cinder 多后端存储 方案

[笨手笨脚越]

想问下大家cinder 多后端存储 配置，是不是只能通过修改配置文件cinder.conf、重启服务来管理，能否有方法开放api管理，有什么方案。毕竟修改配置文件不方便管理，重启服务还会影响业务。大家是否有别的方案便于管理后端配置，是否有现成的源码可以用。

[笨手笨脚越]

补充下： 我在http://www.stratoscale.com/blog/openstack/managing-openstack-cinder-backends/上看到一个方法： An innovative way to manage OpenStack Cinder backends There are other approaches to manage OpenStack Cinder backends. Stratoscale’s approach to OpenStack differs and we prefer to not use “multi-backend support,” so that we may dynamically add and remove pools to our deployments without restarting cinder-volume instances. To add pools, we spawn a new instance, and to remove them we stop one. Changing the configuration of an existing pool means interrupting requests only to that pool, minimizing the effects of the service restart. Further, we expose the storage pool configuration via APIs to our users and store the configurations in a distributed key-value store in our system. This allows our users to dynamically add and remove storage pools using our API, and our cinder-volume instances can run on any node by accessing the configuration in the key-value store. 这里说可以建立instance来管理，不设置multi-backend support，可以实现动态管理。我表示看不懂。。。