Migrate OCR ASM Diskgroup To Another Storage

Query css votedisk.

~]$ crsctl query css votedisk

##  STATE    File Universal Id                File Name Disk group
--  -----    -----------------                --------- ---------
1. ONLINE   73e1c48069d64fefbfc44cd8e65107d8 (ORCL:OCR_VOTE1) [OCR_VOTE]
Located 1 voting disk(s).

Query the fail groups.

col path for a20
col state for a10
col failgroup for a15
col name for a15
select dg.name,dg.state,dg.type,d.disk_number,d.path,d.mount_status,d.failgroup,d.name,d.state
 from v$asm_diskgroup dg, v$asm_disk d
 where dg.group_number=d.group_number and dg.name='OCR_VOTE'
 order by dg.name,d.disk_number;

NAME            STATE      TYPE   DISK_NUMBER PATH                 MOUNT_S FAILGROUP       NAME            STATE
--------------- ---------- ------ ----------- -------------------- ------- --------------- --------------- ----------
OCR_VOTE        MOUNTED    EXTERN           0 ORCL:OCR_VOTE1       CACHED  OCR_VOTE1       OCR_VOTE1       NORMAL
OCR_VOTE        MOUNTED    EXTERN           1 ORCL:OCR_VOTE2       CACHED  OCR_VOTE2       OCR_VOTE2       NORMAL
OCR_VOTE        MOUNTED    EXTERN           2 ORCL:OCR_VOTE3       CACHED  OCR_VOTE3       OCR_VOTE3       NORMAL

Create new disks.

oracleasm createdisk NEW_OCR_VOTE1 /dev/sdi1
oracleasm createdisk NEW_OCR_VOTE2 /dev/sdj1
oracleasm createdisk NEW_OCR_VOTE3 /dev/sdk1

From node1 add each disk to a fail group.

sqlplus " / as sysasm"

-- external type not need to specify a fail group
ALTER DISKGROUP OCR_VOTE ADD DISK
'ORCL:NEW_OCR_VOTE1',
'ORCL:NEW_OCR_VOTE2',
'ORCL:NEW_OCR_VOTE3'
REBALANCE POWER 8;

Check gv$asm_operation till it returns no rows.

SQL> select * from gv$asm_operation;
no rows selected

SQL> col path for a20
col state for a10
col failgroup for a15
col name for a15
select dg.name,dg.state,dg.type,d.disk_number,d.path,d.mount_status,d.failgroup,d.name,d.state
 from v$asm_diskgroup dg, v$asm_disk d
 where dg.group_number=d.group_number and dg.name='OCR_VOTE'
 order by dg.name,d.disk_number;

NAME            STATE      TYPE   DISK_NUMBER PATH                 MOUNT_S FAILGROUP       NAME            STATE
--------------- ---------- ------ ----------- -------------------- ------- --------------- --------------- ----------
OCR_VOTE        MOUNTED    EXTERN           0 ORCL:OCR_VOTE1       CACHED  OCR_VOTE1       OCR_VOTE1       NORMAL
OCR_VOTE        MOUNTED    EXTERN           1 ORCL:OCR_VOTE2       CACHED  OCR_VOTE2       OCR_VOTE2       NORMAL
OCR_VOTE        MOUNTED    EXTERN           2 ORCL:OCR_VOTE3       CACHED  OCR_VOTE3       OCR_VOTE3       NORMAL
OCR_VOTE        MOUNTED    EXTERN           3 ORCL:NEW_OCR_VOTE1   CACHED  NEW_OCR_VOTE1   NEW_OCR_VOTE1   NORMAL
OCR_VOTE        MOUNTED    EXTERN           4 ORCL:NEW_OCR_VOTE2   CACHED  NEW_OCR_VOTE2   NEW_OCR_VOTE2   NORMAL
OCR_VOTE        MOUNTED    EXTERN           5 ORCL:NEW_OCR_VOTE3   CACHED  NEW_OCR_VOTE3   NEW_OCR_VOTE3   NORMAL

Drop old disks.

ALTER DISKGROUP OCR_VOTE DROP DISK
'OCR_VOTE1',
'OCR_VOTE2',
'OCR_VOTE3'
REBALANCE POWER 8;

Check gv$asm_operation till it returns no rows.

SQL> select * from gv$asm_operation;
 no rows selected

SQL> col path for a20
col state for a10
col failgroup for a15
col name for a15
select dg.name,dg.state,dg.type,d.disk_number,d.path,d.mount_status,d.failgroup,d.name,d.state
 from v$asm_diskgroup dg, v$asm_disk d
 where dg.group_number=d.group_number and dg.name='OCR_VOTE'
 order by dg.name,d.disk_number;

NAME            STATE      TYPE   DISK_NUMBER PATH                 MOUNT_S FAILGROUP       NAME            STATE
--------------- ---------- ------ ----------- -------------------- ------- --------------- --------------- ----------
OCR_VOTE        MOUNTED    EXTERN           3 ORCL:NEW_OCR_VOTE1   CACHED  NEW_OCR_VOTE1   NEW_OCR_VOTE1   NORMAL
OCR_VOTE        MOUNTED    EXTERN           4 ORCL:NEW_OCR_VOTE2   CACHED  NEW_OCR_VOTE2   NEW_OCR_VOTE2   NORMAL
OCR_VOTE        MOUNTED    EXTERN           5 ORCL:NEW_OCR_VOTE3   CACHED  NEW_OCR_VOTE3   NEW_OCR_VOTE3   NORMAL

Delete old disks.

oracleasm deletedisk OCR_VOTE1
oracleasm deletedisk OCR_VOTE2
oracleasm deletedisk OCR_VOTE3