Friday 31 December 2021

RMAN - Restore to new host operating system using CDB standby database using rman backup on 12.2.0.1.0 database

 RMAN -   Restore to new host operating system using CDB standby database  using rman backup on 12.2.0.1.0 database  


Scenario: We have 2 node CDB RAC 12.2.0.1.0 verion having non rac single physical standby database. We take rman backup from standby database. 

2 node rac instance : rac1, rac2

Physical standby : racdr 

Using rman backup we restore into new host with same name and figure out steps and challanges. 

We take rman backup

  • Take rman backup from standby database and transfer to new host machine 
  • Create pfile and mentioned  and create directory mentioned in pfile
  • Start database in no-mount stage using pfile
  • Connect rman console and restore control from standby backup
  • Open database in mount stage ( database in physical standby mode)
  • Catalog the backup from location 
  • Restore and recover database 
  • Clear redolog file and add new redologfile
  • Failover standby database to primary database
  • Remove undo tablespace and redo  thread #
  • Remove temporary  tablespace and create new temporary tablespace, make it default tablespace. 


  • Start database in nomount stage on new hosts  ( new pfile already created before startup)

[oracle@oem dbs]$ . oraenv

ORACLE_SID = [oemrep] ? racdr

ORACLE_HOME = [/home/oracle] ? /u01/app/oracle/product/12.2.0/dbhome_1

SQL> startup nomount;

ORACLE instance started.


Total System Global Area 1862270976 bytes

Fixed Size                  8794024 bytes

Variable Size             687865944 bytes

Database Buffers         1157627904 bytes

Redo Buffers                7983104 bytes

SQL> exit

Disconnected from Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production


  • Recover controlfile using rman backup taken from standby database 

[oracle@oem dbs]$ rman target /


Recovery Manager: Release 12.2.0.1.0 - Production on Wed Dec 29 13:36:48 2021


Copyright (c) 1982, 2017, Oracle and/or its affiliates.  All rights reserved.


connected to target database: RAC (not mounted)


RMAN> restore controlfile from '/u01/rman_srv4/control_RAC_20211217.bak';


Starting restore at 29-DEC-2021 13:37:01

using target database control file instead of recovery catalog

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=537 device type=DISK


channel ORA_DISK_1: copied control file copy

output file name=/u01/app/oracle/oradata/rac/control01.ctl

output file name=/u01/app/oracle/fast_recovery_area/rac/control02.ctl

Finished restore at 29-DEC-2021 13:37:03

  • Open database in mount stage 

RMAN> alter database mount;


Statement processed

released channel: ORA_DISK_1

  • Catalog rman backup from standby database 

RMAN> catalog start with '/u01/rman_srv4';


searching for all files that match the pattern /u01/rman_srv4


List of Files Unknown to the Database

=====================================

File Name: /u01/rman_srv4/Backup_RAC_DB_0t0go0cb_29_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1f0gvcji_47_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_0u0go0cb_30_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_0s0go0cb_28_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_110go0dp_33_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_0v0go0do_31_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1k0gvck4_52_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_0r0go0br_27_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1m0gvcl7_54_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_1e0gvcif_46_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_100go0do_32_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1h0gvck1_49_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_1o0gvcma_56_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_120go0e8_34_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1l0gvck4_53_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_1i0gvck1_50_1_20211217

File Name: /u01/rman_srv4/standbycontrol_RAC_1r0gvcn6_1_1.ctl

File Name: /u01/rman_srv4/Backup_RAC_DB_0q0go0bc_26_1_20211214

File Name: /u01/rman_srv4/control_RAC_20211217.bak

File Name: /u01/rman_srv4/Backup_RAC_DB_0p0go0bc_25_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_0o0go0bc_24_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1p0gvcmb_57_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_1g0gvcjq_48_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_130go0en_35_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1d0gvcif_45_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_140go0en_36_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1j0gvck2_51_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_1n0gvcl7_55_1_20211217


Do you really want to catalog the above files (enter YES or NO)? YEs

cataloging files...

