what is the best way to change a file name within the same asm disk

Dear group,

I am using Oracle 10.2.03 on linux.

I used nid to change the dbname from "test" to "dev", but select name
from v$datafile still show
filename as "+data1/test/users.xxxx", so I have to use  RMAN "copy
datafile 'xxx' to '+data1'  to change the file path, it is very slow.

It there any better way to do this?

Thanks for  your help