On 09/07, Swapnil Kulkarni wrote:

Hello Cinder Team,

Can someone provide a reference documentation for active/active support for a Cinder Driver w.r.t. configuration and any driver changes expected?

Best Regards, Swapnil

Hi, You can check support for a specific driver on the driver support matrix page [1]. As far as I know the configuration is not spelled out in the docs, so it will depend on the deployment tool you use. Basically there are 3 parts: - DLM deployment: It is necessary to deploy an external service to be used as the Distributed Lock Manager. This service must be supported by the TooZ library. - Cinder configuration: Make sure that the "host"/"backend_host" configuration option is unique for each cinder service, define a name for the cluster in the "cluster" option, configure the "backend_url" in the "[coordination]" section. - Configure the HA cluster resource manager for an Active-Active cinder-volume service. Cheers, Gorka. [1]: https://docs.openstack.org/cinder/latest/reference/support-matrix.html#opera...