cataloging done


List of Cataloged Files

=======================

File Name: /u01/rman_srv4/Backup_RAC_DB_0t0go0cb_29_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1f0gvcji_47_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_0u0go0cb_30_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_0s0go0cb_28_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_110go0dp_33_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_0v0go0do_31_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1k0gvck4_52_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_0r0go0br_27_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1m0gvcl7_54_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_1e0gvcif_46_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_100go0do_32_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1h0gvck1_49_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_1o0gvcma_56_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_120go0e8_34_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1l0gvck4_53_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_1i0gvck1_50_1_20211217

File Name: /u01/rman_srv4/standbycontrol_RAC_1r0gvcn6_1_1.ctl

File Name: /u01/rman_srv4/Backup_RAC_DB_0q0go0bc_26_1_20211214

File Name: /u01/rman_srv4/control_RAC_20211217.bak

File Name: /u01/rman_srv4/Backup_RAC_DB_0p0go0bc_25_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_0o0go0bc_24_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1p0gvcmb_57_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_1g0gvcjq_48_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_130go0en_35_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1d0gvcif_45_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_140go0en_36_1_20211214

File Name: /u01/rman_srv4/Backup_RAC_DB_1j0gvck2_51_1_20211217

File Name: /u01/rman_srv4/Backup_RAC_DB_1n0gvcl7_55_1_20211217



  • Restore database 

RMAN> restore database;


Starting restore at 29-DEC-2021 15:31:05

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=549 device type=DISK


channel ORA_DISK_1: starting datafile backup set restore

channel ORA_DISK_1: specifying datafile(s) to restore from backup set

channel ORA_DISK_1: restoring datafile 00013 to /u01/app/oracle/oradata/racdr/d0706a7d1c5f1532e0534738a8c0b3f6/datafile/undo_2.319.1091217683

channel ORA_DISK_1: restoring datafile 00014 to /u01/app/oracle/oradata/RACDR/D0706A7D1C5F1532E0534738A8C0B3F6/datafile/o1_mf_soetbs_jvk2n7gk_.dbf

channel ORA_DISK_1: reading from backup piece /u01/app/oracle/rmanbkp/Backup_RAC_DB_1k0gvck4_52_1_20211217

channel ORA_DISK_1: errors found reading piece handle=/u01/app/oracle/rmanbkp/Backup_RAC_DB_1k0gvck4_52_1_20211217

channel ORA_DISK_1: failover to piece handle=/u01/rman_srv4/Backup_RAC_DB_1k0gvck4_52_1_20211217 tag=TAG20211217T154259

channel ORA_DISK_1: restored backup piece 1

channel ORA_DISK_1: restore complete, elapsed time: 00:00:46

channel ORA_DISK_1: starting datafile backup set restore

channel ORA_DISK_1: specifying datafile(s) to restore from backup set

channel ORA_DISK_1: restoring datafile 00001 to /u01/app/oracle/oradata/racdr/datafile/system.257.1088276431

channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/racdr/datafile/undotbs1.259.1088276501

channel ORA_DISK_1: restoring datafile 00007 to /u01/app/oracle/oradata/racdr/datafile/users.260.1088276503

channel ORA_DISK_1: reading from backup piece /u01/app/oracle/rmanbkp/Backup_RAC_DB_1l0gvck4_53_1_20211217

channel ORA_DISK_1: errors found reading piece handle=/u01/app/oracle/rmanbkp/Backup_RAC_DB_1l0gvck4_53_1_20211217

channel ORA_DISK_1: failover to piece handle=/u01/rman_srv4/Backup_RAC_DB_1l0gvck4_53_1_20211217 tag=TAG20211217T154259

channel ORA_DISK_1: restored backup piece 1

channel ORA_DISK_1: restore complete, elapsed time: 00:00:25

channel ORA_DISK_1: starting datafile backup set restore

channel ORA_DISK_1: specifying datafile(s) to restore from backup set

channel ORA_DISK_1: restoring datafile 00003 to /u01/app/oracle/oradata/racdr/datafile/sysaux.258.1088276477

channel ORA_DISK_1: restoring datafile 00009 to /u01/app/oracle/oradata/racdr/datafile/undotbs2.272.1088276835

channel ORA_DISK_1: reading from backup piece /u01/app/oracle/rmanbkp/Backup_RAC_DB_1m0gvcl7_54_1_20211217

