I was recently configuring a vRanger deployment to which I wanted to configure the service account running the various services to run under the context of a least privelage user.
The service account will require log on as a service permissions, db_owner permissions to the vRanger database on the SQL Server instance and also write access to the repositories you have configured.
For reference of the required privelages for the vCenter installation, the following was obtained from the Dell support site (http://documents.software.dell.com/DOC21485).
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