dnf install glusterfs glusterfs-cli glusterfs-server

# systemctl start glusterd.service
# systemctl status glusterd.service

# gluster peer probe gluster2

# gluster volume create gv0 replica gluster1:/storage/brick1/gv0/ gluster2:/storage/brick1/gv0/
# gluster volume start gv0

# gluster volume set gv0 auth.allow 192.168.122.*

# gluster volume info gv0

mount -t glusterfs gluster1:/gv0 /mnt/glusterfs/

gluster peer probe gluster3
gluster volume add-brick replica 3 gv0 gluster3:/storage/brick1/gv0/

gluster volume remove-brick gv0 gluster3:/storage/brick1/gv0/
gluster peer detach gluster3

gluster volume rebalance gv0 start

# virsh pool-define /tmp/gluster-storage.xml
# virsh pool-start glusterfs-pool

<Listing 3>
<pool type='gluster'>
   <name>glusterfs-pool</name>
   <source>
      <host name='192.168.122.191'/>
      <dir path='/'/>
      <name>gv0</name>
   </source>
</pool>
<Listing 3>

# virsh pool-list --all

qemu-img create gluster://192.168.122.191/gv0/rhel7.img 4G

# virsh vol-list glusterfs-pool

# virt-install --name rhel7 --memory 4096 --disk vol=glusterfs-pool/rhel7.img,bus=virtio --location ftp://192.168.122.1/pub/products/rhel7/