安装grid时找不到ASM共享磁盘

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  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 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: