Steps To Create Physical Standby Using RMAN Duplicate

There are a couple of method available to create CDB physical standby database either using GUI or manual method, we can create the physical standby either using traditional method of copy all the required backup files, standby control file etc. into the target server and then create standby database with restore database etc. and the other method available is the duplicate method in which we don’t need to physically copy the database backup files etc. into the target database server.

Benefit Of Using Target Duplicate Method To Create Physical standby

The main benefit of using duplicate method to create standby database is that we don’t need to physically copy the database backup files, control files etc. into the target server which means that we don’t need to keep the space into the target server for those backup files, In duplicate method we can create the physical standby online while connecting to primary database and in a auxiliary mode to the standby instance.

Things To Remember In Physical Standby Of A CDB

(1) The database’s role will be defined at the root container level not at the PDB level

(2) Any sort of role transition operation either switchover or failover will execute at the CDB level

(3) MRP works or must be start at CDB level

(4) The Redo must be shipped at the root container level

(5) Be careful to enable or disable ENABLED_PDBS_ON_STANDBY initialization parameter in primary database before creating a physical standby

Types Of Standby Databases

(1) Physical Standby

(2) Logical Standby

(3) Snapshot Standby

In This post, we’ll discuss about how to create physical standby of CDB using duplicate method.

PRIMARY DATABSE	STANDBY DATABASE
ORAPRIM	ORADR

Checklist To Create Physical Standby Database

Task	Database
Enable Force Logging	Primary Database
Check Archive log Mode	Primary Database
Configure Primary To Send Redo	Primary Database
Set Initialization parameter to control redo transport	Primary Database
Set Initialization Parameter for role transition	Primary Database
Create require directory in standby database	Standby Database
Create manual pfile with DBNAME only and start standby in nomount mode	Standby Database
Create oracle net connection between primary and standby Database	Primary & Standby Both
Create password file manually in standby database	Standby Database
Connect rman with primary database and as an auxiliary to standby instance and make the required parameter set necessary to create standby database	Primary Database
Start MRP	Standby Database
Cleared all the log group	Standby Database
Drop & Recreate Temp File	Standby Database
Verify MRP is running fine	Standby Database

Step 1^st: Install oracle software only into the target server

Step 2nd: Make a tns entry for both the database in primary and standby database server and validate tnsping.

[oracle@oratest ~]$ tnsping ORAPRIM

TNS Ping Utility for Linux: Version 19.0.0.0.0 - Production on 20-DEC-2023 10:49:14

Used parameter files:

/u01/app/oracle/product/19.0.0/dbhome_1/network/admin/sqlnet.ora

Used TNSNAMES adapter to resolve the alias

Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = oratest)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = ORAPRIM) (UR=A)))

OK (10 msec)

[oracle@oratest ~]$ tnsping ORADR

TNS Ping Utility for Linux: Version 19.0.0.0.0 - Production on 20-DEC-2023 10:51:18

Used parameter files:

/u01/app/oracle/product/19.0.0/dbhome_1/network/admin/sqlnet.ora

Used TNSNAMES adapter to resolve the alias

Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = oradr)(PORT = 1522)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = ORADR) (UR=A)))

OK (20 msec)

NOTE: Same tnsping check from standby database server too.

Step 3^rd: Create pfile manually in standby database server using only db_name parameter and start the instance in nomount mode

[oracle@oradr dbs]$ cat initORAPRIM.ora

*.db_name=ORAPRIM

[oracle@oradr dbs]$ sqlplus "/as sysdba"

SQL*Plus: Release 19.0.0.0.0 - Production on Wed Dec 20 10:45:44 2023

Version 19.3.0.0.0

Connected to an idle instance.

SQL> startup nomount pfile='$ORACLE_HOME/dbs/initORAPRIM.ora'

ORACLE instance started.

Total System Global Area 268434280 bytes

Fixed Size 8895336 bytes

Variable Size 201326592 bytes

Database Buffers 50331648 bytes

Redo Buffers 7880704 bytes

Step 4th: On Standby Database host, create a password file in $ORACLE_HOME/dbs directory

NOTE: For Active duplicate we must create a password file for the auxiliary instance & establish oracle net connectivity. This is a temporary password file as it’s will be overwritten during the duplication operation.