channel ORA_DISK_1: errors found reading piece handle=/u01/app/oracle/rmanbkp/Backup_RAC_DB_1m0gvcl7_54_1_20211217

channel ORA_DISK_1: failover to piece handle=/u01/rman_srv4/Backup_RAC_DB_1m0gvcl7_54_1_20211217 tag=TAG20211217T154259

channel ORA_DISK_1: restored backup piece 1

channel ORA_DISK_1: restore complete, elapsed time: 00:00:25

channel ORA_DISK_1: starting datafile backup set restore

channel ORA_DISK_1: specifying datafile(s) to restore from backup set

channel ORA_DISK_1: restoring datafile 00010 to /u01/app/oracle/oradata/racdr/d0706a7d1c5f1532e0534738a8c0b3f6/datafile/system.280.1088277275

channel ORA_DISK_1: restoring datafile 00011 to /u01/app/oracle/oradata/racdr/d0706a7d1c5f1532e0534738a8c0b3f6/datafile/sysaux.281.1088277275

channel ORA_DISK_1: restoring datafile 00012 to /u01/app/oracle/oradata/racdr/d0706a7d1c5f1532e0534738a8c0b3f6/datafile/undotbs1.279.1088277275

channel ORA_DISK_1: reading from backup piece /u01/app/oracle/rmanbkp/Backup_RAC_DB_1n0gvcl7_55_1_20211217

channel ORA_DISK_1: errors found reading piece handle=/u01/app/oracle/rmanbkp/Backup_RAC_DB_1n0gvcl7_55_1_20211217

channel ORA_DISK_1: failover to piece handle=/u01/rman_srv4/Backup_RAC_DB_1n0gvcl7_55_1_20211217 tag=TAG20211217T154259

channel ORA_DISK_1: restored backup piece 1

channel ORA_DISK_1: restore complete, elapsed time: 00:00:25

channel ORA_DISK_1: starting datafile backup set restore

channel ORA_DISK_1: specifying datafile(s) to restore from backup set

channel ORA_DISK_1: restoring datafile 00005 to /u01/app/oracle/oradata/racdr/4700a987085b3dfae05387e5e50a8c7b/datafile/system.269.1088276619

channel ORA_DISK_1: restoring datafile 00008 to /u01/app/oracle/oradata/racdr/4700a987085b3dfae05387e5e50a8c7b/datafile/undotbs1.270.1088276619

channel ORA_DISK_1: reading from backup piece /u01/app/oracle/rmanbkp/Backup_RAC_DB_1p0gvcmb_57_1_20211217

channel ORA_DISK_1: errors found reading piece handle=/u01/app/oracle/rmanbkp/Backup_RAC_DB_1p0gvcmb_57_1_20211217

channel ORA_DISK_1: failover to piece handle=/u01/rman_srv4/Backup_RAC_DB_1p0gvcmb_57_1_20211217 tag=TAG20211217T154259

channel ORA_DISK_1: restored backup piece 1

channel ORA_DISK_1: restore complete, elapsed time: 00:00:15

channel ORA_DISK_1: starting datafile backup set restore

channel ORA_DISK_1: specifying datafile(s) to restore from backup set

channel ORA_DISK_1: restoring datafile 00006 to /u01/app/oracle/oradata/racdr/4700a987085b3dfae05387e5e50a8c7b/datafile/sysaux.268.1088276619

channel ORA_DISK_1: reading from backup piece /u01/app/oracle/rmanbkp/Backup_RAC_DB_1o0gvcma_56_1_20211217

channel ORA_DISK_1: errors found reading piece handle=/u01/app/oracle/rmanbkp/Backup_RAC_DB_1o0gvcma_56_1_20211217

channel ORA_DISK_1: failover to piece handle=/u01/rman_srv4/Backup_RAC_DB_1o0gvcma_56_1_20211217 tag=TAG20211217T154259

channel ORA_DISK_1: restored backup piece 1

channel ORA_DISK_1: restore complete, elapsed time: 00:00:15

Finished restore at 29-DEC-2021 15:33:37


  • Recover database 

RMAN> recover database;


