Oracle 10g RAC (Linux) ASM 共用儲存的管理詳解

ASM 的管理（共用磁碟的管理）
1、以 instance 的方式管理 ASM，啟動 database 之前必須先啟動 ASM instance，ASM instance 啟動後，掛載 ASM 磁碟組。
---------安裝 ASM 管理軟體、驅動
1、查看作業系統核心版本（OS Kernel 版本）
[root@rac11 ~]# uname -a
Linux rac11 2.6.9-67.ELsmp #1 SMP Wed Nov 7 13:58:04 EST 2007 i686 i686 i386 GNU/Linux
2、查看OS上是否安裝ASM相關的軟體
[root@rac01 ~]# rpm -qa |grep asm
Oracleasm-2.6.9-67.EL-2.0.3-1（注意和os kernel 版本一致）
oracleasmlib-2.0.4-1.el4
oracleasm-support-2.1.4-1.el4
安裝ASM軟體包
[root@rac22 asm]# rpm -Uvh oracleasm-support-2.1.4-1.el4.i386.rpm

[root@rac22 asm]# rpm -Uvh oracleasm-2.6.9-67.EL-2.0.3-1.i686.rpm

[root@rac22 asm]# rpm -Uvh oracleasmlib-2.0.4-1.el4.i386.rpm

[root@rac22 asm]# rpm -Uvh oracleasm-2.6.9-67.ELsmp-2.0.3-1.i686.rpm

[root@rac11 ~]# service oracleasm
Usage: /etc/init.d/oracleasm {start|stop|restart|enable|disable|configure|createdisk|deletedisk|querydisk|listdisks|scandisks|status}

[root@rac22 asm]# service oracleasm status
Checking if ASM is loaded: no
Checking if /dev/oracleasm is mounted: no
[root@rac22 asm]# service oracleasm enable
Writing Oracle ASM library driver configuration: done
Initializing the Oracle ASMLib driver: [  OK  ]
Scanning the system for Oracle ASMLib disks: [  OK  ]
[root@rac22 asm]# service oracleasm status
Checking if ASM is loaded: yes
Checking if /dev/oracleasm is mounted: yes
[root@rac11 ~]# chkconfig oracleasm on

----------查看 ASM instance 初始化參數檔案
 
[oracle@rac22 dbs]$ cat init+ASM2.ora | grep -v '^#'

cluster_database=true
 
background_dump_dest=/u01/app/oracle/admin/+ASM/bdump
core_dump_dest=/u01/app/oracle/admin/+ASM/cdump
user_dump_dest=/u01/app/oracle/admin/+ASM/udump
 
instance_type=asm
 
large_pool_size=12M
 
remote_login_passwordfile=exclusive
 
asm_diskgroups='DATA1','FRA'
 
 
+ASM2.instance_number=2
+ASM1.instance_number=1

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