Can you confirm if the Siteminder Policy Server R12.52 SP1 running on RedHat Enterprise Linux, can have its Policy Store on MS SQL Server (2012/2104) on a Windows Platform?
Please include firstname.lastname@example.org and email@example.com in the reply please.
Siteminder policy server r12.52 SP1 supports MSSQL 2012 as policy store but in order to use MSSQL 2014, you would need to upgrade to r12.52 SP1 CR02 or later versions.
Please refer below PSM link for more details.
SAP Portal Services