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ORA-15020: discovered duplicate ASM disk “string” ORACLE 报错 故障修复 远程处理

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ORA-15020: discovered duplicate ASM disk “string” ORACLE 报错 故障修复 远程处理

文档解释

ORA-15020: discovered duplicate ASM disk “string”

Cause: The discovery encountered two disks claiming to be the same named ASM disk.

Action: Check that the ASM_DISKSTRING parameter specifies only a single path for each disk.

ORA-15020错误是ASM数据库管理系统(Database)发现重复卷时,表示磁盘”string”重复。

官方解释

Cause: ASM found a duplicate disk “string” in the disk group. Two disks with the same system generated name were discovered.

Action: Rename one of the disks and make sure they have different names.

常见案例

1. 用户在磁盘组A中添加了一块新磁盘,而这块磁盘的系统名称已经存在于磁盘组A中,因此ASM发出ORA-15020的错误消息;

2.在ASM磁盘组上发现磁盘名重复;

3.由于磁盘故障,ASM磁盘组中磁盘某些未能成功重新命名。

此时发出ORA-15020错误信息,指出有两块磁盘名字重复了。

正常处理方法及步骤

1.使用ASMCMD PDISK确认有哪些重复项;

2. 使用ASMCMD PDISK(RENAME)命令重命名重复的磁盘;

3. 使用ASMCMD VERIFY进行验证,确认重命名操作成功;

4.使用SQL查询来检查ASM磁盘上的临时文件,确保没有重复的文件;

5.重启ASM服务.

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ORA-15020: discovered duplicate ASM disk “string” ORACLE 报错 故障修复 远程处理

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