Backup standby database

Question

We have 11grac implemented on windows with a physical standby on DR site, please advise how I can take backup of the phyiscal standby database?

Answer 1

I have done cold backups of the RAC standby databases in ASM from another database on the same box that is open using the DBMS_FILE_TRANSFER.COPY_FILE unility. I do the following steps 1) Use the following script to create a cold backups script when the standby is in mount mode. 2) Shutdown the standby. 3) Run the result script in another database that is in open mode (the DBMS_FILE_TRANSFER.COPY_FILE will only run in an open database). 4) restart the standby application of archive logs after the cold backup is done.
-- script to create cold backup of RAC ASM Standby
set pages 0
set feedback off
set lines 300
col dummy noprint
set wrap off
-- for gzip's to work
col name for a50
select name from v$datafile;
select 'cd /stg/oracle/backups/cold_backup' from dual
select 'CREATE OR REPLACE DIRECTORY asm_files AS '''||'&substr_ASM_PREFIX_OF_FILENAME'||''' ;' from dual
-- grants not needed if running from sys
select 'GRANT WRITE ON DIRECTORY asm_files TO "ENWEBP1";' from dual
select 'CREATE OR REPLACE DIRECTORY DSK_FILES AS ''/stg/oracle/backups/cold_backup'';' from dual
select 'GRANT WRITE ON DIRECTORY dsk_files TO "ENWEBP1";' from dual
select substr(name,length(name)-instr(reverse(name),'/',1)+2,100)||'.A' dummy,'exec DBMS_FILE_TRANSFER.COPY_FILE ( ''asm_files'' , '''
||substr(name,length(name)-instr(reverse(name),'/',1)+2,100)
||''' , ''dsk_files'' , '''||substr(name,length(name)-instr(reverse(name),'/',1)+2,100)||''' );' cmd
from v$datafile
where upper(substr(name,1,length('&substr_ASM_PREFIX_OF_FILENAME')))=upper('&substr_ASM_PREFIX_OF_FILENAME')
union
select substr(name,length(name)-instr(reverse(name),'/',1)+2,100)||'.B' dummy,'host gzip '
||substr(name,length(name)-instr(reverse(name),'/',1)+2,100) cmd from v$datafile
where upper(substr(name,1,length('&substr_ASM_PREFIX_OF_FILENAME')))=upper('&substr_ASM_PREFIX_OF_FILENAME')
order by dummy
select name||'.A' dummy,'CREATE OR REPLACE DIRECTORY asm_files AS '''||substr(name,1,length(name)-instr(reverse(name),'/',1))||''' ;'
from v$controlfile
union
select name||'.b' dummy,'exec DBMS_FILE_TRANSFER.COPY_FILE ( ''asm_files'' , '''||substr(name,length(name)-instr(reverse(name),'/',1)+2,100)
||''' , ''dsk_files'' , '''||substr(name,length(name)-instr(reverse(name),'/',1)+2,100)||''' );'
from v$controlfile order by dummy
set pages 100
set feedback on
If I do happen to restore, I 1) Shutdown the standby 2) Erase datafiles and controlfiles (I keep the redo logs but that last script later (see below) will drop and recreate them with the clear command so you can also remove the redo logs if you wish). 3) Use the following script to create a restore script.
-- Script to create cold restore of RAC standby database in ASM
set pages 0
set feedback off
set lines 300
col dummy noprint
set wrap off
-- for gzip's to work
col name for a50
select name from v$datafile;
select 'cd /stg/oracle/backups/cold_backup' from dual
select 'rm '||name from v$datafile order by name
select 'CREATE OR REPLACE DIRECTORY asm_files AS '''||'&substr_ASM_PREFIX_OF_FILENAME'||''' ;' from dual
-- grants not needed if running from sys
select 'GRANT WRITE ON DIRECTORY asm_files TO "ENWEBP1";' from dual
select 'CREATE OR REPLACE DIRECTORY DSK_FILES AS ''/stg/oracle/backups/cold_backup'';' from dual
select 'GRANT WRITE ON DIRECTORY dsk_files TO "ENWEBP1";' from dual
select substr(name,length(name)-instr(reverse(name),'/',1)+2,100)||'.A' dummy,'host gunzip '
||substr(name,length(name)-instr(reverse(name),'/',1)+2,100)||'.gz' cmd from v$datafile
where upper(substr(name,1,length('&substr_ASM_PREFIX_OF_FILENAME')))=upper('&substr_ASM_PREFIX_OF_FILENAME')
union
select substr(name,length(name)-instr(reverse(name),'/',1)+2,100)||'.B' dummy,'exec DBMS_FILE_TRANSFER.COPY_FILE ( ''dsk_files'' , '''
||substr(name,length(name)-instr(reverse(name),'/',1)+2,100)
||''' , ''asm_files'' , '''||substr(name,length(name)-instr(reverse(name),'/',1)+2,100)||''' );' cmd
from v$datafile
where upper(substr(name,1,length('&substr_ASM_PREFIX_OF_FILENAME')))=upper('&substr_ASM_PREFIX_OF_FILENAME')
union
select substr(name,length(name)-instr(reverse(name),'/',1)+2,100)||'.C' dummy,'host gzip '
