openstack ocata中已經將cinder的glusterfs驅動移除，不再支持glusterfs
一、搭建gluster
1、節點準備
| hostname | ip | 數據盤vdb |
| g0 | 192.168.10.10 | 10G |
| g1 | 192.168.10.11 | 10G |
| g2 | 192.168.10.12 | 10G |
2、安裝glusterfs
yum install centos-release-gluster310 yum install glusterfs-server
3、創建glusterfs，登錄g0
gluster peer probe g1 gluster peer probe g2
4、對vdb分區
parted /dev/vdb -s -- mklabel gpt mkpart glusterfs 1 -1 mkfs.xfs -f /dev/vdb1
5、掛載vdb
mkdir /data
cat /srv/salt/mkfstab.sh
#!/bin/bash
uuid=`blkid /dev/vdb1 | awk -F' ' '{print $2}' | awk -F'=' '{print $2}' | sed s/\"//g`
cat <<EOF>> /etc/fstab
UUID=${uuid} /data xfs defaults 0 0
EOF
salt-ssh -i '*' cp.get_file salt://mkfstab.sh /tmp/mkfstab.sh
salt-ssh -i '*' cmd.run 'chmod +x /tmp/mkfstab.sh'
salt-ssh -i '*' cmd.run '/tmp/mkfstab.sh'
salt-ssh -i '*' cmd.run 'mount -a'
salt-ssh -i '*' cmd.run 'mkdir /data/fs'6、創建卷
gluster volume create vol0 replica 3 g0:/data/fs g1:/data/fs g2:/data/fs gluster volume start vol0
7、mount.glusterfs 讀取多少配置
以下引用自：
http://einst.blog.51cto.com/9493625/1594668/
gluster 的提供option叫backup-volfile-server和backup-volfile-servers，達到掛載時候可以指定多個讀取卷配置服務器。
使用方式如下：
mount -t glusterfs -o backup-volfile-server=gluster2 gluster1:/volume /mnt mount -t glusterfs -o backup-volfile-servers=gluster2:gluster3:gluster4 gluster1:/volume /mnt
二、配置glusterfs作爲cinder後端
1、節點準備
| host | |
| newton | 使用packstack單節點安裝newton |
| cinder-volume | 安裝cinder-volume配置glusterfs |
2、安裝openstack
通過packstack在newton節上安裝openstack newton版本，過程略
3、配置glusterfs作爲cinder後端
3.1、安裝軟件包
yum install centos-release-gluster310 yum install openstack-cinder python2-keystonemiddleware python-crypto glusterfs-fuse
3.2、配置cinder
3.2.1、從newton節點上覆制cinder.conf到cinder-volume節點，然後進行編輯
[DEFAULT] ... enabled_backends = glusterfs ... [glusterfs] volume_driver = cinder.volume.drivers.glusterfs.GlusterfsDriver glusterfs_shares_config = /etc/cinder/glusterfs_shares volume_backend_name=glusterfs
3.2.2、編輯/etc/cinder/glusterfs_shares
g0:/vol0 g1:/vol0 g2:/vol0
3.2.3、啓動cinder-volume節點上的cinder-volume
systemctl enable openstack-cinder-volume systemctl start openstack-cinder-volume
4、在nova compute節點上安裝mount.glusterfs
yum install centos-release-gluster310 yum install glusterfs-fuse
5、配置cinder使用多後端
cinder type-create glusterfs cinder type-key one set volume_backend_name=glusterfs cinder extra-specs-list