[pve-devel] QDvice

[Thomas Lamprecht]

Yes, if this storage can run the corosync-qnetd daemon.
So, if your storage is a Linux-ish Box then it's highly probable that 
you can install it.
There are also BSD ports of corosync, so in general it should be 
possible there too.

Note, that while currently I would not recommend it for any enterprise 
operation,
I did some successful test with running the qnet daemon on a Raspberry 
PI (1 and 3).
So, this would be surely interesting for homelab setups too, IMHO.

cheers,
Thomas

On 03/31/2017 12:42 PM, Gilberto Nunes wrote:
> Thanks for this nice explanation Thomas.
> I suppose qdevice could be install in the storage for 2 node cluster
> solution,  right??
>
>
>
> Em 31 de mar de 2017 04:24, "Thomas Lamprecht" <t.lamprecht at proxmox.com>
> escreveu:
>
> 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
>
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