Starting recover at 29-DEC-2021 15:33:56

using channel ORA_DISK_1


starting media recovery


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

channel ORA_DISK_1: starting archived log restore to default destination

channel ORA_DISK_1: restoring archived log

archived log thread=1 sequence=89

channel ORA_DISK_1: reading from backup piece /u01/app/oracle/rmanbkp/Backup_RAC_DB_1h0gvck1_49_1_20211217

channel ORA_DISK_1: errors found reading piece handle=/u01/app/oracle/rmanbkp/Backup_RAC_DB_1h0gvck1_49_1_20211217

channel ORA_DISK_1: failover to piece handle=/u01/rman_srv4/Backup_RAC_DB_1h0gvck1_49_1_20211217 tag=TAG20211217T154207

channel ORA_DISK_1: restored backup piece 1

channel ORA_DISK_1: restore complete, elapsed time: 00:00:03

channel default: deleting archived log(s)

archived log file name=/u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/o1_mf_1_89_jwrdngkf_.arc RECID=131 STAMP=1092584039

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

Finished recover at 29-DEC-2021 15:34:01


RMAN>

  • Recover further archivelog. Copied from DR and recovery of archivelog to new hosts

[root@oem sf_software_26_sept_2021]# cp *.arc /u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29


[oracle@oem 2021_12_29]$ rman target /

Recovery Manager: Release 12.2.0.1.0 - Production on Wed Dec 29 16:08:23 2021

Copyright (c) 1982, 2017, Oracle and/or its affiliates.  All rights reserved.

connected to target database: RAC (DBID=2676258589, not open)

RMAN> recover database;

Starting recover at 29-DEC-2021 16:08:29
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=20 device type=DISK

starting media recovery

archived log for thread 1 with sequence 89 is already on disk as file /u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/arch_1_89_1088276576.arc
archived log for thread 1 with sequence 90 is already on disk as file /u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/arch_1_90_1088276576.arc
archived log for thread 1 with sequence 91 is already on disk as file /u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/arch_1_91_1088276576.arc
archived log for thread 1 with sequence 92 is already on disk as file /u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/arch_1_92_1088276576.arc
archived log for thread 2 with sequence 69 is already on disk as file /u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/arch_2_69_1088276576.arc
archived log for thread 2 with sequence 70 is already on disk as file /u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/arch_2_70_1088276576.arc
archived log for thread 2 with sequence 71 is already on disk as file /u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/arch_2_71_1088276576.arc
archived log file name=/u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/arch_2_69_1088276576.arc thread=2 sequence=69
archived log file name=/u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/arch_1_89_1088276576.arc thread=1 sequence=89
archived log file name=/u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/arch_1_90_1088276576.arc thread=1 sequence=90
archived log file name=/u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/arch_1_91_1088276576.arc thread=1 sequence=91
archived log file name=/u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/arch_2_70_1088276576.arc thread=2 sequence=70
archived log file name=/u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/arch_1_92_1088276576.arc thread=1 sequence=92
archived log file name=/u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/arch_2_71_1088276576.arc thread=2 sequence=71
media recovery complete, elapsed time: 00:00:03
Finished recover at 29-DEC-2021 16:08:33

RMAN>

  • We have done restoration using rman backup from physical standby database so we are unable to open database in resetlog options. 

RMAN> alter database open resetlog;

RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 12/29/2021 16:08:55
ORA-02288: invalid OPEN mode


RMAN> exit

  • First Failover from physical standby database to primary database to current new host database   (But during conversion we find standby redo logfile not created on redo logfile location we cleared it first and add new redo logfile  then perform failover ).  
Recovery Manager complete.
[oracle@oem 2021_12_29]$ sqlplus / as sysdba

SQL*Plus: Release 12.2.0.1.0 Production on Wed Dec 29 16:37:57 2021

Copyright (c) 1982, 2016, Oracle.  All rights reserved.


