Are these nodes connected to a dedicated or a shared (in the sense there
are other workloads running) network switches? How fast (1G, 10G or faster)
are the interfaces? Also, how much RAM are you using? There's a rule of
thumb that says you should dedicate at least 1GB of RAM for each 1 TB of
raw
Gluster for block storage is definitely not a good choice, specially for
VMs and OpenStack in general. Also, there are rumors all over the place
that RedHat will start to "phase out" Gluster in favor of CephFS, the "last
frontier" of the so-called "Unicorn Storage" (Ceph does everything). But
when
