红帽全球峰会2.13. 启用 NFV 环境的最终更新
如果您的环境启用了网络功能虚拟化(NFV)，则需要在更新 undercloud 和 overcloud 后执行下列步骤。
流程
您需要迁移现有的 OVS-DPDK 实例，以确保 vhost 套接字模式从 dkdpvhostuser 变为 OVS 端口中的 dkdpvhostuserclient 模式。我们建议您对现有的实例进行快照，并根据该快照镜像重建新实例。有关实例快照的详情，请参阅管理实例快照。
快照实例并从快照引导新实例：
查找 overcloud 访问详情：
$ source ~/overcloudrc查找您要生成快照的实例的服务器 ID：
$ openstack server list在生成快照前关闭源实例，以确保所有数据清理到磁盘：
$ openstack server stop SERVER_ID创建实例的快照镜像：
$ openstack image create --id SERVER_ID SNAPSHOT_NAME使用这个快照镜像引导新实例：
$ openstack server create --flavor DPDK_FLAVOR --nic net-id=DPDK_NET_ID--image SNAPSHOT_NAME INSTANCE_NAME（可选）验证新实例状态为
ACTIVE：$ openstack server list
对需要快照和重启的所有实例重复此步骤。
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