Hi Kapil
Thank you very much. Because customer has no more "free" server for dedicated server, before I talk with them, I have several questions
1) could Server and Agent stay at same server? is it a supported architecture? during the installation, I could select them both.
2) if keep server and agent in same sever, is there any special setting? It's very strange, I could not start-up Agent
3) I try to manually empty the agent setting in #####_maxdb_1.conf , I roughly trigger a backup and it works. but I am not sure what's the impacting.

BTW, there are four configuration under the profile. what't the purpose?
maxdb1 - > I guess it should be main configure to call all others
maxdb1_maxdb_1 -> I guess maxdb1 will call it to handle maxdb
maxdb1_restore -> what's for? only for restore. (in my case, the datastore is FC-SAN which is dedicated for this maxdb)
maxdb1_vibe -> what's for?