[PVE-User] question regarding quorum/qdevice on raspberry pi for dual-node cluster
a.lauterer at proxmox.com
Thu Feb 20 14:56:59 CET 2020
That wiki page describes how to set up a full corosync instance on the RPI.
Using one with Qdevice and the corosync-qnetd service installed on it is
fine. See our documentation for it .
I updated the warning on the Wiki page to make it clearer why that wiki
page needs to be considered with care.
On 2/20/20 1:40 PM, Roland @web.de wrote:
> on this page https://pve.proxmox.com/wiki/Raspberry_Pi_as_third_node
> there is told:
> "Raspberry Pi as third node - This is only suited for testing or homelab
> use. Never use it in a production environment! Simply use a QDevice!""
> On https://pve.proxmox.com/wiki/Roadmap for Proxmox 5.4 there is the
> following announcement:
> QDevice support via `pvecm`
> * primarily for small 2-node clusters adding a qdevice can help
> mitigate the downside of not being able to reboot one node without
> losing quorum (and thus the ability to make any changes in the
> cluster) ** Can also help in clusters with a larger even number of
> nodes by providing a tie-break vote.
> * Integration into pvecm and PVE stack vastly simplifies adding a
> qdevice (it was possible manually before as well)
> my question is why there is information around which looks like
> discouraging rasperry pi as third node for quorum, i.e. is a raspberry
> pi with Qdevice (
> ->https://blog.jenningsga.com/proxmox-keeping-quorum-with-qdevices/ )
> suitable for production use or not ?
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