[pve-devel] QDvice

[Thomas Lamprecht]

Hi,

On 03/30/2017 10:38 PM, Gilberto Nunes wrote:
> Hi folks
>
> I have read something about QDevice will be implement inside PVE 5.x.
> What is the purpose of QDevice? Is it mean that it will be possible have a
> secure 2 node cluster??

A QDevice is a daemon that runs on an external Server,
said Server does not have to be a Proxmox VE Node (but theoretically it 
can be),
it is enough to be a Linux distribution which supports Corosync and has 
it packaged.

2 Node is still not really possible at least in the classical sense, 
what is possible is a 2
Proxmox VE nodes and a third outside of cluster node.
So it should be a improvement for the not seldom 2 PVE Nodes + 1 Storage 
Box setup.

As it runs over TCP and updates in a 20 second interval, or immediately 
on partition
change (node connection loss/addition), it is a little more flexible 
regarding network
than UDP/multicast.

The current beta has a small bug during the installation of 
corosync-qdevice, a fix has
been applied to our git already and should get packaged and released in 
the next days.
With this fix you are already able to try it out, I'm trying to document 
it and evaluate if
we can automate the addition sanely :)

cheers,
Thomas