The Systems Infrastructure plug-in does not define its own roles for access controls. To manage the plug-in, you must create roles and administrators, and then assign roles to administrators. The roles restrict a user's privileges.
Note:
For security reasons, Oracle recommends that the SYSMAN account be used only as a template to create other accounts, and not used directly.
To create roles to provide management rights to users:
When the newly created administrator logs in, unlike SYSMAN, the administrator is restricted by the privileges set.