Hi Mohammed,
The RSSD user name in a Business Suite environment is:
<rs_instance>_RSSD_prim
In your env, for the Primary site:
rs_instance TSN_REP_sappr1
the user name would be:
TSN_REP_sappr1_RSSD_prim
The password is the same as the DR_admin password.
Yes, SCC is delivered with the ASE install.
FYI -
In a BusinessSuite environment, I think we are expecting customers will use DBACockpit to monitor and administer HADR Replication. SCC can do basic monitoring, but is not HADR aware.
Regards,
Stephen