If you are planning to move your VOTING DISK to another ASM disk, then follow the below steps.

Below activities Need to be done from ROOT user.

Check the existing voting disk details.

root@TEST:/crsapp/app/oracle/product/grid12c/bin# ./crsctl query css votedisk
##  STATE    File Universal Id                File Name Disk group
--  -----    -----------------                --------- ---------
 1. ONLINE   f7385c77e5854f7abfc2860ad3b1dfdc (/dev/rdsk/c0t60000970000296800433533030334339d0s6) [MGMTDB]
Located 1 voting disk(s).

Now move the disk to OCRVD asm disk

root@TEST:/crsapp/app/oracle/product/grid12c/bin# ./crsctl replace votedisk +OCRVD
Successful addition of voting disk ab03f02f1d3d4fbcbff09cc8638e921e.
Successful addition of voting disk 97a8408d14214f8fbf5873fcbcb4d557.
Successful addition of voting disk a29133f5f03c4fa4bf8a360eed1032d6.
Successful deletion of voting disk f7385c77e5854f7abfc2860ad3b1dfdc.
Successfully replaced voting disk group with +OCRVD.
CRS-4266: Voting file(s) successfully replaced

Check the voting disk details again

root@TEST:/crsapp/app/oracle/product/grid12c/bin# ./crsctl query css votedisk
##  STATE    File Universal Id                File Name Disk group
--  -----    -----------------                --------- ---------
 1. ONLINE   ab03f02f1d3d4fbcbff09cc8638e921e (/dev/rdsk/c0t60000970000296800433533030334342d0s6) [OCRVD]
 2. ONLINE   97a8408d14214f8fbf5873fcbcb4d557 (/dev/rdsk/c0t60000970000296800433533030334343d0s6) [OCRVD]
 3. ONLINE   a29133f5f03c4fa4bf8a360eed1032d6 (/dev/rdsk/c0t60000970000296800433533030334344d0s6) [OCRVD]
Located 3 voting disk(s).