Reinstalling a node in a cluster from scratch without changing the hostname

[Pierre-Philippe Lessard]

Hello,

I have a node (let's name it pm04) that have a lot of problems and I would like to reinstall it from scratch. I don't want to keep any configuration data from its current installation. Is it possible to :
- Turn off the node
- Delete pm04 from my cluster
- Reinstall the node using the same hostname
- Join the node to the cluster

Or should I rename it in order to make sure not to have any issue?

Thank you!

 

[tom]

you do not have to delete the node. just re-install using the same hostname and then join to the cluster using the force flag

> pvecm add IP --force

make sure that both server have the same software updates installed.

 

[Pierre-Philippe Lessard]

Thank you.

I planned to reinstall the server using a more recent version of proxmox (3.1 instead of 2.3). Should I delete the node before I proceed? Is it a bad idea?

 

[tom]

Thank you.

I planned to reinstall the server using a more recent version of proxmox (3.1 instead of 2.3). Should I delete the node before I proceed? Is it a bad idea?

you can only join servers with the same software versions. so if your cluster is 2.3, you should not join a 3.1 node.

 

[Pierre-Philippe Lessard]

Ok thank you for your help.

I'll check later for the cluster upgrade process.

 

[m.ardito]

Tom answer above it the officialpath, but I did a 2.1 cluster upgrade mixing 3.1 without problem (experimented before on a test cluster, btw nested)
see this post, and whole thread http://forum.proxmox.com/threads/16688-Proxmox-2-3-Cluster-to-3-1-Upgrade?p=86099#post86099

Marco