My Oracle Support Banner

EM13c ASM Target Showing Incorrect Disk Group State when FLEX ASM is used (Doc ID 2570037.1)

Last updated on JULY 13, 2021

Applies to:

Enterprise Manager for Oracle Database - Version 13.2.0.0.0 and later
Information in this document applies to any platform.

Symptoms

In a FLEX ASM environment, the diskgroups are incorrectly shown as DISMOUNTED. Also, the underlying metric is showing them down:

emctl getmetric agent "+ASM2_<HOSTNAME1>.<DOMAIN_NAME>",osm_instance,DiskGroup_Status 
Oracle Enterprise Manager Cloud Control 13c Release 2 
Copyright (c) 1996, 2016 Oracle Corporation.  All rights reserved. 
dg_name,dg_state 
<DB_NAME_1>,DISMOUNTED 
<DB_NAME_2>,DISMOUNTED 
<DB_NAME_3>,DISMOUNTED
<DB_NAME_4>,DISMOUNTED 

However, the diskgroups are working fine on the designated nodes in a FLEX ASM environment:

[user@<HOSTNAME1> ~]$ crsctl status resource -w "TYPE = ora.diskgroup.type" 
NAME=ora.<DB_NAME_1>.dg 
TYPE=ora.diskgroup.type 
TARGET=ONLINE               , ONLINE               , ONLINE               , 
OFFLINE 
STATE=ONLINE on <HOSTNAME1>, ONLINE on <HOSTNAME2>, ONLINE on <HOSTNAME3>, OFFLINE 

This is because the ASM is actually running on 3 out of the 4 nodes (which is a normal behavior in a FLEX ASM setup).

Changes

 

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!


In this Document
Symptoms
Changes
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.