Purging GlusterFS from Proxmox
To remove GlusterFS do the following:
gluster volume stop $gluster_vol
systemctl stop glusterd
After that you can remove all the dependencies and attributes in the local gluster data brick.
apt-get remove --purge glusterfs-server -y
setfattr -x trusted.glusterfs.volume-id /data/gluster/brick`hostname|cut -b 5`
setfattr -x trusted.gfid /data/gluster/brick`hostname|cut -b 5`
rm -rf /data/gluster/brick1/.glusterfs
You might have to remove any remaining files in /var/lib/glusterfs and
/etc/glusterfs if you have problems with gluster peer probe integration
when trying to re-install.