首先先使用「glance image-delete」命令刪除所有映象，釋放磁碟空間。
停止glance服務：
service openstack-glance-api stop
service openstack-glance-registry stop
停止swift服務：
service openstack-swift-proxy stop
service openstack-swift-account stop
service openstack-swift-account-auditor stop
service openstack-swift-account-reaper stop
service openstack-swift-account-replicator stop
service openstack-swift-container stop
service openstack-swift-container-auditor stop
service openstack-swift-container-replicator stop
service openstack-swift-container-updater stop
service openstack-swift-object stop
service openstack-swift-object-auditor stop
service openstack-swift-object-replicator stop
service openstack-swift-object-updater stop
禁用swift服務：
chkconfig openstack-swift-proxy off
chkconfig openstack-swift-account off
chkconfig openstack-swift-account-auditor off
chkconfig openstack-swift-account-reaper off
chkconfig openstack-swift-account-replicator off
chkconfig openstack-swift-container off
chkconfig openstack-swift-container-auditor off
chkconfig openstack-swift-container-replicator off
chkconfig openstack-swift-container-updater off
chkconfig openstack-swift-object off
chkconfig openstack-swift-object-auditor off
chkconfig openstack-swift-object-replicator off
chkconfig openstack-swift-object-updater off
備份glance配置檔案：
改為：[glance_store]
default_store=file
filesystem_store_datadir=/var/lib/glance/images
解除安裝掛載點並授權：
umount /var/lib/glance
rm -rf /var/lib/glance/*
mkdir -p /var/lib/glance/images
chown -r glance:glance /var/lib/glance
掛載nfs：
mount 168.5.22.100:/images /var/lib/glance/images
chown -r glance:glance /var/lib/glance/images
chmod 755 /var/lib/glance/images
修改fstab檔案：
vi /etc/fstab
uuid=bb4264a8-3eb0-4ac1-93a2-0ef17821c40a /var/lib/glance xfs defaults 0 0
改為：168.5.22.100:/images /var/lib/glance/images nfs defaults 0 0
檢視glance使用者密碼：
cat /etc/glance/glance-api.conf|grep sql_connection
sql_connection=mysql:
密碼是：6cayczh8
在任一節點重建資料庫：
mysql -h 168.5.23.2 -u glance -p -e 'drop database glance;'
mysql -h 168.5.23.2 -u glance -p -e 'create database glance;'
su -s /bin/sh -c "glance-manage db sync" glance
在任一節點：
source openrc
keystone endpoint-delete 41dca7df60244d7a8b509e019560c1d9
keystone service-delete b7409203b63348d9acefe5463e3880e3
啟動glance服務：
service openstack-glance-api start
service openstack-glance-registry start
測試上傳映象：
glance image-create --name "testvm" --file /root/testvm.img --disk-format qcow2 --container-format bare --is-public true --progress
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