linux系统下用rman实现oracle数据库全备份和增量备份
2012-09-28 15:36
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1.用命令 echo $ORACLE_SID 查看当前默认的ORACLE_SID,如果不是要备份的SID,修改 export ORACLE_SID=PORTAL ,(PORTAL为要备份的数据库实例)。
2.以sysdba身份连接到数据库 sqlplus / as sysdba .
3.查看当前sid,确保备份实例正确: select instance from v$thread;
4.查看数据库的日志模式: select log_mode fromv$database;
SQL>select log_mode from v$database;
LOG_MODE
------------------------------------
ARCHIVELOG
5.查看存档的目的地 archive log list
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination/export/db/oracle/oradata/ARCH
Oldest online log sequence 1265
Next log sequence to archive 1267
Current log sequence 1267
SQL>
如果要改变存档目的地 用 ALTER SYSTEM SET log_archive_dest_1='LOCATION=/export/db/oracle/oradata/ARCH';
6.停止数据库 shut immediate;
SQL> shut immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL>
7.在挂载状态下启动数据库 startup mount;
SQL> startup mount;
ORACLE instance started.
Total System Global Area 1031798784 bytes
Fixed Size 2089080 bytes
Variable Size 629149576 bytes
Database Buffers 394264576 bytes
Redo Buffers 6295552 bytes
Database mounted.
SQL>
8.启用归档日志 alter database archivelog;
SQL> alter databasearchivelog;
Database altered.
9.启动数据库(此时数据库可用) alter databaseopen;
SQL> alter database open;
Database altered.
SQL>
10.连接到rman: host rman target /
SQL> host rman target/
Recovery Manager: Release 10.2.0.4.0 - Production on Fri Sep 28 15:46:40 2012
Copyright (c) 1982, 2007, Oracle. All rights reserved.
connected to target database: PORTAL (DBID=4144397491)
RMAN>
11.配置rman:
RMAN>CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS;
RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON;
RMAN> CONFIGURE BACKUP OPTIMIZATION ON;
RMAN> CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICETYPE DISK TO '/export/db/oracle/oradata/RMAN/cro_%F';
12.运行以下脚本全数据库备份级别0:
RUN{
ALLOCATE CHANNEL C1 TYPE DISK;
ALLOCATE CHANNEL C2 TYPE DISK;
ALLOCATE CHANNEL C3 TYPE DISK;
BACKUP FILESPERSET 1 INCREMENTAL LEVEL 0 TAG 'LEV0' FORMAT'/export/db/oracle/oradata/RMAN/lev0%u_%s_%p'
DATABASE SKIP INACCESSIBLE PLUS ARCHIVELOG FORMAT'/export/db/oracle/oradata/RMAN/arch%u_%s_%p' DELETE INPUT;
RELEASE CHANNEL C1;
RELEASE CHANNEL C2;
RELEASE CHANNEL C3;
DELETE NOPROMPT OBSOLETE;
}
13.运行以下脚本增量累积数据库备份级别0:
RUN{
ALLOCATE CHANNEL C1 TYPE DISK;
ALLOCATE CHANNEL C2 TYPE DISK;
ALLOCATE CHANNEL C3 TYPE DISK;
BACKUP FILESPERSET 1 INCREMENTAL LEVEL 1 CUMULATIVE TAG'LEV1' CUMULATIVE FORMAT '/export/db/oracle/oradata/RMAN/lev1%u_%s_%p'
DATABASE SKIP INACCESSIBLE PLUS ARCHIVELOG FORMAT'/export/db/oracle/oradata/RMAN/arch%u_%s_%p' DELETE INPUT;
RELEASE CHANNEL C1;
RELEASE CHANNEL C2;
RELEASE CHANNEL C3;
DELETE NOPROMPT OBSOLETE;
}
备份完毕。
2.以sysdba身份连接到数据库 sqlplus / as sysdba .
3.查看当前sid,确保备份实例正确: select instance from v$thread;
4.查看数据库的日志模式: select log_mode fromv$database;
SQL>select log_mode from v$database;
LOG_MODE
------------------------------------
ARCHIVELOG
5.查看存档的目的地 archive log list
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination/export/db/oracle/oradata/ARCH
Oldest online log sequence 1265
Next log sequence to archive 1267
Current log sequence 1267
SQL>
如果要改变存档目的地 用 ALTER SYSTEM SET log_archive_dest_1='LOCATION=/export/db/oracle/oradata/ARCH';
6.停止数据库 shut immediate;
SQL> shut immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL>
7.在挂载状态下启动数据库 startup mount;
SQL> startup mount;
ORACLE instance started.
Total System Global Area 1031798784 bytes
Fixed Size 2089080 bytes
Variable Size 629149576 bytes
Database Buffers 394264576 bytes
Redo Buffers 6295552 bytes
Database mounted.
SQL>
8.启用归档日志 alter database archivelog;
SQL> alter databasearchivelog;
Database altered.
9.启动数据库(此时数据库可用) alter databaseopen;
SQL> alter database open;
Database altered.
SQL>
10.连接到rman: host rman target /
SQL> host rman target/
Recovery Manager: Release 10.2.0.4.0 - Production on Fri Sep 28 15:46:40 2012
Copyright (c) 1982, 2007, Oracle. All rights reserved.
connected to target database: PORTAL (DBID=4144397491)
RMAN>
11.配置rman:
RMAN>CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS;
RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON;
RMAN> CONFIGURE BACKUP OPTIMIZATION ON;
RMAN> CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICETYPE DISK TO '/export/db/oracle/oradata/RMAN/cro_%F';
12.运行以下脚本全数据库备份级别0:
RUN{
ALLOCATE CHANNEL C1 TYPE DISK;
ALLOCATE CHANNEL C2 TYPE DISK;
ALLOCATE CHANNEL C3 TYPE DISK;
BACKUP FILESPERSET 1 INCREMENTAL LEVEL 0 TAG 'LEV0' FORMAT'/export/db/oracle/oradata/RMAN/lev0%u_%s_%p'
DATABASE SKIP INACCESSIBLE PLUS ARCHIVELOG FORMAT'/export/db/oracle/oradata/RMAN/arch%u_%s_%p' DELETE INPUT;
RELEASE CHANNEL C1;
RELEASE CHANNEL C2;
RELEASE CHANNEL C3;
DELETE NOPROMPT OBSOLETE;
}
13.运行以下脚本增量累积数据库备份级别0:
RUN{
ALLOCATE CHANNEL C1 TYPE DISK;
ALLOCATE CHANNEL C2 TYPE DISK;
ALLOCATE CHANNEL C3 TYPE DISK;
BACKUP FILESPERSET 1 INCREMENTAL LEVEL 1 CUMULATIVE TAG'LEV1' CUMULATIVE FORMAT '/export/db/oracle/oradata/RMAN/lev1%u_%s_%p'
DATABASE SKIP INACCESSIBLE PLUS ARCHIVELOG FORMAT'/export/db/oracle/oradata/RMAN/arch%u_%s_%p' DELETE INPUT;
RELEASE CHANNEL C1;
RELEASE CHANNEL C2;
RELEASE CHANNEL C3;
DELETE NOPROMPT OBSOLETE;
}
备份完毕。
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