ORAC error-ASM不显示磁盘列表

问题：安装 ORACLE GRID 没有显示 ASM 磁盘列表
原因：重新安装操作系统，ASM 磁盘保留了磁盘信息

处理步骤：

[root@bbsvrrec ~]# oracleasm listdisks
VOL1
VOL2
VOL3

[root@bbsvrrec ~]# oracleasm deletedisk VOL1
Clearing disk header: done
Dropping disk: done

[root@bbsvrrec ~]# oracleasm deletedisk VOL2
Clearing disk header: done
Dropping disk: done

[root@bbsvrrec ~]# oracleasm deletedisk VOL3
Clearing disk header: done
Dropping disk: done

[root@bbsvrrec ~]# dd if=/dev/zero of=/dev/sdb1 bs=1024k count=200
200+0 records in
200+0 records out
209715200 bytes (210 MB) copied, 7.53294 s, 27.8 MB/s

[root@bbsvrrec ~]# dd if=/dev/zero of=/dev/sdc1 bs=1024k count=200
200+0 records in
200+0 records out
209715200 bytes (210 MB) copied, 6.09232 s, 34.4 MB/s

[root@bbsvrrec ~]# dd if=/dev/zero of=/dev/sdd1 bs=1024k count=200
200+0 records in
200+0 records out
209715200 bytes (210 MB) copied, 12.4123 s, 16.9 MB/s

[root@bbsvrrec ~]# oracleasm createdisk VOL01 /dev/sdb1
Writing disk header: done
Instantiating disk: done

[root@bbsvrrec ~]# oracleasm createdisk VOL02 /dev/sdc1
Writing disk header: done
Instantiating disk: done

[root@bbsvrrec ~]# oracleasm createdisk VOL03 /dev/sdd1
Writing disk header: done
Instantiating disk: done