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原因：重新安装操作系统，ASM磁盘保留了磁盘信息
处理步骤：
[[email?protected] ~]# oracleasm listdisks
VOL1
VOL2
VOL3
[[email?protected] ~]# oracleasm deletedisk VOL1
Clearing disk header: done
Dropping disk: done
[[email?protected] ~]# oracleasm deletedisk VOL2
Clearing disk header: done
Dropping disk: done
[[email?protected] ~]# oracleasm deletedisk VOL3
Clearing disk header: done
Dropping disk: done
[[email?protected] ~]# 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
[[email?protected] ~]# 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
[[email?protected] ~]# 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
[[email?protected] ~]# oracleasm createdisk VOL01 /dev/sdb1
Writing disk header: done
Instantiating disk: done
[[email?protected] ~]# oracleasm createdisk VOL02 /dev/sdc1
Writing disk header: done
Instantiating disk: done
[[email?protected] ~]# oracleasm createdisk VOL03 /dev/sdd1Writing disk header: doneInstantiating disk: done
（编辑：李大同）
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