11gR2 (11.2.0.1) ORA-15027: active use of diskgroup precludes its dismount (With no database clients connected) (Doc ID 1082876.1)

Last updated on JUNE 27, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.1.0 to 11.2.0.2.0 [Release 11.2]
Information in this document applies to any platform.
Checked relevance on 19-Aug-2014

Symptoms

1) Unable to drop diskgroup due to the next error:

SQL> drop diskgroup DATA including contents;

drop diskgroup DATA including contents

*

ERROR at line 1:

ORA-15039: diskgroup not dropped

ORA-15027: active use of diskgroup "DATA" precludes its dismount


2) You verified the output from v$asm_client and there is not database client associated with the affected diskgroup: 

SQL> select * from v$asm_client;

no rows selected







Cause

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