ORA-15001: diskgroup “xx” does not exist or is not mounted

    1. RMAN-00571: ===========================================================
    2. RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
    3. RMAN-00571: ===========================================================
    4. RMAN-03002: failure of Duplicate Db command at 04/30/2019 17:23:03
    5. RMAN-05501: aborting duplication of target database
    6. RMAN-06136: ORACLE error from auxiliary database: ORA-00200: control file could not be created
    7. ORA-00202: control file: '+DG_DATA01'
    8. ORA-17502: ksfdcre:4 Failed to create file +DG_DATA01
    9. ORA-15001: diskgroup "DG_DATA01" does not exist or is not mounted
    10. ORA-15040: diskgroup is incomplete

    asmcmd 查看磁盘状态发现磁盘是正常的

    1. [grid@rac1 ~]$ asmcmd lsdg 
    2. State    Type    Rebal  Sector  Logical_Sector  Block       AU  Total_MB  Free_MB  Req_mir_free_MB  Usable_file_MB  Offline_disks  Voting_files  Name
    3. MOUNTED  EXTERN  N         512             512   4096  4194304     61440    31684                0           31684              0             Y  DATA/

    问题原因/u01/app/oracle/product/19.3.0.0/dbhome_1/bin/oracle 文件权限不足或者权限组不正确
    解决办法

    1. cd  /u01/app/oracle/product/19.3.0.0/dbhome_1/bin/ 
    2. chown oracle:asmadmin oracle
    3. chmod  777 oracle
    4. chmod +x oracle