Clone the boot SSD in cluster mode

[dorinxev]

Hi,
I've seen few threads about cloning the boot disks to another disk/SSD, some used clonezilla (which, as of this moment, still having problems cloning the Proxmox boot SSD), some use dd.
My problem is a bit different: I have a cluster of 3 nodes (prox,prox2,prox3, I've created the cluster from prox2 and this node has a problematic SSD), and since this is a cluster, one cannot simply copy the /etc/pve since it comes from the other nodes.

So, what is the short and a simple way to replicate my SSD on this prox2 node? delete the node, install Proxmox on a new SSD and join it to the cluster? any other ideas?

 

[bbgeek17]

I've created the cluster from prox2

it doesnt matter, all nodes are equal

one cannot simply copy the /etc/pve since it comes from the other nodes

why cant you copy - aren't you using clonezilla as a boot source, so /etc/pve is empty due to cluster services not running. Its a special fuse filesystem and it wont be there. Just clone your disk and boot from it. If clone worked fine, then it should be completely transparent.

---

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

 

[dorinxev]

I tried several times to clone the disk using Clonezilla, either disk to disk, disk to network and then to disk, In all cases it seems to perform syncing after cloning a section, and then it fails. I've also tried multiple SSD's, so it's not related to specific disk, that's why I thought about new node install and that's why I'm asking if I need to perform more steps..

 

[bbgeek17]

You can review this discussion:
https://forum.proxmox.com/threads/reinstalling-a-node-within-a-cluster.50517/
https://forum.proxmox.com/threads/reinstall-node-in-cluster.64281/
https://pve.proxmox.com/pve-docs/chapter-pvecm.html#_remove_a_cluster_node

---

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

 

[dorinxev]

Cool! Thanks for the info and links

 

[gfngfn256]

I tried several times to clone the disk using Clonezilla, either disk to disk, disk to network and then to disk, In all cases it seems to perform syncing after cloning a section, and then it fails

I have never successfully cloned PVE boot disk with Clonezilla. However I've done it many times with DD. Just remove original disk & replace with newly cloned one BEFORE booting up. In your case, I'd shut the whole cluster down before booting anew.