[oracle@oradr dbs]$ orapwd file=orapwORAPRIM password=welcome#123

[oracle@oradr dbs]$ ls orapwORAPRIM

orapwORAPRIM

Step 5th: Check connectivity manually with primary database and as an auxiliary database to standby, create shell script for below rman command to run it in nohup mode.

[oracle@oratest dbs]$ rman

Recovery Manager: Release 19.0.0.0.0 - Production on Wed Dec 20 12:42:23 2023

Version 19.3.0.0.0

RMAN> connect target sys/sys123@oraprim;

connected to target database: ORAPRIM (DBID=179388109)

RMAN> connect auxiliary sys/sys123@oradr;

connected to auxiliary database (not started)

Body Of Shell Script

Rman target sys/sys123@oraprim;

Connect auxiliary sys/sys123@oradr;

Run {

Allocate channel c1 device type disk;

Allocate auxiliary channel ch1 device type disk;

Duplicate target database for standby from active database

Spfile

Parameter_value_convert=’ORAPRIM’,’ORADR’

Set db_unique_name=’ORADR’

Set db_file_name_convert=’/u01/oradata/ORAPRIM/’, ‘/u01/oradata/ORADR/’

Set log_file_name_convert=’/u01/oradata/ORAPRIM/’, ‘/u01/oradata/ORADR/’

Set control_files=’/u01/oradata/ORADR/control01.ctl’,’ ‘/u01/app/oracle/recovery/_area/ORADR/control02.ctl

Set fal_server=’ORAPRIM’

Set log_archive_config=’ DG_CONFIG=(ORAPRIM,ORADR)’

}

######### Shell Scripts End Here

Step 6th: Run rman shell script created in step 5 in nohup mode

[oracle@oratest scripts]$ nohup rman target sys/sys123@oraprim auxiliary sys/sys123@oradr cmdfile=/u01/scripts/duplicate.sh log=standby_build.log &

[oracle@oratest scripts]$ tail -10f standby_build.log ( Logfile Of Duplicate command)

Recovery Manager: Release 19.0.0.0.0 - Production on Wed Dec 20 13:34:15 2023

Version 19.3.0.0.0

connected to target database: ORAPRIM (DBID=179388109)

connected to auxiliary database: ORAPRIM (not mounted)

RMAN> #!/bin/bash

2> #set -xv

3> run {

4> allocate channel c1 device type disk;

5> allocate channel c2 device type disk;

6> allocate auxiliary channel ch1 device type disk;

7> duplicate target database for standby from active database

8> spfile

9> set db_name='ORAPRIM'

10> set db_unique_name='ORADR'

11> set db_file_name_convert='/u01/oradata/ORAPRIM/','/u01/oradata/ORADR/'

12> set log_file_name_convert='/u01/oradata/ORAPRIM/','/u01/oradata/ORADR/'

13> set control_files='/u01/oradata/ORADR/control01.ctl','/u01/app/oracle/recovery_area/ORADR/control02.ctl'

14> set fal_server='ORAPRIM'

15> set log_archive_config='DG_CONFIG=(ORAPRIM,ORADR)'

16> NOFILENAMECHECK DORECOVER;

17> }

using target database control file instead of recovery catalog

allocated channel: c1

channel c1: SID=292 device type=DISK

allocated channel: c2

channel c2: SID=276 device type=DISK

allocated channel: ch1

channel ch1: SID=181 device type=DISK

Starting Duplicate Db at 20-DEC-23

current log archived

contents of Memory Script:

{

backup as copy reuse

passwordfile auxiliary format '/u01/app/oracle/product/19.0.0/dbhome_1/dbs/orapwORADR' targetfile

'/u01/app/oracle/product/19.0.0/dbhome_1/dbs/spfileORAPRIM.ora' auxiliary format

'/u01/app/oracle/product/19.0.0/dbhome_1/dbs/spfileORADR.ora' ;

sql clone "alter system set spfile= ''/u01/app/oracle/product/19.0.0/dbhome_1/dbs/spfileORADR.ora''";

}

executing Memory Script

Starting backup at 20-DEC-23

Finished backup at 20-DEC-23

Starting restore at 20-DEC-23

channel ch1: starting datafile backup set restore

channel ch1: using network backup set from service oraprim

channel ch1: restoring SPFILE

output file name=/u01/app/oracle/product/19.0.0/dbhome_1/dbs/spfileORADR.ora

channel ch1: restore complete, elapsed time: 00:00:01

Finished restore at 20-DEC-23

sql statement: alter system set spfile= ''/u01/app/oracle/product/19.0.0/dbhome_1/dbs/spfileORADR.ora''

contents of Memory Script:

