We can use the following steps to migrate OCR and Vote Disk from RAW to ASM Disk.

Step 1:- Check the current OCR File status

bash-3.2$ ./ocrcheck

Status of Oracle Cluster Registry is as follows :

        Version                  :          3

        Total space (kbytes)     :     100192

        Used space (kbytes)      :       6376

        Available space (kbytes) :      93816

        ID                       : 1523118380

        Device/File Name         : /dev/rdsk/c1t1d0s0

                                   Device/File integrity check succeeded

                               Device/File not configured

                                   Device/File not configured

                                   Device/File not configured

                                   Device/File not configured

        Cluster registry integrity check succeeded

        Logical corruption check bypassed due to non-privileged user

Step 2:- Check the Voting Disk status

bash-3.2$ ./crsctl query css votedisk

##  STATE    File Universal Id                File Name Disk group

--  -----    -----------------                --------- ---------

1. ONLINE   3cdba20959096f37ffebf8b0da6b741e (/dev/rdsk/c1t1d0s1) []

Located 1 voting disk(s).

Step 3:- Create a new ASM diskgroup for OCR and Voting disk.

SQL> create diskgroup data external redundancy disk ‘/dev/rdsk/c1t1d0s4’, ‘/dev/rdsk/c1t1d0s5’;

SQL> alter diskgroup CRS mount;

Step 4:- Change the compatible version of the asm diskgroup to 11.2

SQL> select name,COMPATIBILITY,DATABASE_COMPATIBILITY from v$asm_diskgroup;

NAME        COMPATIBILITY    DATABASE_COMPATIBILITY

--------------------------------------------------------------------------------------

DATA        10.1.0.0.0        10.1.0.0.0

CRS        10.1.0.0.0        10.1.0.0.0

SQL> alter diskgroup DATA set attribute 'compatible.asm'='11.2';

SQL> alter diskgroup CRS set attribute 'compatible.asm'='11.2';

Step 5:-  Move the voting disk from raw to ASM with the crsctl command:

root>./crsctl replace votedisk +CRS

           

Step 6:- Check the voting disk on ASM after the migration                         

root>./crsctl query css votedisk

Step 7:- View existing OCR before migration using the ocrcheck command

root>./ocrcheck            

Step 8:- ADD new OCR by providing ASM diskgroup

root> ./ocrconfig -add +CRS

Step 9:- Run ocrcheck again after adding asmdg for OCR

root> ./oracle/11.2.0/gridhome/bin/ocrcheck

Step 10:- Delete the old OCR with the ocrconfig command:

root> ./oracle/11.2.0/gridhome/bin/ocrconfig -delete /dev/rdsk/c1t1d0s0

Step 11:- Re-run ocrcheck again after deleting the old OCR

root> ./ocrcheck