How to remove a node from cluster with Ceph?

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N0_Klu3

Well-Known Member
Mar 8, 2020
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Hi all,

I want to do a clean install of my nodes one by one to upgrade to PVE 9.0.

Is there any documentation on how to do this successfully?
It also made me think, what if one of my nodes actually dies, how do I go about replacing the node?

I've found how to remove a Ceph OSD, and how to remove a node from a cluster, but nothing on the correct steps to remove Ceph and then remove the node from a cluster?

Is there any documentation that I cannot find somewhere?
 
Hello,
The procedure for the upgrade is described in details in the upgrade manuals [0].

From which version are you upgrading?
For example, if you are upgrading from PVE 7.0 and want to do in-pace upgrade, In general, As a first step, you will need to upgrade all nodes to the latest version of Proxmox VE 7.4. After that, proceed to:
  • Upgrade all nodes to the latest version of Proxmox VE 8.4 [1].
    Make sure to meet the described prerequisites for each upgrade before proceeding and and read thoroughly the known upgrade issue: Upgrade_from_7_to_8#Known_Upgrade_Issues
  • Finally, upgrade from Proxmox VE 8.4 to 9.x [2].
    Make sure to meet the described prerequisites for each upgrade before proceeding and read thoroughly the known upgrade issue: Upgrade_from_8_to_9#Known_Upgrade_Issues

As mentioned in the upgrade manuals, Proxmox VE 9.x introduces several major new features. You should plan the upgrade carefully, create and verify backups before starting.
Also you would need to make sure to read the Roadmaps for any known issues:

[0] https://pve.proxmox.com/wiki/Category:Upgrade
[1] https://pve.proxmox.com/wiki/Upgrade_from_7_to_8
[2] https://pve.proxmox.com/wiki/Upgrade_from_8_to_9

I hope this helps.
 
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