{

sql clone "alter system set db_name =

''ORAPRIM'' comment=

'''' scope=spfile";

sql clone "alter system set db_unique_name =

''ORADR'' comment=

'''' scope=spfile";

sql clone "alter system set db_file_name_convert =

''/u01/oradata/ORAPRIM/'', ''/u01/oradata/ORADR/'' comment=

'''' scope=spfile";

sql clone "alter system set log_file_name_convert =

''/u01/oradata/ORAPRIM/'', ''/u01/oradata/ORADR/'' comment=

'''' scope=spfile";

sql clone "alter system set control_files =

''/u01/oradata/ORADR/control01.ctl'', ''/u01/app/oracle/recovery_area/ORADR/control02.ctl'' comment=

'''' scope=spfile";

sql clone "alter system set fal_server =

''ORAPRIM'' comment=

'''' scope=spfile";

sql clone "alter system set log_archive_config =

''DG_CONFIG=(ORAPRIM,ORADR)'' comment=

'''' scope=spfile";

shutdown clone immediate;

startup clone nomount;

}

executing Memory Script

sql statement: alter system set db_name = ''ORAPRIM'' comment= '''' scope=spfile

sql statement: alter system set db_unique_name = ''ORADR'' comment= '''' scope=spfile

sql statement: alter system set db_file_name_convert = ''/u01/oradata/ORAPRIM/'', ''/u01/oradata/ORADR/'' comment= '''' scope=spfile

sql statement: alter system set log_file_name_convert = ''/u01/oradata/ORAPRIM/'', ''/u01/oradata/ORADR/'' comment= '''' scope=spfile

sql statement: alter system set control_files = ''/u01/oradata/ORADR/control01.ctl'', ''/u01/app/oracle/recovery_area/ORADR/control02.ctl'' comment= '''' scope=spfile

sql statement: alter system set fal_server = ''ORAPRIM'' comment= '''' scope=spfile

sql statement: alter system set log_archive_config = ''DG_CONFIG=(ORAPRIM,ORADR)'' comment= '''' scope=spfile

Oracle instance shut down

connected to auxiliary database (not started)

Oracle instance started

Total System Global Area 1728050736 bytes

Fixed Size 9135664 bytes

Variable Size 402653184 bytes

Database Buffers 1308622848 bytes

Redo Buffers 7639040 bytes

allocated channel: ch1

channel ch1: SID=21 device type=DISK

contents of Memory Script:

{

restore clone from service 'oraprim' standby controlfile;

}

executing Memory Script

Starting restore at 20-DEC-23

channel ch1: starting datafile backup set restore

channel ch1: using network backup set from service oraprim

channel ch1: restoring control file

channel ch1: restore complete, elapsed time: 00:00:04

output file name=/u01/oradata/ORADR/control01.ctl

output file name=/u01/app/oracle/recovery_area/ORADR/control02.ctl

Finished restore at 20-DEC-23

contents of Memory Script:

{

sql clone 'alter database mount standby database';

}

executing Memory Script

sql statement: alter database mount standby database

contents of Memory Script:

{

set newname for tempfile 1 to

"/u01/oradata/ORADR/temp01.dbf";

set newname for tempfile 2 to

"/u01/oradata/ORADR/pdbseed/temp012023-12-15_15-14-11-697-PM.dbf";

set newname for tempfile 3 to

"/u01/oradata/ORADR/PDB1/temp01.dbf";

switch clone tempfile all;

set newname for datafile 1 to

"/u01/oradata/ORADR/system01.dbf";

set newname for datafile 3 to

"/u01/oradata/ORADR/sysaux01.dbf";

set newname for datafile 4 to

"/u01/oradata/ORADR/undotbs01.dbf";

set newname for datafile 5 to

"/u01/oradata/ORADR/pdbseed/system01.dbf";

set newname for datafile 6 to

"/u01/oradata/ORADR/pdbseed/sysaux01.dbf";

set newname for datafile 7 to

"/u01/oradata/ORADR/users01.dbf";

set newname for datafile 8 to

"/u01/oradata/ORADR/pdbseed/undotbs01.dbf";

set newname for datafile 9 to

"/u01/oradata/ORADR/PDB1/system01.dbf";

set newname for datafile 10 to

"/u01/oradata/ORADR/PDB1/sysaux01.dbf";

set newname for datafile 11 to

"/u01/oradata/ORADR/PDB1/undotbs01.dbf";

set newname for datafile 12 to

"/u01/oradata/ORADR/PDB1/users01.dbf";

restore

from nonsparse from service

'oraprim' clone database

;

sql 'alter system archive log current';

