The FSMO role owners are stored in Active Directory in different locations depending on the role. The DN of the server holding the role is actually stored as the FSMO Role Owner attribute of various objects. For the Ignitedsoul.com domain, here are the containers that hold that attribute in the following order: PDC Role Owner, Infrastructure Master, RID Master, Schema Master, and Domain Naming Master:
LDAP://dc=Ignitedsoul,dc=com
LDAP://cn=Infrastructure,dc=Ignitedsoul,dc=com
LDAP://cn=RID Manager$,cn=System,dc=Ignitedsoul,dc=com
LDAP://cn=Schema,cn=Configuration,dc=Ignitedsoul,dc=com
LDAP://cn=Partitions,cn=Configuration,dc=Ignitedsoul,dc=com
The information in the attribute is stored as a DN, representing the NTDS Settings object of the domain controller that is the role owner. So, example contents for this attribute are:
CN=NTDS Settings, CN=MYSERVER1, CN=Servers, CN=My Site, CN=Sites,
CN=Configuration, DC=Ignitedsoul, DC=com
IgNiTeD SoUL 