Hi Tom,

I dont know below is fault or am i missing something in the architecture. Iam using orapwd file ,

-- When connecting from OS level password will be taken from this file
-- once i change / recreate the ORAPWD file its not working as expected.
-- Even if i use some different password also connecting which is not in orapwd file.


Test Case:

[dbs> ls -ltr orap*
-rw-r----- 1 grdbms grdbms 2560 Oct 4 16:21 orapwsb24Sb
-rw-r----- 1 grdbms grdbms 2560 Oct 12 12:24 orapwsb24Sc
-rw-r----- 1 grdbms grdbms 2560 Oct 18 11:28 orapwsb24Sa


[dbs> echo $ORACLE_SID
sb24Sc
[/dbs> sqlplus sys/change_on_install as sysdba


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options


SQL> exit



[celclnx1]/grdbms/64bit/app/oracle/product/c11204/dbs> sqlplus sys as sysdba


SQL*Plus: Release 11.2.0.4.0 Production on Thu Oct 20 19:05:19 2016


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


Enter password: >>>>>> Press Enter ( as a OS user of Oracle Binaries you can connect )


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options


SQL>


[celclnx1]/grdbms/64bit/app/oracle/product/c11204/dbs> mv orapwsb24Sc orapwsb24Sc_bkp
[celclnx1]/grdbms/64bit/app/oracle/product/c11204/dbs> orapwd FILE=orapwsb24Sc entries=5 password=welcome
[celclnx1]/grdbms/64bit/app/oracle/product/c11204/dbs> ls -ltr orap*
-rw-r----- 1 grdbms grdbms 2560 Oct 4 16:21 orapwsb24Sb
-rw-r----- 1 grdbms grdbms 2560 Oct 12 12:24 orapwsb24Sc_bkp
-rw-r----- 1 grdbms grdbms 2560 Oct 18 11:28 orapwsb24Sa
-rw-r----- 1 grdbms grdbms 2048 Oct 20 2016 orapwsb24Sc
[celclnx1]/grdbms/64bit/app/oracle/product/c11204/dbs>



[celclnx1]/grdbms/64bit/app/oracle/product/c11204/dbs> sqlplus sys/change_on_install as sysdba

QL*Plus: Release 11.2.0.4.0 Production on Thu Oct 20 19:08:06 2016
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, OLAP, Data Mining and Real Application Testing options


SQL>


[celclnx1]/grdbms/64bit/app/oracle/product/c11204/dbs> sqlplus sys/welcome as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Thu Oct 20 19:08:45 2016

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, OLAP, Data Mining and Real Application Testing options


SQL>


[celclnx1]/grdbms/64bit/app/oracle/product/c11204/dbs> sqlplus sys/wwwwwwwww as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Thu Oct 20 19:09:09 2016

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, OLAP, Data Mining and Real Application Testing options


[celclnx1]/grdbms/64bit/app/oracle/product/c11204/dbs> sqlplus sys/shekar as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Thu Oct 20 19:10:54 2016

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, OLAP, Data Mining and Real Application Testing options


SQL>




12c:
+++++


[celclnx1]/grdbms/64bit/app/oracle/product/c12102/dbs> echo $ORACLE_SID
sc12Sa
[celclnx1]/grdbms/64bit/app/oracle/product/c12102/dbs> sqlplus sys/shekar as sysdba ------------------- Just give any password it will connect

SQL*Plus: Release 12.1.0.2.0 Production on Thu Oct 20 19:15:54 2016


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


Connected to an idle instance.


SQL> startup
ORACLE instance started.


Total System Global Area 612368384 bytes
Fixed Size 2927336 bytes
Variable Size 306185496 bytes
Database Buffers 297795584 bytes
Redo Buffers 5459968 bytes
Database mounted.
Database opened.
SQL>





Thanks,