通过dd创建asm disk

问题0：raw /dev/raw/raw10 /dev/loop11 后没有raw10生成

重启后有了

使用losetup实现linux普通文件做asm disk

如何创建ASM磁盘

ASM管理

问题1：ORA-15260: permission denied on ASM disk group

解决方案：

sqlplus / as sysasm

问题2：ORA-15031: disk specification ‘/dev/raw/raw10’ matches no disks

[email protected]+ASM> create diskgroup xff external redundancy disk '/dev/raw/raw10';
create diskgroup xff external redundancy disk '/dev/raw/raw10'
*
ERROR at line 1:
ORA-15018: diskgroup cannot be created
ORA-15031: disk specification '/dev/raw/raw10' matches no disks
ORA-15025: could not open disk "/dev/raw/raw10"
ORA-27041: unable to open file
Linux-x86_64 Error: 13: Permission denied
Additional information: 42
Additional information: 1241279430721
Additional information: 68719476736

解决方案：

chmod 660 /dev/raw/raw1
chown oracle:dba /dev/raw/raw1

问题3：ORA-15031: disk specification ‘/dev/raw/raw10’ matches no disks

[email protected]+ASM> create diskgroup xff external redundancy disk '/dev/raw/raw10';
create diskgroup xff external redundancy disk '/dev/raw/raw10'
*
ERROR at line 1:
ORA-15018: diskgroup cannot be created
ORA-15031: disk specification '/dev/raw/raw10' matches no disks
ORA-15014: path '/dev/raw/raw10' is not in the discovery set

解决方案：

alter system set asm_diskstring='/dev/raw/*';