Connected to:
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production

SQL> sho pdbs

    CON_ID CON_NAME                       OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
         2 PDB$SEED                       MOUNTED
         3 RACPDB                         MOUNTED
SQL> select name,open_mode,database_role from v$database;

NAME      OPEN_MODE            DATABASE_ROLE
--------- -------------------- ----------------
RAC       MOUNTED              PHYSICAL STANDBY


SQL> select name from v$datafile;

NAME
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/racdr/datafile/system.257.1088276431
/u01/app/oracle/oradata/racdr/datafile/sysaux.258.1088276477
/u01/app/oracle/oradata/racdr/datafile/undotbs1.259.1088276501
/u01/app/oracle/oradata/racdr/4700a987085b3dfae05387e5e50a8c7b/datafile/system.2
69.1088276619

/u01/app/oracle/oradata/racdr/4700a987085b3dfae05387e5e50a8c7b/datafile/sysaux.2
68.1088276619

/u01/app/oracle/oradata/racdr/datafile/users.260.1088276503
/u01/app/oracle/oradata/racdr/4700a987085b3dfae05387e5e50a8c7b/datafile/undotbs1

NAME
--------------------------------------------------------------------------------
.270.1088276619

/u01/app/oracle/oradata/racdr/datafile/undotbs2.272.1088276835
/u01/app/oracle/oradata/racdr/d0706a7d1c5f1532e0534738a8c0b3f6/datafile/system.2
80.1088277275

/u01/app/oracle/oradata/racdr/d0706a7d1c5f1532e0534738a8c0b3f6/datafile/sysaux.2
81.1088277275

/u01/app/oracle/oradata/racdr/d0706a7d1c5f1532e0534738a8c0b3f6/datafile/undotbs1
.279.1088277275

NAME
--------------------------------------------------------------------------------

/u01/app/oracle/oradata/racdr/d0706a7d1c5f1532e0534738a8c0b3f6/datafile/undo_2.3
19.1091217683

/u01/app/oracle/oradata/RACDR/D0706A7D1C5F1532E0534738A8C0B3F6/datafile/o1_mf_so
etbs_jvk2n7gk_.dbf


13 rows selected.

SQL> select name from v$tempfile;

NAME
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/racdr/tempfile/temp.267.1088276611
+DATA/RAC/D07045B084567D8BE0534738A8C057CB/TEMPFILE/temp.271.1088276639




SQL> select member from v$logfile;

MEMBER
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/racdr/onlinelog/group_2.264.1088276577
/u01/app/oracle/oradata/racdr/onlinelog/group_2.266.1088276589
/u01/app/oracle/oradata/racdr/onlinelog/group_1.263.1088276577
/u01/app/oracle/oradata/racdr/onlinelog/group_1.265.1088276589
/u01/app/oracle/oradata/racdr/onlinelog/group_3.273.1088277009
/u01/app/oracle/oradata/racdr/onlinelog/group_3.274.1088277017
/u01/app/oracle/oradata/racdr/onlinelog/group_4.275.1088277023
/u01/app/oracle/oradata/racdr/onlinelog/group_4.276.1088277033
/u01/app/oracle/oradata/racdr/onlinelog/redo05.log
/u01/app/oracle/oradata/racdr/onlinelog/redo06.log
/u01/app/oracle/oradata/racdr/onlinelog/redo07.log

11 rows selected.

SQL> select switchover_status from v$database;

SWITCHOVER_STATUS
--------------------
NOT ALLOWED


SQL>  ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
 ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL
*
ERROR at line 1:
ORA-16136: Managed Standby Recovery not active


SQL> ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY;
ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY
*
ERROR at line 1:
ORA-16139: media recovery required


SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH;
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH
*
ERROR at line 1:
ORA-00283: recovery session canceled due to errors
ORA-00313: open failed for members of log group 5 of thread 1
ORA-00312: online log 5 thread 1:
'/u01/app/oracle/oradata/racdr/onlinelog/redo05.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 7

SQL> select member from v$logfile;

MEMBER
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/racdr/onlinelog/group_2.264.1088276577
/u01/app/oracle/oradata/racdr/onlinelog/group_2.266.1088276589
/u01/app/oracle/oradata/racdr/onlinelog/group_1.263.1088276577
/u01/app/oracle/oradata/racdr/onlinelog/group_1.265.1088276589
/u01/app/oracle/oradata/racdr/onlinelog/group_3.273.1088277009
/u01/app/oracle/oradata/racdr/onlinelog/group_3.274.1088277017
/u01/app/oracle/oradata/racdr/onlinelog/group_4.275.1088277023
/u01/app/oracle/oradata/racdr/onlinelog/group_4.276.1088277033
/u01/app/oracle/oradata/racdr/onlinelog/redo05.log
/u01/app/oracle/oradata/racdr/onlinelog/redo06.log
/u01/app/oracle/oradata/racdr/onlinelog/redo07.log

