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11gR2 ASM Fails to Start With "ORA-12547: TNS:lost contact" and ORA-12649 due to Incorrect Network Security Setting (Doc ID 1505025.1)

Last updated on APRIL 19, 2022

Applies to:

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


11gR2 ASM fails to start while GI is restarting:

CRS-2672: Attempting to start 'ora.asm' on 'racnode1'
ORA-12547: TNS:lost contact
CRS-5017: The resource action "ora.asm start" encountered the following error:
ORA-12547: TNS:lost contactCRS-2674: Start of 'ora.asm' on 'racnode1' failed
CRS-2679: Attempting to clean 'ora.asm' on 'racnode1'
ORA-12547: TNS:lost contact
CRS-2681: Clean of 'ora.asm' on 'racnode1' succeeded
CRS-4000: Command Start failed, or completed with errors.


$ export ORACLE_SID=<+ASMn>
$ $ORACLE_HOME/bin/sqlplus / as sysasm

SQL*Plus: Release Production on Fri Nov 9 16:38:52 2012

Copyright (c) 1982, 2010, Oracle.  All rights reserved.

ORA-12547: TNS:lost contact


Fatal NI connect error 12547, connecting to:

       TNS for Linux: Version - Production
       Oracle Bequeath NT Protocol Adapter for Linux: Version - Production
 Time: 09-NOV-2012 17:36:36
 Tracing not turned on.
 Tns error struct:
   ns main err code: 12547

TNS-12547: TNS:lost contact
   ns secondary err code: 12560
   nt main err code: 517

TNS-00517: Lost contact
   nt secondary err code: 32
   nt OS err code: 0


*** 2012-11-09 18:12:51.661
opiino: Attach failed due to ORA-12649




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