NMDA Oracle: Steps to perform Cross System Restore of Oracle Database.

Restore and Recovery of Oracle Database require the following Steps.

1. Check the Pre-requisites.
2. Configure Source and Target Clients on NetWorker.
3. Identify the PIT Control file for restore.
4. The parameters in the PFILE/SPFILE must be set as per the Target host.
5. PFILE/SPFILE can also be restored from the backups if the Backup Piece Name is available.

Check the Pre-requisites.

1. Confirm the Target System is on the same Oracle Version as the Source. 
2. The Operating System and File System should be the same on both Source and Target host.
3. Check Oracle Documentation for Supported versions.
4. Create the database on the Target Host.

Configure Source and Target Clients on NetWorker.

1. Install NetWorker and NMDA on the Target System (Same version as the NetWorker Server)
2. Configure a client instance for the Target System. (Not necessary to schedule any backups)
3. Ensure the user@target_host (for example, oracle@target_host) is updated on the Remote Access field of the Source Client.
4. Ensure the user@target_host (for example, oracle@target_host) is updated on the Database Administrator in NMC (Server -> User and Group--> Database Administrator)

Identify the PIT Control file for restore.

1. Use the MMINFO command to identify the Control File Closest to the PIT restore time. In the below case the Restore is for 21st Feb 2025 Data.

        Can be ran from the Target Client.

        -s ProdServer is the NetWorker Server.

bash# mminfo -avot -s ProdServer -q client=prodlabdb-01 -r client,sscreate,name,copies,volume

prodlabdb-01  02/18/2025 RMAN:i13i4orv_1_1                  1 database.01
prodlabdb-01  02/21/2025 RMAN:ja3icm00_1_1                  1 database.01
prodlabdb-01  02/21/2025 RMAN:jc3icm7v_1_1                  1 database.01
prodlabdb-01  02/21/2025 RMAN:jd3icmhs_1_1                  1 database.01
prodlabdb-01  02/21/2025 RMAN:je3icmhs_1_1                  1 database.01
prodlabdb-01  02/21/2025 RMAN:jg3icmhs_1_1                  1 database.01
prodlabdb-01  02/21/2025 RMAN:jf3icmhs_1_1                  1 database.01
prodlabdb-01  02/22/2025 RMAN:jh3icurd_1_1                  1 database.01
prodlabdb-01  02/22/2025 RMAN:ji3icurh_1_1                  1 database.01
prodlabdb-01  02/22/2025 RMAN:jj3id0fg_1_1                  1 database.01
prodlabdb-01  02/22/2025 RMAN:jk3id0fg_1_1                  1 database.01
prodlabdb-01  02/22/2025 RMAN:controlfile_jl3id0fj_1_1      1 database.01

 Restore Control File

2. Use the above control file to Restore the Database. There can be other Naming conventions for the control file.

RMAN>
run
{
ALLOCATE CHANNEL CH1 TYPE 'SBT_TAPE';
SEND 'NSR_ENV=(NSR_SERVER=ProdServer,NSR_CLIENT=prodlabdb-01,NSR_DATA_VOLUME_POOL=database,NSR_DEBUG_LEVEL=5,NSR_DPRINTF=TRUE)';
restore controlfile from "controlfile_jl3id0fj_1_1";
RELEASE CHANNEL CH1;
}

3. Mount the database from the restored Control file.

SQL>alter database mount;

4. Validate the backup information and Identify the SCN or SEQUENCE Number from the "LIST BACKUP BY BACKUP" output.

Snippet below (Last Line)

Recovery can be done until SEQUENCE 5899.