}

executing Memory Script

executing command: SET NEWNAME

renamed tempfile 1 to /u01/oradata/ORADR/temp01.dbf in control file

renamed tempfile 2 to /u01/oradata/ORADR/pdbseed/temp012023-12-15_15-14-11-697-PM.dbf in control file

renamed tempfile 3 to /u01/oradata/ORADR/PDB1/temp01.dbf in control file

executing command: SET NEWNAME

Starting restore at 20-DEC-23

channel ch1: starting datafile backup set restore

channel ch1: using network backup set from service oraprim

channel ch1: specifying datafile(s) to restore from backup set

channel ch1: restoring datafile 00001 to /u01/oradata/ORADR/system01.dbf

channel ch1: restore complete, elapsed time: 00:00:25

channel ch1: starting datafile backup set restore

channel ch1: using network backup set from service oraprim

channel ch1: specifying datafile(s) to restore from backup set

channel ch1: restoring datafile 00003 to /u01/oradata/ORADR/sysaux01.dbf

channel ch1: restore complete, elapsed time: 00:00:26

channel ch1: starting datafile backup set restore

channel ch1: using network backup set from service oraprim

channel ch1: specifying datafile(s) to restore from backup set

channel ch1: restoring datafile 00004 to /u01/oradata/ORADR/undotbs01.dbf

channel ch1: restore complete, elapsed time: 00:00:15

channel ch1: starting datafile backup set restore

channel ch1: using network backup set from service oraprim

channel ch1: specifying datafile(s) to restore from backup set

channel ch1: restoring datafile 00005 to /u01/oradata/ORADR/pdbseed/system01.dbf

channel ch1: restore complete, elapsed time: 00:00:16

channel ch1: starting datafile backup set restore

channel ch1: using network backup set from service oraprim

channel ch1: specifying datafile(s) to restore from backup set

channel ch1: restoring datafile 00006 to /u01/oradata/ORADR/pdbseed/sysaux01.dbf

channel ch1: restore complete, elapsed time: 00:00:16

channel ch1: starting datafile backup set restore

channel ch1: using network backup set from service oraprim

channel ch1: specifying datafile(s) to restore from backup set

channel ch1: restoring datafile 00007 to /u01/oradata/ORADR/users01.dbf

channel ch1: restore complete, elapsed time: 00:00:01

channel ch1: starting datafile backup set restore

channel ch1: using network backup set from service oraprim

channel ch1: specifying datafile(s) to restore from backup set

channel ch1: restoring datafile 00008 to /u01/oradata/ORADR/pdbseed/undotbs01.dbf

channel ch1: restore complete, elapsed time: 00:00:04

channel ch1: starting datafile backup set restore

channel ch1: using network backup set from service oraprim

channel ch1: specifying datafile(s) to restore from backup set

channel ch1: restoring datafile 00009 to /u01/oradata/ORADR/PDB1/system01.dbf

channel ch1: restore complete, elapsed time: 00:00:15

channel ch1: starting datafile backup set restore

channel ch1: using network backup set from service oraprim

channel ch1: specifying datafile(s) to restore from backup set

channel ch1: restoring datafile 00010 to /u01/oradata/ORADR/PDB1/sysaux01.dbf

channel ch1: restore complete, elapsed time: 00:00:16

channel ch1: starting datafile backup set restore

channel ch1: using network backup set from service oraprim

channel ch1: specifying datafile(s) to restore from backup set

channel ch1: restoring datafile 00011 to /u01/oradata/ORADR/PDB1/undotbs01.dbf

channel ch1: restore complete, elapsed time: 00:00:03

channel ch1: starting datafile backup set restore

channel ch1: using network backup set from service oraprim

channel ch1: specifying datafile(s) to restore from backup set

channel ch1: restoring datafile 00012 to /u01/oradata/ORADR/PDB1/users01.dbf

channel ch1: restore complete, elapsed time: 00:00:01

Finished restore at 20-DEC-23

sql statement: alter system archive log current

current log archived

contents of Memory Script:

{

restore clone force from service 'oraprim'

archivelog from scn 2616534;

switch clone datafile all;

}

executing Memory Script

Starting restore at 20-DEC-23

channel ch1: starting archived log restore to default destination

channel ch1: using network backup set from service oraprim

channel ch1: restoring archived log

archived log thread=1 sequence=6

channel ch1: restore complete, elapsed time: 00:00:01

channel ch1: starting archived log restore to default destination

channel ch1: using network backup set from service oraprim

channel ch1: restoring archived log

archived log thread=1 sequence=7

channel ch1: restore complete, elapsed time: 00:00:01

Finished restore at 20-DEC-23

datafile 1 switched to datafile copy

input datafile copy RECID=5 STAMP=1156081987 file name=/u01/oradata/ORADR/system01.dbf

datafile 3 switched to datafile copy

input datafile copy RECID=6 STAMP=1156081987 file name=/u01/oradata/ORADR/sysaux01.dbf

datafile 4 switched to datafile copy

input datafile copy RECID=7 STAMP=1156081988 file name=/u01/oradata/ORADR/undotbs01.dbf

datafile 5 switched to datafile copy

input datafile copy RECID=8 STAMP=1156081988 file name=/u01/oradata/ORADR/pdbseed/system01.dbf

datafile 6 switched to datafile copy

input datafile copy RECID=9 STAMP=1156081988 file name=/u01/oradata/ORADR/pdbseed/sysaux01.dbf

datafile 7 switched to datafile copy

input datafile copy RECID=10 STAMP=1156081988 file name=/u01/oradata/ORADR/users01.dbf

datafile 8 switched to datafile copy

input datafile copy RECID=11 STAMP=1156081988 file name=/u01/oradata/ORADR/pdbseed/undotbs01.dbf

datafile 9 switched to datafile copy

input datafile copy RECID=12 STAMP=1156081988 file name=/u01/oradata/ORADR/PDB1/system01.dbf

datafile 10 switched to datafile copy

input datafile copy RECID=13 STAMP=1156081988 file name=/u01/oradata/ORADR/PDB1/sysaux01.dbf

datafile 11 switched to datafile copy

input datafile copy RECID=14 STAMP=1156081988 file name=/u01/oradata/ORADR/PDB1/undotbs01.dbf

datafile 12 switched to datafile copy

input datafile copy RECID=15 STAMP=1156081988 file name=/u01/oradata/ORADR/PDB1/users01.dbf

contents of Memory Script:

{

set until scn 2617057;

recover

standby

clone database

delete archivelog

;

}

executing Memory Script

executing command: SET until clause

Starting recover at 20-DEC-23

starting media recovery

archived log for thread 1 with sequence 6 is already on disk as file /u01/app/oracle/recovery_area/ORADR/archivelog/2023_12_20/o1_mf_1_6_lr5939bl_.arc

archived log for thread 1 with sequence 7 is already on disk as file /u01/app/oracle/recovery_area/ORADR/archivelog/2023_12_20/o1_mf_1_7_lr593bnc_.arc

archived log file name=/u01/app/oracle/recovery_area/ORADR/archivelog/2023_12_20/o1_mf_1_6_lr5939bl_.arc thread=1 sequence=6

archived log file name=/u01/app/oracle/recovery_area/ORADR/archivelog/2023_12_20/o1_mf_1_7_lr593bnc_.arc thread=1 sequence=7

media recovery complete, elapsed time: 00:00:02

Finished recover at 20-DEC-23

contents of Memory Script:

{

delete clone force archivelog all;

}

executing Memory Script

deleted archived log

archived log file name=/u01/app/oracle/recovery_area/ORADR/archivelog/2023_12_20/o1_mf_1_6_lr5939bl_.arc RECID=1 STAMP=1156081985

deleted archived log

archived log file name=/u01/app/oracle/recovery_area/ORADR/archivelog/2023_12_20/o1_mf_1_7_lr593bnc_.arc RECID=2 STAMP=1156081986

Deleted 2 objects

Finished Duplicate Db at 20-DEC-23

released channel: c1

released channel: ch1

Recovery Manager complete.