11 rows selected.
SQL> select bytes from v$log;

     BYTES
----------
 209715200
 209715200
 209715200
 209715200

SQL> select GROUP#,THREAD#,STATUS from v$log;

    GROUP#    THREAD# STATUS
---------- ---------- ----------------
         1          1 UNUSED
         2          1 UNUSED
         3          2 UNUSED
         4          2 UNUSED
SQL> alter database add logfile group 5 ('/u01/app/oracle/oradata/racdr/onlinelog/redo05.log') size 200m;
alter database add logfile group 5 ('/u01/app/oracle/oradata/racdr/onlinelog/redo05.log') size 200m
*
ERROR at line 1:
ORA-01275: Operation ADD LOGFILE is not allowed if standby file management is
automatic.


SQL> sho parameter ORA-01275: Operation ADD LOGFILE is not allowed if standby file management is
automatic.
SQL> SP2-0042: unknown command "automatic." - rest of line ignored.
SQL>  sho parameter standby

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
enabled_PDBs_on_standby              string      *
standby_archive_dest                 string      ?#/dbs/arch
standby_db_preserve_states           string      NONE
standby_file_management              string      AUTO
SQL> alter system set standby_file_management='MANUAL';

System altered.



SQL> ALTER DATABASE ADD STANDBY LOGFILE group 8 '/u01/app/oracle/oradata/racdr/onlinelog/redo08.log' size 200m;

Database altered.


SQL> ALTER DATABASE ADD STANDBY LOGFILE group 9 '/u01/app/oracle/oradata/racdr/onlinelog/redo09.log' size 200m;

Database altered.

SQL>  ALTER DATABASE ADD STANDBY LOGFILE group 10 '/u01/app/oracle/oradata/racdr/onlinelog/redo10.log' size 200m;

Database altered.

SQL> select member from v$logfile;

MEMBER
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/racdr/onlinelog/group_2.264.1088276577
/u01/app/oracle/oradata/racdr/onlinelog/group_2.266.1088276589
/u01/app/oracle/oradata/racdr/onlinelog/group_1.263.1088276577
/u01/app/oracle/oradata/racdr/onlinelog/group_1.265.1088276589
/u01/app/oracle/oradata/racdr/onlinelog/group_3.273.1088277009
/u01/app/oracle/oradata/racdr/onlinelog/group_3.274.1088277017
/u01/app/oracle/oradata/racdr/onlinelog/group_4.275.1088277023
/u01/app/oracle/oradata/racdr/onlinelog/group_4.276.1088277033
/u01/app/oracle/oradata/racdr/onlinelog/redo05.log
/u01/app/oracle/oradata/racdr/onlinelog/redo06.log
/u01/app/oracle/oradata/racdr/onlinelog/redo07.log

MEMBER
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/racdr/onlinelog/redo08.log
/u01/app/oracle/oradata/racdr/onlinelog/redo09.log
/u01/app/oracle/oradata/racdr/onlinelog/redo10.log

14 rows selected.

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH;
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH
*
ERROR at line 1:
ORA-00283: recovery session canceled due to errors
ORA-00313: open failed for members of log group 6 of thread 2
ORA-00312: online log 6 thread 2:
'/u01/app/oracle/oradata/racdr/onlinelog/redo06.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 7




SQL> ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 6;

Database altered.

SQL> ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 7;

Database altered.

SQL> alter database drop logfile group 5;

Database altered.

SQL> alter database drop logfile group 6;

Database altered.

SQL> alter database drop logfile group 7;

Database altered.

