Shulou(Shulou.com)06/01 Report--

Install customer core production database, disk group name is wrong, need to delete, re-create.

The steps to delete a disk group are as follows:

Su-gridsqlplus / as sysasmSQL > select group_number, name from vastly asmically diskgroupThe group number NAME- 1 DATADGSQL > col path for a40SQL > col name for a40SQL > set lines 120SQL > select path, name from v$asm_disk where group_number=1 PATH NAME---/ dev/rhdiskpower0 DATADG_0000/ Dev/rhdiskpower1 DATADG_0001/dev/rhdiskpower2 DATADG_0002/dev/rhdiskpower3 DATADG_0003/dev/rhdiskpower4 DATADG_0004SQL > SQL > alter diskgroup datadg dismount force Diskgroup altered.SQL > drop diskgroup datadg force including contents The original Diskgroup dropped.## disk group is called DATADG Now it needs to be changed to DATA# su-grid$ 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 1023928 0 N DATADG/ ASMCMD [+] > exit### deleted and found that the disk group is indeed missing. $asmcmd-pASMCMD [+] > lsdgASMCMD [+] > exit$ $

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