Hi All,
OK, so an update
TL;DR: I got it all working.
So it turns out that I had a typo in my /etc/multipath/conf.d/host.conf file, and because
all three Ceph iSCSI Gateways are identical (except for IP, Hostname, etc) I did a basic
copy-paste of the one file to all three Gateways. After discovering this (and fixing it),
I have now attached my four LUNs to the oVirt Cluster and everything *seems* AOK, both
from the oVirt-side and the Ceph-side, so I think we're all good and so we can mark
this thread as solved.
Thanks to everyone who had a hand it making suggestions and helping out - I really do
appreciate it
Cheers
Dulux-Oz