Linux 7.6 x64
GI 19.13 & Oracle 19.13 补丁都打了

[DBT-30012] Dropping disk group BACK failed.
ORA-15032: not all alterations performed
ORA-15335: ASM metadata corruption detected in disk group 'BACK'
ORA-15130: diskgroup "BACK" is being dismounted
ORA-15066: offlining disk "BACK1" in group "BACK" may result in a data loss
ORA-15196: invalid ASM block header [kfc.c:30644] [endian_kfbh] [3] [11264] [0 != 1]

SQL> alter diskgroup back mount force;
alter diskgroup back mount force
*
ERROR at line 1:
ORA-15032: not all alterations performed
ORA-15335: ASM metadata corruption detected in disk group 'BACK'
ORA-15130: diskgroup "BACK" is being dismounted
ORA-15066: offlining disk "BACK1" in group "BACK" may result in a data loss
ORA-15196: invalid ASM block header [kfc.c:30644] [endian_kfbh] [3] [11264] [0 != 1]
ORA-15196: invalid ASM block header [kfc.c:30644] [endian_kfbh] [3] [11264] [0 != 1]