is possible to deploy active active at CommServe level or required MS Clustering and if MS Clustering is required more license for node 2 ?
Deploy active active CommServe Server

Best answer by Scott Moseman
Installing Server Package on a SQL AlwaysOn High Availability Cluster Environment
Installing Server Packages in a Microsoft Failover Cluster Environment
Setting Up the CommServe Software in an Active-Active Cluster Environment
In the HA or FC environments, there’s only 1 instance of the CommServe, so licensing would be no different from an existing standalone CommServe.
In an Active-Active Cluster environment, you’d need a license for each CommServe instance. You could have your licensing split across the CommServes, or run a Licensing Server to consolidate the licenses into a single pool. However, I’m willing to bet this Active-Active setup is not going to provide the use-case you might be expecting.
Note: For SQL Server clusters, you will need to provide your own SQL Server installation and licensing since you cannot use the Standard Edition provided by Commvault.
Thanks,
Scott
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