Migrate without copying the storage?

[quentinsf]

I want to migrate a VM with a fairly large disk image to another machine in my cluster, but the storage on the two nodes isn't sufficiently compatible to do it directly.

I could do a backup and restore - I think that's the best way - but my NFS backup server is a bit slow.

So I copied the disk image directly from one node to the other because, hey, I'd never played with zfs send and zfs recv before!

And now I have the disk already in place on the new node as a ZFS volume... but is it possible to migrate all the definition of the VM across somehow without actually copying the storage and then attach it to the image at the other end?

Or shall I just do the backup and restore over a weekend?

Thanks!
Quentin

 

[bbgeek17]

Just take the context of the /etc/pve/qemu-server/[vmid].conf and copy it to remote node, edit as needed and start the VM.

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[quentinsf]

Ah, brilliant - thanks! I have lots of experience of virtualisation and containers but am very new to Proxmox and QEMU. It's a delight to discover that so much is just in the filesystem.

Much obliged,
Q