Force DISMOUNT DISKGROUP Initiated ASMB Termination in Exadata

(Doc ID 2356030.1)

Last updated on APRIL 02, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later
Oracle Exadata Storage Server Software - Version 18.1.0.0.0 and later
Information in this document applies to any platform.

Symptoms

Force DISMOUNT DISKGROUP initiated ASMB termination.

Excerpt from alert log

ASMB: Instance termination initiated proactively due to inprogress Diskgroup force dismount

Changes

ASM instance is force dismounting a Diskgroup which include redo logs.

SQL> alter diskgroup FRA dismount force;

Cause

	Sign In with your My Oracle Support account
	Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms