安装grid时找不到ASM共享磁盘

解决办法：

查看oracleasmlib库文件是否存在

[root@t_rac_one:~]# rpm -ql oracleasmlib-2.0.4-1.SLE10

/opt/oracle/extapi

/opt/oracle/extapi/64

/opt/oracle/extapi/64/asm

/opt/oracle/extapi/64/asm/orcl

/opt/oracle/extapi/64/asm/orcl/1

/opt/oracle/extapi/64/asm/orcl/1/libasm.so

/usr/sbin/oracleasm-discover

[root@t_rac_one:/]# cd /opt/oracle

[root@t_rac_one:/opt/oracle]# ls

bin

发现这些文件己丢失或被意外删除，因此需要重新安装。

[root@t_rac_one:~]# rpm -qa | grep -i oracleasmlib

oracleasmlib-2.0.4-1.SLE10

[root@t_rac_one:~]# rpm -e oracleasmlib-2.0.4-1.SLE10

清除残留的目录结构

[root@t_rac_one:/opt]# rm -rf oracle/

[root@t_rac_one:~]# rpm -ivh oracleasmlib-2.0.4-1.el5.x86_64.rpm(注如果你的系统是64位的一定要装64位的rpm)

Preparing...                ########################################### [100%]

   1:oracleasmlib           ########################################### [100%]

[root@t_rac_one:/opt/oracle]# ls -l

total 0

drwxr-x--- 2 root  507 80 2011-06-23 23:26 bin

drwxr-xr-x 3 root root 72 2011-07-06 04:31 extapi

重新配置oracleasm,配置完后重启oraclasm或scandisks

[root@t_rac_one:/opt/oracle]# /etc/init.d/oracleasm configure

Configuring the Oracle ASM library driver.

This will configure the on-boot properties of the Oracle ASM library

driver.  The following questions will determine whether the driver is

loaded on boot and what permissions it will have.  The current values

will be shown in brackets ('[]').  Hitting <ENTER> without typing an

answer will keep that current value.  Ctrl-C will abort.

Default user to own the driver interface [grid]:

Default group to own the driver interface [asmadmin]:

Start Oracle ASM library driver on boot (y/n) [y]:

Scan for Oracle ASM disks on boot (y/n) [y]:

Writing Oracle ASM library driver configuration: done

Initializing the Oracle ASMLib driver:                                done

Scanning the system for Oracle ASMLib disks:                          done

[root@t_rac_one:/opt/oracle]# /etc/init.d/oracleasm enable

Writing Oracle ASM library driver configuration: done

Initializing the Oracle ASMLib driver:                                done

Scanning the system for Oracle ASMLib disks:                          done

 www.it165.net

方法一：

[root@t_rac_one:/opt/oracle]# /etc/init.d/oracleasm scandisks

Scanning the system for Oracle ASMLib disks:                          done

[root@t_rac_one:/opt/oracle]# /etc/init.d/oracleasm listdisks

CRSVOL1

DATAVOL1

FRAVOL1

方法二：

[root@t_rac_one:/opt/oracle]# /etc/init.d/oracleasm restart

Dropping Oracle ASMLib disks:                      www.it165.net                   done

Shutting down the Oracle ASMLib driver:                               done

Initializing the Oracle ASMLib driver:                                done

Scanning the system for Oracle ASMLib disks:                          done

运行结果:
 

特别提示：

 oracleasmlib默认安装到/opt/oracle目录,请确保该目录访问权限配置正确,且各节点都保持一致,如下: