11g 删除磁盘组步骤

安装客户核心生产数据库，磁盘组名不对，需要删除，重新创建。

删除磁盘组步骤如下：

su - gridsqlplus / as sysasmSQL> select group_number, name from v$asm_diskgroup;GROUP_NUMBER NAME------------ --------------------------------------------------           1 DATADGSQL> col path for a40SQL> col name for a40SQL> set lines 120SQL> select path, name from v$asm_disk where group_number=1;PATH                                     NAME---------------------------------------- ----------------------------------------/dev/rhdiskpower0                        DATADG_0000/dev/rhdiskpower1                        DATADG_0001/dev/rhdiskpower2                        DATADG_0002/dev/rhdiskpower3                        DATADG_0003/dev/rhdiskpower4                        DATADG_0004SQL> SQL>  alter diskgroup datadg dismount force;Diskgroup altered.SQL> drop diskgroup datadg force including contents;Diskgroup dropped.##原有磁盘组名叫DATADG,现在需要改为DATA# su - grid$ asmcmd -pASMCMD [+] > lsdgState    Type    Rebal  Sector  Block       AU  Total_MB  Free_MB  Req_mir_free_MB  Usable_file_MB  Offline_disks  Voting_files  NameMOUNTED  EXTERN  N         512   4096  1048576   1024000  1023928                0         1023928              0             N  DATADG/   ASMCMD [+] > exit###删除后发现磁盘组确实不见了哈$ $ asmcmd -pASMCMD [+] > lsdgASMCMD [+] > exit$ $