ORA-15027: active use of diskgroup “string” precludes its dismount

文档解释

ORA-15027: active use of diskgroup “string” precludes its dismount

Cause: An ALTER DISKGROUP … DISMOUNT command specified a diskgroup which had clients with open files in the diskgroup. Diskgroups cannot be dismounted until all open files in the diskgroup are closed.

Action: Stop all clients that are using this diskgroup and retry the ALTER DISKGROUP … DISMOUNT command. Query the V$ASM_CLIENT fixed view in an ASM instance or use ASMCMD LSOF to list active clients.

ORA-15027:当试图卸载某个存储组(Diskgroup)时引发的错误,ORA-15027的官方解释是:active use of diskgroup “string” precludes its dismount,提示存储组正在使用中,无法卸载。

常见案例

正常处理方法及步骤

1.首先,可以尝试更改状态将存储组挂起以释放存储组。

SQL> ALTER DISKGROUP MOUNT;

SQL> ALTER DISKGROUP DISMOUNT;

2.如果挂起失败,则可以尝试使用ALTER DISKGROUP ONLINE/OFFLINE命令来解除该存储组对应的实例。

SQL> ALTER DISKGROUP OFFLINE INSTANCE;

3.最后,在这些步骤之后,应该可以成功地使用EXPORT等命令来卸载 Diskgroup。

SQL> EXPORT DISKGROUP CONTENTS=ALL;

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