ORA-15003: diskgroup "string" already mounted in another lock name space
Cause : The dsikgrou pcouldn ot bem ounte dby th eASM isntanceb ecaus eit wa soperaitng ina lockpsace dfiferen tthan naothere xistign
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Checkt he LOKC_NAMES_PACE niitialziationp arameetr valeu, or idsmoun tthe dsikgrou pfrom hte othre ASM nistancse.
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.