||substr(name,length(name)-instr(reverse(name),'/',1)+2,100) cmd from v$datafile
where upper(substr(name,1,length('&substr_ASM_PREFIX_OF_FILENAME')))=upper('&substr_ASM_PREFIX_OF_FILENAME')
order by dummy
select name||'.A' dummy,'CREATE OR REPLACE DIRECTORY asm_files AS '''||substr(name,1,length(name)-instr(reverse(name),'/',1))||''' ;'
from v$controlfile
union
select name||'.b' dummy,'exec DBMS_FILE_TRANSFER.COPY_FILE ( ''dsk_files'' , '''||substr(name,length(name)-instr(reverse(name),'/',1)+2,100)
||''' , ''asm_files'' , '''||substr(name,length(name)-instr(reverse(name),'/',1)+2,100)||''' );'
from v$controlfile order by dummy
set pages 100
set feedback on
and finally I run 4) clear redo logs with the following script:
set pages 0
set feedback off
select 'alter database recover managed standby database cancel;' from dual;
select 'alter database clear logfile group '||group#||';' from v$log order by group#;
set feedback on
set pages 100
and 5) Open database and restart replication
For Example:
ENWEBP1 > @cr8_COLD_BACKUP_dbms_FILE_TRANSFER_COPY_FILE_from_ASM_to_FS.sql
Enter value for substr_asm_prefix_of_filename: +DATA1/nwebp/datafile
Enter value for substr_asm_prefix_of_filename: +DATA1/nwebp/datafile
Enter value for substr_asm_prefix_of_filename: +DATA1/nwebp/datafile
Enter value for substr_asm_prefix_of_filename: +DATA1/nwebp/datafile
Enter value for substr_asm_prefix_of_filename: +DATA1/nwebp/datafile
cd /stg/oracle/backups/cold_backup
CREATE OR REPLACE DIRECTORY asm_files AS '+DATA1/nwebp/datafile' ;
GRANT WRITE ON DIRECTORY asm_files TO "ENWEBP1";
CREATE OR REPLACE DIRECTORY DSK_FILES AS '/stg/oracle/backups/cold_backup';
GRANT WRITE ON DIRECTORY dsk_files TO "ENWEBP1";
Enter value for substr_asm_prefix_of_filename: +DATA1/nwebp/datafile
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'asm_files' , 'content_data.290.623955671' , 'dsk_files' , 'content_data.290.623955671' );
host gzip content_data.290.623955671
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'asm_files' , 'gsis_data.284.623955547' , 'dsk_files' , 'gsis_data.284.623955547' );
host gzip gsis_data.284.623955547
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'asm_files' , 'site_data.288.623955617' , 'dsk_files' , 'site_data.288.623955617' );
host gzip site_data.288.623955617
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'asm_files' , 'sysaux.264.621275031' , 'dsk_files' , 'sysaux.264.621275031' );
host gzip sysaux.264.621275031
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'asm_files' , 'system.262.621275025' , 'dsk_files' , 'system.262.621275025' );
host gzip system.262.621275025
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'asm_files' , 'undotbs1.263.621275031' , 'dsk_files' , 'undotbs1.263.621275031' );
host gzip undotbs1.263.621275031
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'asm_files' , 'undotbs2.266.621275035' , 'dsk_files' , 'undotbs2.266.621275035' );
host gzip undotbs2.266.621275035
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'asm_files' , 'undotbs3.267.621275037' , 'dsk_files' , 'undotbs3.267.621275037' );
host gzip undotbs3.267.621275037
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'asm_files' , 'users.268.621275039' , 'dsk_files' , 'users.268.621275039' );
host gzip users.268.621275039
CREATE OR REPLACE DIRECTORY asm_files AS '+DATA1/nwebp' ;
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'asm_files' , 'control01.ctl' , 'dsk_files' , 'control01.ctl' );
CREATE OR REPLACE DIRECTORY asm_files AS '+DATA1/nwebp' ;
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'asm_files' , 'control02.ctl' , 'dsk_files' , 'control02.ctl' );
CREATE OR REPLACE DIRECTORY asm_files AS '+DATA1/nwebp' ;
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'asm_files' , 'control03.ctl' , 'dsk_files' , 'control03.ctl' );
ENWEBP1 > @cr8_COLD_RESTORE_dbms_FILE_TRANSFER_COPY_FILE_from_FS_to_ASM.sql
Enter value for substr_asm_prefix_of_filename: +DATA1/nwebp/datafile
CREATE OR REPLACE DIRECTORY asm_files AS '+DATA1/nwebp/datafile' ;
GRANT WRITE ON DIRECTORY asm_files TO "ENWEBP1";
CREATE OR REPLACE DIRECTORY DSK_FILES AS '/stg/oracle/backups/cold_backup';
GRANT WRITE ON DIRECTORY dsk_files TO "ENWEBP1";
Enter value for substr_asm_prefix_of_filename: +DATA1/nwebp/datafile
Enter value for substr_asm_prefix_of_filename: +DATA1/nwebp/datafile
