ORA-15034: disk 'string' does not require the FORCE option
Cause : An attempt was made to add the disk to the diskgroup using the FORCE option. The disk was not found to be in use at the present time, so the FORCE option was not permitted.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Avoid gratuitous use of the FORCE option.
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.