5.1 u1 SSO fails on SQL cluster

Hi All,

We are trying to install vcenter 5.1 u1 (build 1123966). We created two SSO databases and users using the scripts given (rsaIMSLiteMSSQLSetupUsers.sql and rsaIMSLiteMSSQLSetupTablespaces.sql) on SQL 2008 R2 Enterprise Cluster. When we give the required parameters in SSO installation, it fails with "User doesn't have the required permission error". When we check the vm-sso-javalib.log, it says "[2013-06-12 13:58:36,147]ERROR   515[main] - com.vmware.vim.installer.core.logging.CoreLoggerImpl.error(?:?) - java.lang.IllegalAccessException: User RSA_PRI_DBA does not have the sufficient permission." We checked the permissions on database side and everything looks ok (anyway RSA_PRI_DBA is not given sysadmin role). Appreciate your help on this. I saw in an article that any kind of database clusters are not supported by SSO (» Disabling vSphere 5.1 Single Sign-on (SSO) – Don’t do it! Long White Virtual Clouds). Can it be the case ?

Thanks.