 1001.

If VM01 needs to migrate back to ClusterA then an error will come up due to duplicate VMIDs.

In my opinion there should be an option to say "Automatic" when it comes to the Target VMID when doing a cross-cluster migration. This would then automatically re-ID the VM to the use the target clusters configured ID range.
 
Feature requests or bug reports should be filed on bugzilla.proxmox.com since there is no guarantee the developers read everything in this community forum.
 
It's something that we are already planning to fix, but I cannot provide an ETA at the moment.
 
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