Hi, As you probably know, in SCOM 2012, there is no RMS role anymore. For keeping backward compatibility with some management packs that required the RMS role, Microsoft created the RMS Emulator role. By default this role is hosted on the first management
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Read the complete post at http://scug.be/blogs/christopher/archive/2012/01/09/scom-2012-move-rms-emulator-role.aspx