Best way to migrate between clusters?

[Oldsocks]

Hello!

I'm about to move a lot of VMs off of an old server and on to a band new cluster. Old server has a big lump of local storage and the VMs have mostly qcow2 disks. New cluster has almost no local storage, with LVM on iSCSI being home for disk images. Most VMs I can move easily enough by restoring from pbs as they're pretty small. A few, however, are a couple of TB in size and restoring is going to take almost forever.

Is there a better way to move them?

 

[mira]

No, backup and restore is the only supported way.
Have you seen the `live restore` feature of PVE [0]?


[0] https://pve.proxmox.com/pve-docs/pve-admin-guide.html#vzdump_restore (16.6.2)

 

[Oldsocks]

Thankyou for the advice. I'll add more space to the backup storage and more fibre to everything and hope for the best then!

 

[linux]

Good news! This is getting closer now - noticed this in the PVE 7.3 release notes:

"Framework for remote migration to cluster-external Proxmox VE hosts"

You can run it (experimentally) via CLI already. Hallelujah!

See the man page for qm >> remote-migrate:
https://pve.proxmox.com/pve-docs/qm.1.html