oracle asm ora-15031

ora-15031 DBCA找不到ASM磁碟組

使用DBCA建立資料庫，使用ASM儲存。ASM例項已經建立，但是在建立磁碟組視窗，無法找到已經建立的ASM磁碟組。ORACLEASM顯示正常。
[yangwenchao@yangwenchao ~]$ /etc/init.d/oracleasm status
Checking if ASM is loaded: [ OK ]
Checking if /dev/oracleasm is mounted: [ OK ]
[yangwenchao@yangwenchao ~]$ /etc/init.d/oracleasm listdisks
VOL1
VOL2
VOL3
VOL4
VOL5
[yangwenchao@yangwenchao ~]$ /etc/init.d/oracleasm scandisks
Scanning system for ASM disks:

請問怎樣才能新增上ASM磁碟組？

#/etc/init.d/oracleasm createdisk VOL1 /dev/sdb
　　#/etc/init.d/oracleasm createdisk VOL2 /dev/sdc
　　#/etc/init.d/oracleasm createdisk VOL3 /dev/sdd
　　#/etc/init.d/oracleasm createdisk VOL4 /dev/sde
#/etc/init.d/oracleasm createdisk VOL5 /dev/sdf

解決方法一

[root@racdb1 ~]# /etc/init.d/oracleasm scandisks
Scanning system for ASM disks: [ OK ]
[root@racdb1 disks]# /etc/init.d/oracleasm status
Checking if ASM is loaded: [ OK ]
Checking if /dev/oracleasm is mounted: [ OK ]
注意mount在 /dev/oracleasm

建立的時候路徑要用全部路徑（絕對路徑）同時要要看
*.asm_diskgroups='ORACLE','dgtest' -----這個地方要經常更改
*.asm_diskstring='/dev/oracleasm/disks/VOL*' -----特別要注意這個地方
*.background_dump_dest='/u01/app/oracle/admin/+ASM/bdump'
*.core_dump_dest='/u01/app/oracle/admin/+ASM/cdump'
*.instance_type='asm'
*.large_pool_size=12M
*.remote_login_passwordfile='SHARED'
*.user_dump_dest='/u01/app/oracle/admin/+ASM/udump'

SQL> create diskgroup dgtest1 normal redundancy
2 failgroup dgtest_0001 disk '/dev/oracleasm/disks/VOL4' name dgtest_0003
3 failgroup dgtest_0002 disk '/dev/oracleasm/disks/VOL5' name dgtest_0004;

Diskgroup created.

　　解決方法二

　　修改$ORACLE_HOME/dbs/init+ASM.ora檔案
　　新增一行：asm_diskstring='ORCL:VOL*'
　　
　　啟動例項
　　報錯，ORA-29701: unable to connect to Cluster Manager
　　查google，查不到
　　再查metalink，原來是因為安裝完10g以後，就直接把/etc/inittab中的
　　h1:35:respawn:/etc/init.d/init.cssd run >/dev/null 2>&1 　　這句註釋了
　　原來這就是10g內建的cluster manager
　　
　　取消註釋
　　重新啟動系統
　　再次啟動例項，OK
　　

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