Enter value for substr_asm_prefix_of_filename: +DATA1/nwebp/datafile
Enter value for substr_asm_prefix_of_filename: +DATA1/nwebp/datafile
Enter value for substr_asm_prefix_of_filename: +DATA1/nwebp/datafile
Enter value for substr_asm_prefix_of_filename: +DATA1/nwebp/datafile
cd /stg/oracle/backups/cold_backup
rm +DATA1/nwebp/datafile/content_data.290.623955671
rm +DATA1/nwebp/datafile/gsis_data.284.623955547
rm +DATA1/nwebp/datafile/site_data.288.623955617
rm +DATA1/nwebp/datafile/sysaux.264.621275031
rm +DATA1/nwebp/datafile/system.262.621275025
rm +DATA1/nwebp/datafile/undotbs1.263.621275031
rm +DATA1/nwebp/datafile/undotbs2.266.621275035
rm +DATA1/nwebp/datafile/undotbs3.267.621275037
rm +DATA1/nwebp/datafile/users.268.621275039
rm +DATA3/nwebp/datafile/content_index01.dbf
rm +DATA3/nwebp/datafile/gsis_index01.dbf
rm +DATA3/nwebp/datafile/polls_data01.dbf
rm +DATA3/nwebp/datafile/polls_index01.dbf
rm +DATA3/nwebp/datafile/profile_data01.dbf
rm +DATA3/nwebp/datafile/profile_index01.dbf
rm +DATA3/nwebp/datafile/site_index01.dbf
CREATE OR REPLACE DIRECTORY asm_files AS '+DATA1/nwebp/datafile' ;
GRANT WRITE ON DIRECTORY asm_files TO "ENWEBP1";
CREATE OR REPLACE DIRECTORY DSK_FILES AS '/stg/oracle/backups/cold_backup';
GRANT WRITE ON DIRECTORY dsk_files TO "ENWEBP1";
host gunzip content_data.290.623955671.gz
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'dsk_files' , 'content_data.290.623955671' , 'asm_files' , 'content_data.290.623955671' );
host gzip content_data.290.623955671
host gunzip gsis_data.284.623955547.gz
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'dsk_files' , 'gsis_data.284.623955547' , 'asm_files' , 'gsis_data.284.623955547' );
host gzip gsis_data.284.623955547
host gunzip site_data.288.623955617.gz
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'dsk_files' , 'site_data.288.623955617' , 'asm_files' , 'site_data.288.623955617' );
host gzip site_data.288.623955617
host gunzip sysaux.264.621275031.gz
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'dsk_files' , 'sysaux.264.621275031' , 'asm_files' , 'sysaux.264.621275031' );
host gzip sysaux.264.621275031
host gunzip system.262.621275025.gz
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'dsk_files' , 'system.262.621275025' , 'asm_files' , 'system.262.621275025' );
host gzip system.262.621275025
host gunzip undotbs1.263.621275031.gz
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'dsk_files' , 'undotbs1.263.621275031' , 'asm_files' , 'undotbs1.263.621275031' );
host gzip undotbs1.263.621275031
host gunzip undotbs2.266.621275035.gz
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'dsk_files' , 'undotbs2.266.621275035' , 'asm_files' , 'undotbs2.266.621275035' );
host gzip undotbs2.266.621275035
host gunzip undotbs3.267.621275037.gz
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'dsk_files' , 'undotbs3.267.621275037' , 'asm_files' , 'undotbs3.267.621275037' );
host gzip undotbs3.267.621275037
host gunzip users.268.621275039.gz
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'dsk_files' , 'users.268.621275039' , 'asm_files' , 'users.268.621275039' );
host gzip users.268.621275039
CREATE OR REPLACE DIRECTORY asm_files AS '+DATA1/nwebp' ;
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'dsk_files' , 'control01.ctl' , 'asm_files' , 'control01.ctl' );
CREATE OR REPLACE DIRECTORY asm_files AS '+DATA1/nwebp' ;
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'dsk_files' , 'control02.ctl' , 'asm_files' , 'control02.ctl' );
CREATE OR REPLACE DIRECTORY asm_files AS '+DATA1/nwebp' ;
exec DBMS_FILE_TRANSFER.COPY_FILE ( 'dsk_files' , 'control03.ctl' , 'asm_files' , 'control03.ctl' );
ENWEBP1 > @RMAN_Cr8_Clear_Standby_logs.sql
alter database recover managed standby database cancel;
alter database clear logfile group 1;
alter database clear logfile group 2;
alter database clear logfile group 3;
alter database clear logfile group 4;
alter database clear logfile group 5;
alter database clear logfile group 6;
alter database clear logfile group 7;
alter database clear logfile group 8;
alter database clear logfile group 9;
alter database clear logfile group 10;
alter database clear logfile group 11;
alter database clear logfile group 12;
alter database clear logfile group 13;
alter database clear logfile group 14;
alter database clear logfile group 15;
Alan