ORA-15077: Could Not Locate ASM Instance Serving A Required Diskgroup [ID 744479.1]

Modified:29-Jun-2012 Type:PROBLEM Status:PUBLISHED Priority:3

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In this Document

Symptoms

Cause

Solution

Applies to:

Oracle Server - Enterprise Edition - Version 10.1.0.2 to 11.1.0.8 [Release 10.1 to 11.1]

Information in this document applies to any platform.

***Checked for relevance on 21-Jan-2011***

Oracle Server Enterprise Edition - Version: 10.1.0.2 to 11.1.0.8

Symptoms

Database Instance was unable to connect to the ASM instance (+ASM2) due to the next errors:

SQL> connect / as sysdba

Connected to an idle instance.

SQL> startup

ORA-01078: failure in processing system parameters

ORA-01565: error in identifying file '+ABANKSDATA/NODOPROD/spfileNODOPROD.ora'

ORA-17503: ksfdopn:2 Failed to open file +ABANKSDATA/NODOPROD/spfileNODOPROD.ora

ORA-15077: could not locate ASM instance serving a required diskgroup

Cause

Diskgroup were not mounted on the second ASM instance:

GROUP_NUMBER NAME STATE TYPE TOTAL_MB FREE_MB

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

0 DATA DISMOUNTED 0 0

0 FRA DISMOUNTED 0 0

Diskgroups need to be mounted on all the ASM instances across the RAC configuration.

Solution

Manually mount the diskgroups on the +ASM2 instance:

export ORACLE_SID=+ASM2

sqlplus "/as sysdba"

SQL> alter diskgroup DATA mount;

SQL> alter diskgroup FRA mount;