Below is a quick way to find the location of your voting disk in a 10G RAC cluster
bart-> ocrdump -stdout -keyname SYSTEM.css.diskfile
09/07/2006 16:51:53
ocrdump -stdout -keyname SYSTEM.css.diskfile
[SYSTEM.css.diskfile]
ORATEXT : /crs/voting.dsk
SECURITY : {USER_PERMISSION : PROCR_ALL_ACCESS, GROUP_PERMISSION : PROCR_READ, OTHER_PERMISSION : PROCR_READ, USER_NAME : root, GROUP_NAME : root}