I am a Principal Cloud Architect using OpenStack on GlusterFS.
As a well known member of the Gluster community and Gluster board member, Joe is an expert at GlusterFS deployments and design. His position with IO allows him to define the standards for using scale-out clustered storage with OpenStack.
He's also a really nice guy.
I'm involved in the following OpenStack projects: Nova,Swift,Glance,Cinder,Openstack-ci