How to migrate VM from one PVE cluster to another

[BlueMatt]

This is an awesome feature, thanks y'all! Is there a way to get it to work with ceph? Currently trying to migrate with Ceph disks hits "ERROR: no export formats for 'cephtwo:vm-1046-disk-0' - check storage plugin support!"

 

[fabian]

not at the moment, but we will extend the volume handling code to allow moving a volume from and to RBD.

 

[BlueMatt]

Ironically it works for live migration, just not for offline migration. In any case, just managed to move a full cluster over a frustratingly slow WAN link, awesome feature! Took a week, but there were zero hiccups outside of having to comment out the checks that prevent migration if the VM was based on a snapshot of an image (which presumably just meant more disk usage on the target cluster, but otherwise appears to have left disks totally fine on the other side).

 

[fabian]

Ironically it works for live migration, just not for offline migration. In any case, just managed to move a full cluster over a frustratingly slow WAN link, awesome feature! Took a week, but there were zero hiccups outside of having to comment out the checks that prevent migration if the VM was based on a snapshot of an image (which presumably just meant more disk usage on the target cluster, but otherwise appears to have left disks totally fine on the other side).

great to hear RBD (offline) support is definitely on the todo list, and (including) snapshots is also up on the table since we want to take a stab at snapshot-based RBD replication at some point as well.

 

[mikeleffring]

Just curious @fabian if this cross-cluster migration was ever completed?

 

[fabian]

the cross cluster ("remote") migration feature exists, but it is still marked as experimental.

 

[mikeleffring]

the cross cluster ("remote") migration feature exists, but it is still marked as experimental.

Thanks for the update. I am using proxmox in my homelab to get away from some non-genuine vmware keys and loving pve so far. I am also at an org the is very close to going with proxmox or xen and has 2 large data centers. The only concerns they had were native support for iscsi and the single pane of glass multi-cluster management. Which isn't really the need. The need was cross cluster migration. once that makes enterprise and can be tested, our org will likely make the jump over.