文档解释
ORA-15003: diskgroup “string” already mounted in another lock name space
Cause: The diskgroup could not be mounted by the ASM instance because it was operating in a lockspace different than another existing ASM instance which had already mounted the diskgroup.
Action: Check the LOCK_NAME_SPACE initialization parameter value, or dismount the diskgroup from the other ASM instances.
Ora-15003: diskgroup “string” already mounted in another lock name space 错误主要指指定的磁盘组已经被挂载到另一个锁定的名称空间中。
官方解释
常见案例
正常处理方法及步骤
1.首先查看该磁盘组已被挂载到另一个锁定的名称空间中：SELECT NAME,LOCK_NAME FROM V$ASM_DISKGROUP;
2.如果检测到挂载，请先尝试拆卸它：ALTER DISKGROUP DISMOUNT lock_name;
3.如果拆卸失败，则使用以下语句以安全地从其他锁定名称空间中卸载磁盘组：ALTER DISKGROUP DISMOUNT FORCE lock_name;
4.最后，可以挂载该磁盘组到新的锁定名称空间：ALTER DISKGROUP [diskgroup] MOUNT DISKGROUP lock_name;
