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RAC數(shù)據(jù)庫的RMAN備份異機(jī)如何恢復(fù)到單節(jié)點(diǎn)數(shù)據(jù)庫,很多新手對(duì)此不是很清楚,為了幫助大家解決這個(gè)難題,下面小編將為大家詳細(xì)講解,有這方面需求的人可以來學(xué)習(xí)下,希望你能有所收獲。
1、首先在rac環(huán)境用rman備份數(shù)據(jù)庫。
[oracle@rac1 admin]$ rman target /
run
{
allocate channel c1 device type disk connect 'sys/welcome123@IRAC1';
allocate channel c2 device type disk connect 'sys/welcome123@IRAC2';
backup AS COMPRESSED BACKUPSET incremental level= 0 Database format='/u01/app/oracle/backup/full_%U_%T' tag='fullbackup';
sql 'alter system archive log current';
backup archivelog all tag='arc_bak' format='/u01/app/oracle/backup/arch_%U_%T' delete input;
backup current controlfile tag='bak_ctlfile' format='/u01/app/oracle/backup/ctl_file_%U_%T';
backup spfile tag='spfile' format='/u01/app/oracle/backup/spfile_%U_%T';
release channel c2;
release channel c1;
}
備份過程中出現(xiàn)如下報(bào)錯(cuò)
released channel: c1
released channel: c2
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on c1 channel at 08/25/2017 17:19:41
ORA-00245: control file backup failed; target is likely on a local file system
處理方法如下,在RAC環(huán)境運(yùn)行如下命令:
RMAN>show snapshot controlfile name;
RMAN>CONFIGURE SNAPSHOT CONTROLFILE NAME TO '+DATA/IRAC/CONTROLFILE/snapcf_IRAC.f';
處理后備份成功。
2、將rac環(huán)境的rman備份拷貝到單機(jī)(注意需要從rac的節(jié)點(diǎn)二上拷貝一部分來)。并就rac環(huán)境pfile copy到單機(jī),根據(jù)單機(jī)主機(jī)資源,修改集群參數(shù),實(shí)例名,文件路徑以及sga和pga等參數(shù)。修改如下:
*.audit_file_dest='/u01/oracle/admin/IRAC/adump'
*.audit_trail='db'
*.compatible='11.2.0.0.0'
*.control_files='/u01/oracle/oradata/IRAC/control01.dbf','/u01/oracle/oradata/IRAC/control02.dbf'
*.db_block_size=8192
*.db_create_file_dest='/u01/oracle/oradata/IRAC/'
*.db_name='IRAC'
*.db_recovery_file_dest='/u01/oracle/'
*.db_recovery_file_dest_size=4558159872
*.diagnostic_dest='/u01/oracle'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=IRACXDB)'
*.log_archive_dest_1='location=/u01/oracle/archive'
*.open_cursors=300
*.pga_aggregate_target=100m
*.processes=150
*.remote_login_passwordfile='exclusive'
*.sga_target=400m
IRAC.undo_tablespace='UNDOTBS1'
3、用pfile將數(shù)據(jù)庫啟動(dòng)到nomount
export ORACLE_SID=IRAC
[orapre@ouc backup]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Sun Aug 27 19:06:40 2017
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup nomount pfile='/u01/backup/1.ora';
ORACLE instance started.
Total System Global Area 417546240 bytes
Fixed Size 2228944 bytes
Variable Size 134221104 bytes
Database Buffers 272629760 bytes
Redo Buffers 8466432 bytes
SQL>
4、restore 控制文件。
restore controlfile from '/u01/backup/ctl_file_18sd1hv3_1_1_20170828';
[orapre@ouc backup]$ rman target /
Recovery Manager: Release 11.2.0.3.0 - Production on Sun Aug 27 20:48:13 2017
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: IRAC (not mounted)
RMAN> restore controlfile from '/u01/backup/ctl_file_18sd1hv3_1_1_20170828';
Starting restore at 27-AUG-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=134 device type=DISK
channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:07
output file name=/u01/oracle/oradata/IRAC/control01.dbf
output file name=/u01/oracle/oradata/IRAC/control02.dbf
Finished restore at 27-AUG-17
RMAN>
5、restore 數(shù)據(jù)文件、歸檔。
alter database mount;
catalog start with '/u01/backup';
run{
allocate channel c1 device type disk;
allocate channel c2 device type disk;
set newname for datafile 1 to '/u01/oracle/oradata/IRAC/system.dbf';
set newname for datafile 2 to '/u01/oracle/oradata/IRAC/sysaux.dbf';
set newname for datafile 3 to '/u01/oracle/oradata/IRAC/undotbs1.dbf';
set newname for datafile 4 to '/u01/oracle/oradata/IRAC/users.dbf';
set newname for datafile 5 to '/u01/oracle/oradata/IRAC/undotbs2.dbf';
set newname for datafile 6 to '/u01/oracle/oradata/IRAC/example.dbf';
restore database;
switch datafile all;
release channel c1;
release channel c2;
}
RMAN> list backup of archivelog all;
List of Backup Sets
===================
BS Key Size
------- ----------
35 4.81M
List of Archived Logs in backup set 35
Thrd Seq Low SCN Low Time Next SCN Next Time
---- ------- ---------- --------- ---------- ---------
1 41 3183645 28-AUG-17 3209549 28-AUG-17
2 30 3183649 28-AUG-17 3209517 28-AUG-17
Backup Set Copy #1 of backup set 35
Device Type Elapsed Time Completion Time Compressed Tag
----------- ------------ --------------- ---------- ---
DISK 00:00:00 28-AUG-17 NO ARC_BAK
List of Backup Pieces for backup set 35 Copy #1
BP Key Pc# Status Piece Name
------- --- ----------- ----------
35 1 EXPIRED /u01/app/oracle/backup/arch_14sd1hv1_1_1_20170828
Backup Set Copy #2 of backup set 35
Device Type Elapsed Time Completion Time Compressed Tag
----------- ------------ --------------- ---------- ---
DISK 00:00:00 27-AUG-17 NO ARC_BAK
List of Backup Pieces for backup set 35 Copy #2
BP Key Pc# Status Piece Name
------- --- ----------- ----------
44 1 AVAILABLE /u01/backup/arch_14sd1hv1_1_1_20170828
BS Key Size
------- ----------
36 1.68M
List of Archived Logs in backup set 36
Thrd Seq Low SCN Low Time Next SCN Next Time
---- ------- ---------- --------- ---------- ---------
1 42 3209549 28-AUG-17 3216276 28-AUG-17
2 31 3209517 28-AUG-17 3209519 28-AUG-17
Backup Set Copy #1 of backup set 36
Device Type Elapsed Time Completion Time Compressed Tag
----------- ------------ --------------- ---------- ---
DISK 00:00:00 28-AUG-17 NO ARC_BAK
List of Backup Pieces for backup set 36 Copy #1
BP Key Pc# Status Piece Name
------- --- ----------- ----------
36 1 EXPIRED /u01/app/oracle/backup/arch_15sd1hv2_1_1_20170828
Backup Set Copy #2 of backup set 36
Device Type Elapsed Time Completion Time Compressed Tag
----------- ------------ --------------- ---------- ---
DISK 00:00:00 27-AUG-17 NO ARC_BAK
List of Backup Pieces for backup set 36 Copy #2
BP Key Pc# Status Piece Name
------- --- ----------- ----------
43 1 AVAILABLE /u01/backup/arch_15sd1hv2_1_1_20170828
BS Key Size
------- ----------
37 1.85M
