Oracle CREATE ASM DISKGROUP manually in 11gR2/12C
Create ASM DiskGroup ....!!!!
Node 1
#ls -ltr /dev/mapper/
lrwxrwxrwx 1 root root 8 Mar 29 10:01 ora_fra_0003p1 -> ../dm-29
lrwxrwxrwx 1 root root 8 Mar 29 10:01 ora_acfs_0001 -> ../dm-43
#oracleasm createdisk -v ORA_0001 /dev/mapper/ora_acfs_0001
# oracleasm listdisks
DATA_0000
FRA_0000
GRID_0000
ORA_0001 <<<<<< New disk
ls -alrt /dev/oracleasm/disks/ORA*
scan and list
# date ; hostname; oracleasm scandisks ; for d in `oracleasm listdisks | sort`; do oracleasm querydisk -p $d; done
Node2
#oracleasm scandisks
Reloading disk partitions: done
Cleaning any stale ASM disks...
Cleaning disk "ORA_0001"
Scanning system for ASM disks...
#oracleasm listdisks
DATA_0000
FRA_0000
GRID_0000
ORA_0001 <<<<<< New disk
Node3
#oracleasm scandisks
Reloading disk partitions: done
Cleaning any stale ASM disks...
Cleaning disk "ORA_0001"
Scanning system for ASM disks...
#oracleasm listdisks
DATA_0000
FRA_0000
GRID_0000
ORA_0001 <<<<<< New disk
-- for Candidate disk !!!
ASMCMD [+] > lsdsk --candidate -p
Group_Num Disk_Num Incarn Mount_Stat Header_Stat Mode_Stat State Path
set echo off feedback 6 heading on linesize 200 pagesize 300 termout on timing off trimout on trimspool on verify off
clear columns breaks computes
column disk_group_name format a12 head 'disk group name'
column disk_file_path format a45 head 'path'
column disk_file_name format a12 head 'file name'
column disk_file_fail_group format a12 head 'fail group'
column total_mb format 999,999,999 head 'file size (mb)'
column used_mb format 999,999,999 head 'used size (mb)'
column pct_used format 999.99 head 'pct. used'
break on report on disk_group_name skip 1
compute sum label "" of total_mb used_mb on disk_group_name
compute sum label "grand total: " of total_mb used_mb on report
SELECT
NVL(a.name, '[CANDIDATE]') disk_group_name
, b.path disk_file_path
, b.name disk_file_name
, b.failgroup disk_file_fail_group
, b.total_mb total_mb
, (b.total_mb - b.free_mb) used_mb
-- , ROUND((1- (b.free_mb / b.total_mb))*100, 2) pct_used
FROM v$asm_diskgroup a ,v$asm_disk b
where a.group_number (+) =b.group_number
ORDER BY a.name;
Disk Group N Path File Name Fail Group File Size (MB) Used Size (MB)
------------ --------------------------------------------- ------------ ------------ -------------- --------------
************
[candidate] /dev/oracleasm/disks/ORA_0001 0 0
************ -------------- --------------
0 0
SQL> CREATE DISKGROUP ORAFS EXTERNAL REDUNDANCY disk '/dev/oracleasm/disks/ORA_0001';
Check the disk group ...
[grid]$ asmcmd -p
ASMCMD [+] > lsdg
State Type Rebal Sector Block AU Total_MB Free_MB Req_mir_free_MB Usable_file_MB Offline_disks Voting_files Name
MOUNTED EXTERN N 512 4096 1048576 51200 51150 0 51150 0 N ORAFS/
ASMCMD [+] > ls -l + <<<< for DiskGroup !!!
