[SOLVED] Correct way to restart a node without stopping containers or vm's

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lifeboy

Renowned Member
Oct 1, 2014
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Is there a correct way to restart a node (mostly for applying kernel updates)?

I have about 20 virtual machines and containers that should not go down ever unless planned. So I have set the all as HA. When I shutdown a node, the VM's / LXC's shut down instead of migrating to the node next in the HA config. I can of course reset the node, but then it's like crashing the node, which is not what I want to do.

How does one ensure the HA config is honoured when a node is shut down and restarted?
 
lifeboy said:
So I have set the all as HA. When I shutdown a node, the VM's / LXC's shut down instead of migrating to the node next in the HA config. I can of course reset the node, but then it's like crashing the node, which is not what I want to do.
Click to expand...

Change the "Shutdown Policy" to "migrate". This can be done in the webinterface under Datacenter → Options → HA Settings.
 
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That does migrate those LXC's or VM's set up with HA. However, is there a way to get other running VM's or LXC's to hibernate and be restored to their running state when a node is restarted, rather than to have them shutdown? That would be really useful.
 
For VMs, yes, I haven't noticed that I can hibernate the machine manually before restarting a node.

Most LXC's are services, so it's not that relevant. I just realised that it's mainly machines where users log in remotely to where this would be useful so that users don't lose their files and session contexts.
 
t.lamprecht said:
For LXC CT, no, that's not possible and won't be anytime soon.
For VMs it can be done manually, but not yet automatically - this is planed though.
Click to expand...
how's the plan going on this? even doing a manual suspension would be ok.
hyper-v does this automatically where you can reboot the host and the vm's don't notice.
what's the correct way to achieve this on proxmox?
 
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