Monday, 25 January 2010

How to create duplicate database from a primary when the FULL backup happens out of standby

Scenario

1. You want to create a DUPLICATE database to perform PITR out of Primary PRODUCTION database. Duplicate/auxiliary instance is created in a different host.

2. FULL/DYNAMIC backup of primary production database goes out of STANDBY

Assumption

1. Backup of Production databae controlfile exists

Facts

In this scenario, I used the following command to perform PITR recovery in RETEK database.
1. Production database
a. op01rtdb01/2
b. primnode1/primnode2
2. Standby database
a. Op99rtdb01
b. standbynode1
c. Policy : rdc_oradb_qa
d. Netbackup master server : nbmstrnode1

Note : FULL database backup is performed out of op99rtdb01

3. Duplicate/Auxiliary database
a. op01drdb01
b. auxnode1

Commands

PFA the general commands for this sort PITR. This document would also cover the directory creation and other steps.
Otherwise, the key steps are

1. Login to auxnode1 as “oracle” unix user

2. . oraenv (type op01drdb01)

3. Startup nomount

rman

connect target SYS/@op01rtdb01 Note : I am connecting only to primary production database, though the FULL backup happens out of OP99RTDB01.

connect catalog rman10g/@op01emdb02

CONNECT AUXILIARY /

run
{
allocate channel t1 type 'SBT_TAPE' parms 'ENV=(NB_ORA_CLIENT=standbynode1,NB_ORA_CLASS=rdc_oradb_qa,NB_ORA_SERV=nbmstrnode1)';
allocate auxiliary channel t2 type 'SBT_TAPE' parms 'ENV=(NB_ORA_CLIENT=standbynode1,NB_ORA_CLASS=rdc_oradb_qa,NB_ORA_SERV=nbmstrnode1)';
allocate auxiliary channel t3 type 'SBT_TAPE' parms 'ENV=(NB_ORA_CLIENT=standbynode1,NB_ORA_CLASS=rdc_oradb_qa,NB_ORA_SERV=nbmstrnode1)';
allocate auxiliary channel t4 type 'SBT_TAPE' parms 'ENV=(NB_ORA_CLIENT=standbynode1,NB_ORA_CLASS=rdc_oradb_qa,NB_ORA_SERV=nbmstrnode1)';
set until time "to_date('2009-10-09 02:00:00','YYYY-MM-DD hh24:mi:ss')";
DUPLICATE TARGET DATABASE TO OP01DRDB
db_file_name_convert=('/u01/app/oracle/admin/oralink/op01rtdb/','/u01/app/oracle/admin/oralink/op01drdb/')
skip tablespace ARIDAT03,RTKIDX06,RTKIDXEX01,RTKIDXEX03,OUTLN01,RTKIDX02,RTKDAT02,ARIDAT02,RTKIDX08,RTKDATEX03,RTKDAT03,RTKIDX04,RTKIDX01,RTKDAT04,PMIDAT01,TOOLS01,ARIIDX02,
ARIIDX03,AUDDAT01,ARIDAT01,RTKDAT01,RTKDAT06,RTKIDX03,RTKIDXEX02,RTKIDX07,ARIIDX01,RTKIDX05,RTKDAT07,USERS01,RTKDAT05,RTKDATEX02,RTKDAT08
LOGFILE
GROUP 1 ('/u01/app/oracle/admin/oralink/op01drdb/op01drdb01_0101a.rdo','/u01/app/oracle/admin/oralink/op01drdb/op01drdb01_0101b.rdo') SIZE 511M,
GROUP 2 ('/u01/app/oracle/admin/oralink/op01drdb/op01drdb01_0201a.rdo','/u01/app/oracle/admin/oralink/op01drdb/op01drdb01_0201b.rdo') SIZE 511M,
GROUP 3 ('/u01/app/oracle/admin/oralink/op01drdb/op01drdb01_0301a.rdo','/u01/app/oracle/admin/oralink/op01drdb/op01drdb01_0301b.rdo') SIZE 511M REUSE;
}

Note : To get the value of the parameter marked in RED, you need to go to op99rtdb01/standbynode1:/usr/openv/netbackup/logs/user_ops/dbext/logs
Grep for rdc_oradb_qa and CAT any of the file.

standbynode1:[op99rtdb01]:/usr/openv/netbackup/logs/user_ops/dbext/logs>more 709.0.1264176793
Backup started Fri Jan 22 10:13:13 2010


10:14:11 INF - Backup id = standbynode1_1264176842
10:14:11 INF - Backup time = 1264176842
10:14:11 INF - Policy name = rdc_oradb_qa
10:14:11 INF - Snapshot = 0
10:14:12 INF - Frozen image = 0
10:14:12 INF - Backup copy = 0
10:14:12 INF - Master server = nbmstrnode1

Key words : create ; auxiliary ; duplicate ; standby ; dataguard ; full ; backup ;
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