[ClusterLabs] qdevice network redundancy

[Paul B. Henson]

Hmm, I dug around the source code a bit after sending my first message.
The proxmox documentation says to use an IP address when adding a
qdevice:

https://www.proxmox.com/images/download/pve/docs/pve-admin-guide-9.0.pdf

	"pvecm qdevice setup <QDEVICE-IP>"

The qdevice only supports a single "Host" option, but it seems if you
specify an actual hostname and not an IP address it tries all of the IP
addresses associated with that hostname when connecting, and if a
connection fails, it tries them all again?

So it appears you can use a qdevice with redundancy across multiple
network links and different subnets, but only if you configure it with a
hostname that resolves to multiple IP addresses as opposed to
configuring with a single IP address?

I don't think I'd want to involve dns in cluster config, but I suppose
adding a qdevice name with multiple IP addresses to the hosts file on
each node would work.

I'll have to test this...