[pve-devel] QDvice

[Gilberto Nunes]

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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