### file: server-volume.vol.sample

#####################################
###  GlusterFS Server Volume File  ##
#####################################

#### CONFIG FILE RULES:
### "#" is comment character.
### - Config file is case sensitive
### - Options within a volume block can be in any order.
### - Spaces or tabs are used as delimitter within a line. 
### - Multiple values to options will be : delimitted.
### - Each option should end within a line.
### - Missing or commented fields will assume default values.
### - Blank/commented lines are allowed.
### - Sub-volumes should already be defined above before referring.

### Export volume "brick" with the contents of "/home/export" directory.
volume brick
  type storage/posix                   # POSIX FS translator
  option directory /home/export        # Export this directory
end-volume

glusterfsd.vol.sample provided with the latest release
-----------------------------------------------------------------
-----------------------------------------------------------------
### Add network serving capability to above brick.
volume server
  type protocol/server
  option transport-type tcp
# option transport-type unix
# option transport-type ib-sdp
# option transport.socket.bind-address 192.168.1.10     # Default is to listen on all interfaces
# option transport.socket.listen-port 24016              

# option transport-type ib-verbs
# option transport.ib-verbs.bind-address 192.168.1.10     # Default is to listen on all interfaces
# option transport.ib-verbs.listen-port 24016              
# option transport.ib-verbs.work-request-send-size  131072
# option transport.ib-verbs.work-request-send-count 64
# option transport.ib-verbs.work-request-recv-size  131072
# option transport.ib-verbs.work-request-recv-count 64

# option client-volume-filename /etc/glusterfs/glusterfs-client.vol
  subvolumes brick
# NOTE: Access to any volume through protocol/server is denied by
# default. You need to explicitly grant access through # "auth"
# option.
  option auth.addr.brick.allow * # Allow access to "brick" volume
end-volume
---------------------------------------------------------------------

There are other files also which are similarly outdated.
We need to check whether to keep these or prune them.