RMAN> LIST BACKUP BY BACKUP;

BS Key  Type LV Size       Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
17612   Full    93.70G     SBT_TAPE    02:49:07     22-FEB-25
        BP Key: 17612   Status: AVAILABLE  Compressed: YES  Tag: TAG20250221T221003
        Handle: jd3icmhs_1_1   Media: database.002
  List of Datafiles in backup set 17612
  File LV Type Ckp SCN    Ckp Time  Name
  ---- -- ---- ---------- --------- ----
  3       Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/system.295.1084779711
  12      Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/apps_ts_tools.296.1084779711
  16      Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/apps_ts_seed.282.1084779983
  26      Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/apps_ts_media.283.1084779983
  27      Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/apps_ts_media.315.1084779711
  29      Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/apps_ts_media.316.1084779711
  33      Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/apps_ts_tx_idx.325.1107842193
  34      Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/apps_ts_media.326.1107842287
  39      Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/apps_ts_seed.331.1160384075
  40      Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/apps_ts_tx_idx.332.1160384111
  42      Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/apps_ts_media.334.1187447927
  288     Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/system.272.1084780009
  314     Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/portal.264.1084780021
  353     Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/system.277.1084779983
  354     Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/system.285.1084779977
  401     Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/apps_ts_tx_data.306.1084779711
  404     Full 6018330353968 21-FEB-25 /u09/LABTEST/db/apps_st/data/apps_ts_tx_idx.271.1084780009

BS Key  Size       Device Type Elapsed Time Completion Time
------- ---------- ----------- ------------ ---------------
17613   6.25M      SBT_TAPE    00:00:01     22-FEB-25
        BP Key: 17613   Status: AVAILABLE  Compressed: YES  Tag: TAG20250222T005927
        Handle: jj3id0fg_1_1   Media: database.002

  List of Archived Logs in backup set 17613
  Thrd Seq     Low SCN    Low Time  Next SCN   Next Time
  ---- ------- ---------- --------- ---------- ---------
  1    5899    6018330351597 21-FEB-25 6018330471551 22-FEB-25

Perform Restore and Recovery.

5. For HOT RMAN Backups it is necessary to use "SET UNTIL" clause for Restore or Recovery.
6. The Source FS paths of datafiles are Different from the Target datafile path. The "SET NEWNAME FOR DATAFILE TO" Command has to be used to restore the data to a New FS path.
7. Perform the Restore and then "SWITCH DATAFILE ALL".
8. Change the Log File Names and TEMP File names on Target

SQL "ALTER DATABASE RENAME FILE 'SOURCE FILE PATH' TO 'DESTINATION FILE PATH'";

9. Perform the Recovery using "RECOVER DATABASE" Command.

run
{
ALLOCATE CHANNEL CH1 TYPE 'SBT_TAPE';
ALLOCATE CHANNEL CH2 TYPE 'SBT_TAPE';
ALLOCATE CHANNEL CH3 TYPE 'SBT_TAPE';
ALLOCATE CHANNEL CH4 TYPE 'SBT_TAPE';
SEND 'NSR_ENV=(NSR_SERVER=ProdServer,NSR_CLIENT=prodlabdb-01,NSR_DATA_VOLUME_POOL=database,,NSR_DEBUG_LEVEL=9,NSR_DPRINTF=TRUE)';
SET NEWNAME FOR DATABASE TO '/u01/DBTEST/db/apps_st/data/%b';
set until sequence 5899 thread 1;
RESTORE DATABASE;
SWITCH DATAFILE ALL;
SQL "ALTER DATABASE RENAME FILE '+DATA/labprod/onlinelog/redo01.log' TO '/u01/DBTEST/db/apps_st/redo01.log'";
SQL "ALTER DATABASE RENAME FILE '+DATA/labprod/onlinelog/redo01.log' TO '/u01/DBTEST/db/apps_st/redo02.log'";
SQL "ALTER DATABASE RENAME FILE '+DATA/labprod/onlinelog/temp01.dbf' TO '/u01/DBTEST/db/apps_st/temp01.dbf'";
recover database;
RELEASE CHANNEL CH1;
RELEASE CHANNEL CH2;
RELEASE CHANNEL CH3;
RELEASE CHANNEL CH4;
}

10. Once the Above Steps Complete Successfully. The Database can be Opened with the following command.

RMAN> ALTER DATABASE OPEN RESETLOGS;

For Duplicate Database Restore. Recovery Wizard can be used once the Auxiliary instance is created on the Target host (Can be same host as well)

Check the following KB:

NMDA Oracle: How to Configure Auxiliary Database for Oracle Cross System Restore using NMC Wizard