ASMCMD [+] > lsdsk -t -G DATA
Create_Date Mount_Date Repair_Timer Path
01-FEB-18 01-FEB-18 0 ORCL:DATA0
01-FEB-18 01-FEB-18 0 ORCL:DATA1
01-FEB-18 01-FEB-18 0 ORCL:DATA2
01-FEB-18 01-FEB-18 0 ORCL:DATA3
set echo off feedback 6 heading on linesize 200 pagesize 300 termout on timing off trimout on
set trimspool on verify off
clear columns breaks computes
column disk_group_name format a12 head 'disk group name'
column disk_file_path format a45 head 'path'
column disk_file_name format a12 head 'file name'
column disk_file_fail_group format a12 head 'fail group'
column total_mb format 999,999,999 head 'file size (mb)'
column used_mb format 999,999,999 head 'used size (mb)'
column pct_used format 999.99 head 'pct. used'
break on report on disk_group_name skip 1
compute sum label "" of total_mb used_mb on disk_group_name
compute sum label "grand total: " of total_mb used_mb on report
SELECT
NVL(a.name, '[CANDIDATE]') disk_group_name
, b.path disk_file_path
, b.name disk_file_name
, b.failgroup disk_file_fail_group
, b.total_mb total_mb
, (b.total_mb - b.free_mb) used_mb
, ROUND((1- (b.free_mb / b.total_mb))*100, 2) pct_used
FROM v$asm_diskgroup a ,v$asm_disk b
where a.group_number (+) =b.group_number
ORDER BY a.name;
*********************************************************************
Imp ......
On all the Nodes mount the DiskGroup !!!!!!!!!!!!!!!!!!!!!
SQL> alter diskgroup ORAFS mount ;
Diskgroup altered.
*********************************************************************
If Required ..
sqlplus> alter diskgroup ORACFS set attribute 'compatible.asm'='11.2.0.0.0';
set linesize 200
col compatibility form a15
col database_compatibility form a25
col name form a20
select group_number, name, compatibility, database_compatibility from v$asm_diskgroup;
set linesize 200 pagesize 300
col value for a10
col name for a50
select group_number, name, value from v$asm_attribute
where 1=1
and group_number=1
;
GROUP_NUMBER NAME VALUE
------------ -------------------------------------------------- ----------
1 idp.type dynamic
1 idp.boundary auto
1 disk_repair_time 3.6h
Name Value
access_control.enabled FALSE
access_control.umask 066
au_size 1048576
cell.smart_scan_capable FALSE
compatible.asm 12.1.0.0.0
compatible.rdbms 10.1.0.0.0
content.check FALSE
content.type data
disk_repair_time 3.6h
failgroup_repair_time 24.0h
idp.boundary auto
idp.type dynamic
phys_meta_replicated true
sector_size 512
thin_provisioned FALSE
[grid@rac01 ~]$ asmcmd -p
ASMCMD [+] > lsattr -G DATA -l
Name Value
access_control.enabled FALSE
access_control.umask 066
au_size 1048576
cell.smart_scan_capable FALSE
compatible.asm 12.1.0.0.0
compatible.rdbms 10.1.0.0.0
content.check FALSE
content.type data
disk_repair_time 3.6h
failgroup_repair_time 24.0h
idp.boundary auto
idp.type dynamic
phys_meta_replicated true
sector_size 512
thin_provisioned FALSE
=====
set pagesize 0
select
'GROUP_NUMBER : '||GROUP_NUMBER ||chr(10)||
'NAME : '||NAME ||chr(10)||
'SECTOR_SIZE : '||SECTOR_SIZE ||chr(10)||
'BLOCK_SIZE : '||BLOCK_SIZE ||chr(10)||
'ALLOCATION_UNIT_SIZE : '||ALLOCATION_UNIT_SIZE ||chr(10)||
'STATE : '||STATE ||chr(10)||
'TYPE : '||TYPE ||chr(10)||
'TOTAL_MB : '||TOTAL_MB ||chr(10)||
'FREE_MB : '||FREE_MB ||chr(10)||
'HOT_USED_MB : '||HOT_USED_MB ||chr(10)||
'COLD_USED_MB : '||COLD_USED_MB ||chr(10)||
'REQUIRED_MIRROR_FREE_MB : '||REQUIRED_MIRROR_FREE_MB ||chr(10)||
'USABLE_FILE_MB : '||USABLE_FILE_MB ||chr(10)||
'OFFLINE_DISKS : '||OFFLINE_DISKS ||chr(10)||
'COMPATIBILITY : '||COMPATIBILITY ||chr(10)||
'DATABASE_COMPATIBILITY : '||DATABASE_COMPATIBILITY ||chr(10)||
'VOTING_FILES : '||VOTING_FILES
from v$asm_diskgroup
where 1=1
order by 1
;
set pagesize 100
