Change ARCHIVELOG mode in RAC 12.1.0.2

[oracle@dens12adm01 V2Dump]$ srvctl status database -d DBM01

Instance DBM011 is running on node dens12adm01

Instance DBM012 is running on node dens12adm02

Instance DBM013 is running on node dens12adm03

Instance DBM014 is running on node dens12adm04

Instance DBM015 is running on node dens12adm05

Instance DBM016 is running on node dens12adm06

Instance DBM017 is running on node dens12adm07

Instance DBM018 is running on node dens12adm08

[oracle@dens12adm01 V2Dump]$ srvctl stop database -d DBM01

[oracle@dens12adm01 V2Dump]$ srvctl start database -d -o mount

PRKO-2388 : Command line option -db should be followed by a value.

[oracle@dens12adm01 V2Dump]$ srvctl start database -d DBM01 -o mount

[oracle@dens12adm01 V2Dump]$ sqlplus / as sysdba

SQL*Plus: Release 12.1.0.2.0 Production on Mon Mar 6 21:30:15 2017

Copyright (c) 1982, 2014, Oracle.  All rights reserved.

Connected to:

Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production

With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,

Advanced Analytics and Real Application Testing options

SQL> alter database noarchivelog;

Database altered.

SQL> archive log list;

Database log mode              No Archive Mode

Automatic archival             Disabled

Archive destination            USE_DB_RECOVERY_FILE_DEST

Oldest online log sequence     1032

Current log sequence           1041

SQL> exit

Disconnected from Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production

With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,

Advanced Analytics and Real Application Testing options

[oracle@dens12adm01 V2Dump]$ srvctl stop database -d DBM01

[oracle@dens12adm01 V2Dump]$ srvctl start database -d DBM01

[oracle@dens12adm01 V2Dump]$ srvctl status database -d DBM01

Instance DBM011 is running on node dens12adm01

Instance DBM012 is running on node dens12adm02

Instance DBM013 is running on node dens12adm03

Instance DBM014 is running on node dens12adm04

Instance DBM015 is running on node dens12adm05

Instance DBM016 is running on node dens12adm06

Instance DBM017 is running on node dens12adm07

Instance DBM018 is running on node dens12adm08

[oracle@dens12adm01 V2Dump]$