Testing HA

[dixie2000]

Greetings,

I have a 2 node cluster with a Raspberry Pi serving as a QDevice. I have ZFS configured on a separate drives on each node. I have several VM and CT running on local storage at the moment. I have create a 'test' CT on the ZFS pool and setup replication and HA. All is working.

My question is, before moving all the VM and CT from local storage to the ZFS pool how can I test the HA process on this one CT without out powering off the node or pulling the network cable which would shut down all the other VM's and CT's. Is there a way to simulate a shutdown for this one CT to see if it will start on the second node?

Hope my question makes sense.

Thanks!

 

[gfngfn256]

Your question makes perfect sense - I've looked in the past for such a solution but found none.
The only workaround would be to first migrate all other critical VMs & LXCs to the other node & then remove the network cable to test the remaining test LXC for HA.
Thats all I've got AFAIK.

 

[dixie2000]

@gfngfn256

Thanks for your reply. I guess since this is just my home Lab I could power everything off except my "text" CT and pull the network cable

 

[Dunuin]

Did you try enabling the maintainance mode for that node? See:
https://pve.proxmox.com/pve-docs/chapter-ha-manager.html#_maintenance_mode

You can use the manual maintenance mode to mark the node as unavailable for HA operation, prompting all services managed by HA to migrate to other nodes.

 

[dixie2000]

Looking at this now, thanks!