Upgrade Proxmox 8.0.4 and Ceph 17.2.7 - to 9.0 and 19 - how to?

[xhunter]

Hi, I'm new to Proxmox. My environment is based on Proxmox 8.0.4 and Ceph 17.2.7 (non-subscription version), a cluster built with three nodes. I'd like to update the entire environment to the latest versions. Where should I start?
Option one: First, update Ceph to version 18, then Proxmox to version 8.4, then Ceph to version 19 and Proxmox to version 9.

Option two: Immediately update to Ceph 19 and Proxmox to version 9.

How will the environment behave if I have virtual machines there? Can I move them to one node, update two, move them to the upgraded nodes, and then update the third? Of course, the machines must be running continuously. I don't currently have a subscription.

 

[fiona]

Hi,

Option one: First, update Ceph to version 18, then Proxmox to version 8.4, then Ceph to version 19 and Proxmox to version 9.

Yes

Option two: Immediately update to Ceph 19 and Proxmox to version 9.

No

How will the environment behave if I have virtual machines there? Can I move them to one node, update two, move them to the upgraded nodes, and then update the third? Of course, the machines must be running continuously. I don't currently have a subscription.

Yes, you should migrate VMs off the node you are currently upgrading during major version upgrade. Live migration from older to newer versions is always supported. With specific configurations live migration from newer to older versions might not work. Please see the official upgrade guide: https://pve.proxmox.com/wiki/Upgrade_from_8_to_9

 

[xhunter]

Thank you very much for the quick response. Returning to the upgrade topic, should I update Ceph to version 18 first or Proxmox VE to version 8.4 first? Does it matter which is updated first?

From what I've read, I should already have Ceph 19 before upgrading to version 9.0.

 

[fiona]

Thank you very much for the quick response. Returning to the upgrade topic, should I update Ceph to version 18 first or Proxmox VE to version 8.4 first? Does it matter which is updated first?

Both ways are supported. EDIT: (at least I think it should still work, but) according to the guide: https://pve.proxmox.com/wiki/Ceph_Quincy_to_Reef it's recommended to upgrade to the latest Proxmox VE 8.x version first.

From what I've read, I should already have Ceph 19 before upgrading to version 9.0.

Yes.

 

[xhunter]

Thanks, I'll build a test environment, a cluster with 3 nodes and ceph, and run a test update.