Step 7th: Clear log group created on standby database after standby creation

SQL> alter database clear logfile group 1;

Database altered.

SQL> alter database clear logfile group 2;

Database altered.

SQL> alter database clear logfile group 3;

Database altered.

SQL> alter database clear logfile group 4;

Database altered.

SQL> alter database clear logfile group 5;

Database altered.

SQL> alter database clear logfile group 6;

Database altered.

SQL> alter database clear logfile group 7;

Database altered.

Step 8th: Drop & Recreate Temp Files In Standby Database

NOTE: Drop & re-create tempfile otherwise we’ll get error highlighted in a box everytime whenever Standby will restart.

CON_ID|TABLESPACE_NAME |FILE_NAME |BYTES/1024/1024

----------|------------------------------|----------------------------------------------------------------------------------------------------|---------------

3|TEMP |/u01/app/oracle/oradata/IND_DR/0D40A9D4D52D26BDE0630901A8C0E8F7/datafile/o1_mf_temp_lrjt24w7_.tmp | 36

1|TEMP |/u01/app/oracle/oradata/IND_DR/datafile/o1_mf_temp_lrjsz8bj_.tmp | 20

SQL> alter database open read only;

Database altered.

SQL> alter tablespace TEMP add tempfile '/u01/app/oracle/oradata/IND_DR/datafile/TEMP01.dbf' size 50M;

Tablespace altered.

SQL> alter tablespace TEMP drop tempfile '/u01/app/oracle/oradata/IND_DR/datafile/o1_mf_temp_lrjsz8bj_.tmp';

Tablespace altered.

SQL> alter session set container=PDB1;

Session altered.

SQL> show con_name

CON_NAME

------------------------------

PDB1

SQL> alter tablespace TEMP add tempfile '/u01/app/oracle/oradata/IND_DR/datafile/PDB1_TEMP01' size 20M;

Tablespace altered.

SQL> alter tablespace TEMP drop tempfile '/u01/app/oracle/oradata/IND_DR/0D40A9D4D52D26BDE0630901A8C0E8F7/datafile/o1_mf_temp_lrjt24w7_.tmp';

Tablespace altered.

CON_ID|TABLESPACE_N|FILE_NAME |BYTES/1024/1024

----------|------------|---------------------------------------------------|---------------

3|TEMP |/u01/app/oracle/oradata/IND_DR/datafile/PDB1_TEMP01| 20

1|TEMP |/u01/app/oracle/oradata/IND_DR/datafile/TEMP01.dbf | 50

STEP 9th: Start MRP Process

SQL> alter database recover managed standby database disconnect from session;

Database altered.

STEP 10th: Verify if MRP is running fine

NOTE A. Since v$managed_standby is deprecated as of oracle 12c , So use Use

v$dataguard_process

NOTE B. Recovery logmerger role shows that redo is being applied at the standby

Standby Database Output

SQL>select name,role,action,group#,thread#,sequence#,BLOCK#,BLOCK_COUNT,DELAY_MINS from v$dataguard_process;

-----|------------------------|------------|----------|----------|----------|----------|-----------|----------

LGWR |log writer |IDLE | 0| 0| 0| 0| 0| 0

TMON |redo transport monitor |IDLE | 0| 0| 0| 0| 0| 0

TT00 |gap manager |IDLE | 0| 0| 0| 0| 0| 0

TT01 |redo transport timer |IDLE | 0| 0| 0| 0| 0| 0

ARC0 |archive local |IDLE | 0| 0| 0| 0| 0| 0

ARC1 |archive redo |IDLE | 0| 0| 0| 0| 0| 0

ARC2 |archive redo |IDLE | 0| 0| 0| 0| 0| 0

ARC3 |archive redo |IDLE | 0| 0| 0| 0| 0| 0

rfs |RFS ping |IDLE | 0| 1| 5| 0| 0| 0

rfs |RFS async |IDLE | 4| 1| 5| 10087| 1| 0

MRP0 |managed recovery |IDLE | 0| 0| 0| 0| 0| 0

PR00 |recovery logmerger |APPLYING_LOG| 0| 1| 5| 10087| 409600| 0

PR01 |recovery apply slave |IDLE | 0| 0| 0| 0| 0| 0

PR02 |recovery apply slave |IDLE | 0| 0| 0| 0| 0| 0

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Steps To Create Physical Standby Using RMAN Duplicate

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