I have created long time back one ASM RAC setup and I created one diskgroup with some name say
xyz. I think that instance is gone but the diskgroup was not dropped exclusively using command:
drop diskgroup xyz including contents;
Now that I have created a new setup and want to re utilize these disks, I am getting below error:
CREATE DISKGROUP XYZ EXTERNAL REDUNDANCY DISK ... ORA-15003: diskgroup "xyz" already mounted in another lock name space
How can this diskgroup be removed? Any help is appreciated.