I am having a problem with starting up my database. I am trying to clone a database so that I can use it if the main one fails. I copied all the control files ,redo files, index files, users.dbf, system.dbf etc....,at OS level. This was done when the 2nd DB was shutdown. When I issue startup mount on the new db, I am getting ORA-01102 CANNOT MOUNT DATABASE IN EXCLUSIVE MODE. I do not have another instance running.
I chnaged the parameter " the remote_login_passwordfile = exclusive' to SHARED in init.ora, but did not help.
I issue STARTUP NOMOUNT and try to recover but, did not help.
Can anybody please guide me on what I should do to mount the databse succesfully? I am also new to oracle.