Finnally !!!
Femi, thank you so much !!! I wouldn't have been able do solve this without your help.
So, just as info:
In this version ( iso ovirt-node-ng-installer-ovirt-4.2-2018053012 ) , multipah.conf seems to be alrady configured to blacklist all devices.
It already has configured :
# VDSM PRIVATE - as second line and,
blacklist {
devnode "*"
}
HE installation went fine, but after reboot the gluster volumes were not present - glusterd daemon was not enabled at boot, so the ansible playbook did not changed that.
Now, I am trying to figure out wat it would be the best procedure to create a new gluster volume on sdc drive, and put some vms to run on it.
Cockpit UI won't let me, because its asking for 3 nodes and "No two hosts can be the same" .
Should i just format the drive as xfs, mount it ( fstab ) under /gluster_briks/spinning_storage, create the gluster volume from cli and add it as a new storage domain ?
What it would be the best approach to accomplish this ?
Again, thank you very much !