Any thoughts about using QDevice with the corosync-qnetd service running in a third location?

AFAIK the QDevice mechanism can cope with higher latencies than corosync itself.

On 2/27/20 10:03 PM, John Thomas wrote:
Maybe have a tiny PVE at a third location (call it PVE-quorum)?  That way,
if one data center goes off line, you have the solution you need, the "up"
data center still having a quorum.

JT



On Thu, Feb 27, 2020 at 12:05 PM Alexandre DERUMIER <aderum...@odiso.com>
wrote:

Well you could use a virtual quorum vm, but


dc1: 4 nodes + vm ha   dc2: 4nodes

you loose dc1 -> you loose quorum on dc2, so you can't start vm on dc2.
so it's not helping.

you really don't want to use HA here. but you can still play with "pvecm
expected" to get back the quorum
if 1 dc is down.  (and maybe do dc1: 5 nodes  - dc2: 4 nodes, to avoid
loose quorum on both side)


(also I don't known what is your storage ? )


----- Mail original -----
De: "Thomas Naumann" <t...@chajuti.de>
À: "proxmoxve" <pve-user@pve.proxmox.com>
Envoyé: Jeudi 27 Février 2020 20:29:45
Objet: Re: [PVE-User] Best practice for quorum device between data centers?

hi alex,

thanks for your response...
that was our first idea too, but i don´t like it...
what about the idea of a virtual quorum device (VM) inside the cluster?
in worst case scenario (all physical connections between data centers
are broken) where will be manual choise to start virtual quorum on this
or that side of the cluster. Has anyone experience about this?

regards,
thomas
On 2/27/20 6:49 PM, Alex Chekholko via pve-user wrote:
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