Enable ArchiveLog Mode on Oracle RAC database fails with ORA-00265

On a test RAC environment, while archiving is being enabled, “ALTER DATABASE ARCHIVELOG” command errored with ORA-00265: instance recovery required, cannot set ARCHIVELOG mode


Below are the steps performed to enable Archivelog mode on a 3-node RAC database environment.


test0115:TEST1011 $ srvctl status database -d TEST101
Instance TEST1011 is running on node test0115
Instance TEST1012 is running on node test0116
Instance TEST1013 is running on node test0117
test0115:TEST1011 $
test0115:TEST1011 $ srvctl stop database -d TEST101




test0115:TEST1011 $ srvctl status database -d TEST101
Instance TEST1011 is not running on node test0115
Instance TEST1012 is not running on node test0116
Instance TEST1013 is not running on node test0117
test0115:TEST1011 $




test0115:TEST1011 $ srvctl start database -d TEST101 -o mount
test0115:TEST1011 $  srvctl status database -d TEST101
Instance TEST1011 is running on node test0115
Instance TEST1012 is running on node test0116
Instance TEST1013 is running on node test0117
test0115:TEST1011 $




test0115:TEST1011 $ sqlplus / as sysdba


SQL*Plus: Release 11.2.0.4.0 Production on Sat May 9 14:13:54 2020


Copyright (c) 1982, 2013, Oracle.  All rights reserved.




Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 – 64bit Production
With the Partitioning, Real Application Clusters and Automatic Storage Management options


SQL> select name,open_mode from gv$database;


NAME      OPEN_MODE
——— ——————–
TEST101   MOUNTED
TEST101   MOUNTED
TEST101   MOUNTED


SQL>SQL> alter database archivelog;
alter database archivelog
*
ERROR at line 1:
ORA-00265: instance recovery required, cannot set ARCHIVELOG mode


Solution:
=========


1. Shutdown the database cleanly


SQL> shutdown immediate (on 3 RAC nodes)


2. Startup the database in mount stage


SQL> startup mount


3. Enable Archivelog mode


SQL> Alter database archivelog;


Database altered.


4. Open the database


SQL> Alter database open.


5. Verify archielog mode is enabled.


SQL> ARCHIVE LOG LIST;

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