SQL> select member from v$logfile;

MEMBER
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/racdr/onlinelog/group_2.264.1088276577
/u01/app/oracle/oradata/racdr/onlinelog/group_2.266.1088276589
/u01/app/oracle/oradata/racdr/onlinelog/group_1.263.1088276577
/u01/app/oracle/oradata/racdr/onlinelog/group_1.265.1088276589
/u01/app/oracle/oradata/racdr/onlinelog/group_3.273.1088277009
/u01/app/oracle/oradata/racdr/onlinelog/group_3.274.1088277017
/u01/app/oracle/oradata/racdr/onlinelog/group_4.275.1088277023
/u01/app/oracle/oradata/racdr/onlinelog/group_4.276.1088277033
/u01/app/oracle/oradata/racdr/onlinelog/redo08.log
/u01/app/oracle/oradata/racdr/onlinelog/redo09.log
/u01/app/oracle/oradata/racdr/onlinelog/redo10.log

11 rows selected.

  • Perform failover after clearing old redolog and adding new redolog file. 8,9,10 and we drop 7,8,9  redolog later. 

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH;

Database altered.

SQL> ALTER DATABASE ACTIVATE STANDBY DATABASE;

Database altered.

SQL> select name,open_mode ,database_role from v$database;

NAME      OPEN_MODE            DATABASE_ROLE
--------- -------------------- ----------------
RAC       MOUNTED              PRIMARY

  • Open database in read write mode 

SQL> alter database open;

Database altered.

SQL> select name,open_mode ,database_role from v$database;

NAME      OPEN_MODE            DATABASE_ROLE
--------- -------------------- ----------------
RAC       READ WRITE           PRIMARY

SQL> sho pdbs

    CON_ID CON_NAME                       OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
         2 PDB$SEED                       READ ONLY  NO
         3 RACPDB                         MOUNTED


SQL> alter pluggable database all open;

Pluggable database altered.

SQL> sho pdbs

    CON_ID CON_NAME                       OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
         2 PDB$SEED                       READ ONLY  NO
         3 RACPDB                         READ WRITE NO
SQL>

  • New host redo logfile location 
[root@oem onlinelog]# pwd
/u01/app/oracle/oradata/racdr/onlinelog
[root@oem onlinelog]# ll
total 2662472
-rw-r----- 1 oracle oinstall 209715712 Dec 29 17:54 group_1.263.1088276577
-rw-r----- 1 oracle oinstall 209715712 Dec 29 17:54 group_1.265.1088276589
-rw-r----- 1 oracle oinstall 209715712 Dec 29 18:04 group_2.264.1088276577
-rw-r----- 1 oracle oinstall 209715712 Dec 29 18:04 group_2.266.1088276589
-rw-r----- 1 oracle oinstall 209715712 Dec 29 17:54 group_3.273.1088277009
-rw-r----- 1 oracle oinstall 209715712 Dec 29 17:54 group_3.274.1088277017
-rw-r----- 1 oracle oinstall 209715712 Dec 29 17:55 group_4.275.1088277023
-rw-r----- 1 oracle oinstall 209715712 Dec 29 17:55 group_4.276.1088277033
-rw-r----- 1 oracle oinstall 209715712 Dec 29 17:52 redo06.log
-rw-r----- 1 oracle oinstall 209715712 Dec 29 17:53 redo07.log
-rw-r----- 1 oracle oinstall 209715712 Dec 29 17:34 redo08.log
-rw-r----- 1 oracle oinstall 209715712 Dec 29 17:35 redo09.log
-rw-r----- 1 oracle oinstall 209715712 Dec 29 17:35 redo10.log
[root@oem onlinelog]#


SQL> alter system set standby_file_management='AUTO';

System altered.

SQL> sho parameter standby

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
enabled_PDBs_on_standby              string      *
standby_archive_dest                 string      ?#/dbs/arch
standby_db_preserve_states           string      NONE
standby_file_management              string      AUTO


SQL> alter system switch logfile;

System altered.

SQL> /

System altered.

SQL> /

System altered.

