We have raw disk /dev/sde which we are going add in existing Disk Group DATA.
[root@stage ~]# fdisk /dev/sde
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0x185ef87e.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (command 'c') and change display units to
sectors (command 'u').
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-8192, default 1):
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-8192, default 8192):
Using default value 8192
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@stage ~]# partprobe /dev/sde
[root@stage ~]# fdisk -l
Disk /dev/sdc: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x6dab55b0
Device Boot Start End Blocks Id System
/dev/sdc1 1 1011 1048376+ 83 Linux
Disk /dev/sdd: 6442 MB, 6442450944 bytes
199 heads, 62 sectors/track, 1019 cylinders
Units = cylinders of 12338 * 512 = 6317056 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x9904376c
Device Boot Start End Blocks Id System
/dev/sdd1 1 1019 6286180 83 Linux
Disk /dev/mapper/VolGroup00-root: 24.2 GB, 24201134080 bytes
255 heads, 63 sectors/track, 2942 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/VolGroup00-swap: 2113 MB, 2113929216 bytes
255 heads, 63 sectors/track, 257 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/sde: 8589 MB, 8589934592 bytes
64 heads, 32 sectors/track, 8192 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x185ef87e
Device Boot Start End Blocks Id System
/dev/sde1 1 8192 8388592 83 Linux
SQL> SELECT GROUP_NUMBER,NAME,SECTOR_SIZE,BLOCK_SIZE,ALLOCATION_UNIT_SIZE,STATE,TYPE TOTAL_MB,FREE_MB FROM V$ASM_DISKGROUP;
[root@stage ~]# /etc/init.d/oracleasm createdisk DATA_0001 /dev/sde1
Marking disk "DATA_0001" as an ASM disk: [ OK ]
[grid@stageoem1 ~]$ asmcmd -p
ASMCMD [+] > lsdsk
Path
ORCL:DATA_0000
ORCL:DATA_0001
ORCL:INDX_0000
ASMCMD [+] >
-- Identify the candidate Disks
SQL> SELECT
NVL(a.name, '[CANDIDATE]') disk_group_name
, b.path disk_file_path
, b.name disk_file_name
, b.failgroup disk_file_fail_group
FROM
v$asm_diskgroup a RIGHT OUTER JOIN v$asm_disk b USING (group_number)
ORDER BY
a.name;
[grid@stage ~]$ sqlplus / as sysasm
-- Add disk to the group DATA (you need to login as sysasm not sysdba)
SQL> ALTER DISKGROUP DATA ADD DISK 'ORCL:DATA_0001';
Diskgroup altered.
SQL> SELECT
NVL(a.name, '[CANDIDATE]') disk_group_name
, b.path disk_file_path
, b.name disk_file_name
, b.failgroup disk_file_fail_group
FROM
v$asm_diskgroup a RIGHT OUTER JOIN v$asm_disk b USING (group_number)
ORDER BY
a.name;
SQL> SELECT GROUP_NUMBER,NAME,SECTOR_SIZE,BLOCK_SIZE,ALLOCATION_UNIT_SIZE,STATE,TYPE TOTAL_MB,FREE_MB FROM V$ASM_DISKGROUP;
SQL> SELECT MOUNT_STATUS,HEADER_STATUS,MODE_STATUS,STATE,TOTAL_MB,FREE_MB,NAME,PATH,LABEL FROM V$ASM_DISK;