ASM Instance Shuts Down Cleanly On Its Own (Doc ID 277274.1)

Last updated on AUGUST 10, 2011

Applies to:

Oracle Server - Enterprise Edition - Version: 10.1.0.2 to 10.1.0.5 - Release: 10.1 to 10.1
Information in this document applies to any platform.

Symptoms

In a 10g RAC/CRS environment, the ASM Instance may terminate cleanly, with the only evidence being the shutdown information given in the alert log. For example, the following series of events may be evidenced in the alert log of the ASM instance (i.e. alert_+ASM1.log), even though no user has shutdown the ASM instance:

====================
Mon Jun 21 21:25:39 2004
Shutting down instance: further logons disabled
Mon Jun 21 21:25:39 2004
Shutting down instance (immediate)
License high water mark = 4
Mon Jun 21 21:25:39 2004
SQL> ALTER DISKGROUP ALL DISMOUNT
NOTE: cache dismounting group 1/0x7D5B6B3B (DKGRP1)
Mon Jun 21 21:25:39 2004
====================

As a side-effect of the ASM instance being shutdown, any database instances on that node will also be shutdown. The alert log from the database instance(s) might have messages such as the following:

====================
Mon Jun 21 21:23:16 2004
Shutting down instance: further logons disabled
Mon Jun 21 21:24:29 2004
Stopping background process QMNC
Mon Jun 21 21:24:29 2004
Stopping background process CJQ0
Mon Jun 21 21:24:32 2004
Stopping background process MMNL
Mon Jun 21 21:24:35 2004
Stopping background process MMON
Mon Jun 21 21:24:51 2004
Shutting down instance (transactional local)
Local transactions complete. Performing immediate shutdown
====================

Or, an error may be signalled in the database instance alert log such as:

=====================
ORA-15064: communication failure with ASM instance
ORA-01089: immediate shutdown in progress - no operations are permitted
Mon Jun 21 19:56:37 2004
ASMB: terminating instance due to error 15064
=====================

Changes

Happens in a RAC environment running Oracle10g CRS (Cluster Ready Services)

Cause

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