SQL>


SQL> select * from v$log;

    GROUP#    THREAD#  SEQUENCE#      BYTES  BLOCKSIZE    MEMBERS ARC STATUS           FIRST_CHANGE# FIRST_TIM NEXT_CHANGE# NEXT_TIME     CON_ID
---------- ---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- --------- ------------ --------- ----------
         1          1          5  209715200        512          2 NO  CURRENT                4648936 29-DEC-21   1.8447E+19                    0
         2          1          4  209715200        512          2 YES INACTIVE               4648932 29-DEC-21      4648936 29-DEC-21          0
         3          2          1  209715200        512          2 YES INACTIVE               4647695 29-DEC-21      4647698 29-DEC-21          0
         4          2          2  209715200        512          2 YES INACTIVE               4647698 29-DEC-21      4647844 29-DEC-21          0

SQL> select * from v$logfile;

    GROUP# STATUS  TYPE    MEMBER                                                                 IS_     CON_ID
---------- ------- ------- ---------------------------------------------------------------------- --- ----------
         2         ONLINE  /u01/app/oracle/oradata/racdr/onlinelog/group_2.264.1088276577         NO           0
         2         ONLINE  /u01/app/oracle/oradata/racdr/onlinelog/group_2.266.1088276589         NO           0
         1         ONLINE  /u01/app/oracle/oradata/racdr/onlinelog/group_1.263.1088276577         NO           0
         1         ONLINE  /u01/app/oracle/oradata/racdr/onlinelog/group_1.265.1088276589         NO           0
         3         ONLINE  /u01/app/oracle/oradata/racdr/onlinelog/group_3.273.1088277009         NO           0
         3         ONLINE  /u01/app/oracle/oradata/racdr/onlinelog/group_3.274.1088277017         NO           0
         4         ONLINE  /u01/app/oracle/oradata/racdr/onlinelog/group_4.275.1088277023         NO           0
         4         ONLINE  /u01/app/oracle/oradata/racdr/onlinelog/group_4.276.1088277033         NO           0
         5         STANDBY /u01/app/oracle/fast_recovery_area/RAC/archivelog/2021_12_29/o1_mf_2_0 YES          0
                           _jwrnvch0_.arc


9 rows selected.

SQL>
  • Check and disable the closed state thread#2  and clear unarchived logfile 3 and 4 

SQL> select THREAD#, STATUS, ENABLED from v$thread;

   THREAD# STATUS ENABLED
---------- ------ --------
         1 OPEN   PUBLIC
         2 CLOSED PUBLIC

SQL>  select group# from v$log where THREAD#=2;

    GROUP#
----------
         3
         4

SQL> alter database disable thread 2;

Database altered.

SQL> alter database clear unarchived logfile group 3;

Database altered.

SQL>  alter database clear unarchived logfile group 4;

Database altered.

SQL>  select THREAD#, STATUS, ENABLED from v$thread;

   THREAD# STATUS ENABLED
---------- ------ --------
         1 OPEN   PUBLIC
         2 CLOSED DISABLED

SQL> sho parameter undo;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
temp_undo_enabled                    boolean     FALSE
undo_management                      string      AUTO
undo_retention                       integer     900
undo_tablespace                      string      UNDOTBS1

  • Remove undo tablespace UNDOTBS2

SQL> select tablespace_name from dba_tablespaces where contents='UNDO';

TABLESPACE_NAME
------------------------------
UNDOTBS1
UNDOTBS2

SQL> drop tablespace UNDOTBS2 including contents and datafiles;

Tablespace dropped.


  • Drop temporary tablespace and add new temporary tablespace temp1 and make as default tablespace 
SQL> select name from v$tempfile;

NAME
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
/u01/app/oracle/oradata/racdr/tempfile/temp.267.1088276611
+DATA/RAC/D07045B084567D8BE0534738A8C057CB/TEMPFILE/temp.271.1088276639



SQL> select tablespace_name from dba_tablespaces where contents='TEMPORARY';

TABLESPACE_NAME
------------------------------
TEMP


SQL> create temporary tablespace TEMP1 tempfile '/u01/app/oracle/oradata/racdr/tempfile/temp001.dbf' size 50m;

Tablespace created.

SQL> alter database default temporary tablespace TEMP1;

Database altered.

SQL> drop tablespace TEMP including contents and datafiles;

Tablespace dropped.

SQL> select tablespace_name from dba_tablespaces where contents='TEMPORARY';

TABLESPACE_NAME
------------------------------
TEMP1

SQL>

NOTE : --- increase pga_target , sga , temp file , undo file if required, match with production requirement.

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