ORA-15065: hash collision for diskgroup names 'string' and 'string'
Cause : There was a collision in the group name used for the diskgroup. The diskgroup(s) cannot be mounted using colliding names.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Use a different diskgroup name and also report to Oracle Support Services the two diskgroup names which collided.
Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.