List of Archived Logs in backup set 37
Thrd Seq Low SCN Low Time Next SCN Next Time
---- ------- ---------- --------- ---------- ---------
2 32 3209656 28-AUG-17 3216272 28-AUG-17
2 33 3216272 28-AUG-17 3216288 28-AUG-17
Backup Set Copy #1 of backup set 37
Device Type Elapsed Time Completion Time Compressed Tag
----------- ------------ --------------- ---------- ---
DISK 00:00:00 28-AUG-17 NO ARC_BAK
List of Backup Pieces for backup set 37 Copy #1
BP Key Pc# Status Piece Name
------- --- ----------- ----------
37 1 EXPIRED /u01/app/oracle/backup/arch_16sd1hut_1_1_20170828
Backup Set Copy #2 of backup set 37
Device Type Elapsed Time Completion Time Compressed Tag
----------- ------------ --------------- ---------- ---
DISK 00:00:00 27-AUG-17 NO ARC_BAK
List of Backup Pieces for backup set 37 Copy #2
BP Key Pc# Status Piece Name
------- --- ----------- ----------
47 1 AVAILABLE /u01/backup/arch_16sd1hut_1_1_20170828
BS Key Size
------- ----------
38 2.00K
List of Archived Logs in backup set 38
Thrd Seq Low SCN Low Time Next SCN Next Time
---- ------- ---------- --------- ---------- ---------
1 43 3216276 28-AUG-17 3216284 28-AUG-17
Backup Set Copy #1 of backup set 38
Device Type Elapsed Time Completion Time Compressed Tag
----------- ------------ --------------- ---------- ---
DISK 00:00:00 28-AUG-17 NO ARC_BAK
List of Backup Pieces for backup set 38 Copy #1
BP Key Pc# Status Piece Name
------- --- ----------- ----------
38 1 EXPIRED /u01/app/oracle/backup/arch_17sd1hv2_1_1_20170828
Backup Set Copy #2 of backup set 38
Device Type Elapsed Time Completion Time Compressed Tag
----------- ------------ --------------- ---------- ---
DISK 00:00:00 27-AUG-17 NO ARC_BAK
List of Backup Pieces for backup set 38 Copy #2
BP Key Pc# Status Piece Name
------- --- ----------- ----------
42 1 AVAILABLE /u01/backup/arch_17sd1hv2_1_1_20170828
RMAN>restore archivelog sequence between 30 and 33 thread 2;
RMAN>restore archivelog sequence between 41 and 43 thread 1;
6、打開數(shù)據(jù)庫
SQL> recover database using backup controlfile until cancel;
ORA-00279: change 3216190 generated at 08/28/2017 11:38:07 needed for thread 1
ORA-00289: suggestion : /u01/oracle/archive/1_42_951416315.dbf
ORA-00280: change 3216190 for thread 1 is in sequence #42
Specify log: {=suggested | filename | AUTO | CANCEL}
AUTO
>recover出現(xiàn)報(bào)錯(cuò),直接常識(shí)open resetlogs
open resetlog之前需要對(duì)redolog重命名
alter database rename file '+DATA/irac/onlinelog/group_2.264.951416317' to '/u01/oracle/oradata/IRAC/redo01.dbf';
alter database rename file '+DATA/irac/onlinelog/group_2.265.951416317' to '/u01/oracle/oradata/IRAC/redo02.dbf';
alter database rename file '+DATA/irac/onlinelog/group_1.262.951416315' to '/u01/oracle/oradata/IRAC/redo03.dbf';
alter database rename file '+DATA/irac/onlinelog/group_1.263.951416317' to '/u01/oracle/oradata/IRAC/redo04.dbf';
alter database rename file '+DATA/irac/onlinelog/group_3.268.951416437' to '/u01/oracle/oradata/IRAC/redo05.dbf';
alter database rename file '+DATA/irac/onlinelog/group_3.269.951416439' to '/u01/oracle/oradata/IRAC/redo06.dbf';
alter database rename file '+DATA/irac/onlinelog/group_4.270.951416439' to '/u01/oracle/oradata/IRAC/redo07.dbf';
alter database rename file '+DATA/irac/onlinelog/group_4.271.951416439' to '/u01/oracle/oradata/IRAC/redo08.dbf';
alter database open resetlogs;
create temporary tablespace temp1 tempfile '/u01/oracle/oradata/IRAC/temp1.dbf'size 20M;
alter database default temporary tablespace temp1;
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