Hardwares upgrade in existing cluster

[jhonnytay]

Dear Support/All,

Please advise regards the valid steps, as we soon exercising hardware upgrade. Parts to be upgrade in existing clusters are Processor (activate 2nd processor, and RAM).

Our sequence step:
1. Move all VM/CT from 1 of the nodes. E.g. Node5.
2. Shut it down node5 and plug in all the new hardware and take out the cluster network.
3. Check if new hardwares are detected in proxmox system.
4. Plug in the cluster network
5. Sub sequence will repeat the same step above in the next node.

Please advise if the above steps will work perfectly or it will only screw up the system?

Best Regards,
Jhonny

 

[aaron]

Instead of unplugging the cluster network, you can stop the HA services for the time of the upgrade.

First stop the LRM on all nodes
systemctl stop pve-ha-lrm

then the CRM
systemctl stop pve-ha-crm

If a node reboots, they will also start again, be aware of that.

Once you are done, you can start them again on all nodes in the same order, first the LRM and then the CRM.