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本篇内容主要讲解“Oracle19c rman使用简单测试分析”,感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷,实用性强。下面就让小编来带大家学习“Oracle19c rman使用简单测试分析”吧!
PDB 支持 资料库
--连接示例 connect target "sbu @prod AS SYSBACKUP"
自动删除闪回日志
--默认1440分钟/一天,19c开始超过自动清理 db_flashback_retention_target
复制一个pdb到另一个存在的cdb中
复制数据库到Oracle云
前滚物理备库,简化使用
RMAN备份可以用迁移,pdb、cdb切换
块丢失写保护增强
connect target / run { allocate channel ch2 type disk; allocate channel ch3 type disk; alter system archive log current; alter system archive log current; backup format '/backup/mypdb_full_%T_%s_%p' database plus archivelog delete all input; backup format '/backup/mypdb_controlfile_%T_%s_%p' current controlfile; alter system archive log current; backup format '/backup/mypdb_arch_%Y%M%D_%s_%p' archivelog all; release channel ch2; release channel ch3; }
全备备份的数据文件参考
--其中数据文件2,5,6是pdb模板 col file_name for a50 select file_id,file_name,tablespace_name from cdb_data_files order by file_id;
--更相信命令,参考全备 BACKUP PLUGGABLE DATABASE mypdb; --or [oracle@node216 ~]$ rman target sys/oracle@mypdb Recovery Manager: Release 19.0.0.0.0 - Production on Fri Feb 14 21:57:32 2020 Version 19.3.0.0.0 Copyright (c) 1982, 2019, Oracle and/or its affiliates. All rights reserved. connected to target database: MYDB19C:MYPDB (DBID=2219134196) RMAN> backup database;
--备份root+pdbseed 建议一起备份 run { allocate channel ch2 type disk; allocate channel ch3 type disk; alter system archive log current; alter system archive log current; backup format '/backup/root_full_%T_%s_%p' database root plus archivelog delete all input; backup format '/backup/pdbseed_full_%T_%s_%p' database 'PDB$SEED'; backup format '/backup/root_controlfile_%T_%s_%p' current controlfile; alter system archive log current; backup format '/backup/root_arch_%Y%M%D_%s_%p' archivelog all; release channel ch2; release channel ch3; }
--恢复root+pdbseed ,也可单独恢复 restore controlfile from '/backup/root_controlfile_20200215_62_1'; alter database mount; run { restore database root; restore database 'pdb$seed'; recover database root; recover database 'pdb$seed'; } --跳过pdb 数据库,open alter session set container=mypdb; col name for a50 select file#,name,status from v$datafile; alter database datafile 9,10,11,12,13 offline; alter database open resetlogs; --恢复pdb col pdb_name for a20 select pdb_name,status from dba_pdbs; restore pluggable database mypdb; recover pluggable database mypdb; alter session set container=mypdb; alter database datafile 9,10,11,12,13 online; alter database open; --or alter session set container="CDB$ROOT"; alter pluggable database mypdb open;
--备份 BACKUP format '/backup/testpdb_full_%T_%s_%p' PLUGGABLE DATABASE testpdb PLUS ARCHIVELOG; --卸载/导出 pdb sqlplus / as sysdba alter pluggable database testpdb unplug into '/home/oracle/testpdb.xml'; --删除pdb,迁移可不删除,注意不能删除数据文件 drop pluggable database testpdb keep datafiles; --检查目标cdb,是否适用 备份的pdb SET SERVEROUTPUT ON DECLARE compatible CONSTANT VARCHAR2(3) := CASE DBMS_PDB.CHECK_PLUG_COMPATIBILITY( pdb_descr_file => '/home/oracle/testpdb.xml') WHEN TRUE THEN 'YES' ELSE 'NO' END; BEGIN DBMS_OUTPUT.PUT_LINE(compatible); END; / --创建pdb create pluggable database testpdb using '/home/oracle/testpdb.xml' --nocopy tempfile reuse; FILE_NAME_CONVERT=('/u01/app/oracle/oradata/MYDB19C/pdbseed/', '/u01/app/oracle/oradata/testpdb'); --open alter pluggable database testpdb open; --恢复,手动删除原有数据文件,可不删除,直接恢复 SET PREPLUGIN CONTAINER=testpdb; LIST PREPLUGIN BACKUP OF PLUGGABLE DATABASE testpdb; --恢复 RESTORE PLUGGABLE DATABASE testpdb FROM PREPLUGIN; RECOVER PLUGGABLE DATABASE testpdb FROM PREPLUGIN; catalog preplugin archivelog '/u01/app/oracle_base/oradata/CDB18/arch/1_26_969723966.dbf'; --检查 RESTORE PLUGGABLE DATABASE testpdb SKIP PREPLUGIN; --open RECOVER PLUGGABLE DATABASE testpdb; ALTER PLUGGABLE DATABASE testpdb open; --or rman target sys/oracle@testpdb recover database;
Only active database duplication is supported.
Only the following clauses of the DUPLICATE command are supported: NORESUME,
DB_FILE_NAME_CONVERT, SECTION SIZE, and USING COMPRESSED BACKUPSET
The following clauses of the DUPLICATE command are not supported: SPFILE, NO
STANDBY, FARSYNC STANDBY, and LOG_FILE_NAME_CONVERT.
Duplicating a PDB to a CDB that is a standby database is not supported
Only one PDB can be duplicated at a time.
Partial PDB duplication is not supported, only complete PDB duplication is
supported. For example, you cannot include or exclude specific tablespaces while
duplicating a PDB
Duplicating a non-CDB as a PDB in an existing CDB is not supported.
Duplicating PDBs that contain TDE-encrypted tablespaces is not supported.
--配置网络 MYDB19C = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = node216)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = mydb19c) ) ) TESTCDB = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = node217)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = testcdb) ) ) --创建相关目录,目标端 mkdir -p /u01/app/oracle/oradata/TESTCDB/mystpdb --临时存放归档等 mkdir -p /backup/mystpdb alter system set remote_recovery_file_dest='/backup/mystpdb'; --连接 rman target sys/oracle@mydb19c auxiliary sys/oracle@testcdb --开始复制 DUPLICATE PLUGGABLE DATABASE mypdb AS mystpdb TO testcdb FROM ACTIVE DATABASE DB_FILE_NAME_CONVERT='/u01/app/oracle/oradata/mypdb','/u01/app/oracle/oradata/TESTCDB/mystpdb'; --会自动导入相关元数据
复制大概过程
恢复数据文件:restore complete of datafile 14 to datafile copy
创建pdb
CREATE PLUGGABLE DATABASE mystpdb AS CLONE USING '/u01/app/oracle/product/19.0.0/dbhome_1/dbs/_rm_pdb_pitr_1_testcdb.xml' SOURCE_FILE_NAME_CONVERT = ( '/u01/app/oracle/oradata/mypdb/mypdp_system01.dbf' , '/u01/app/oracle/oradata/TESTCDB/mystpdb/mypdp_system01.dbf') NOCOPY REFRESH MODE MANUAL;
拷贝归档至目标端,并应用,增量/不完成恢复完成
调整数据文件号:删除之前,根据新环境整理新的file_id
open pdb
--源端设置用户权限 alter session set container=mypdb; grant create pluggable database to mypdb; --目标端创建dblink create database link clonePdb connect to mypdb identified by mypdb using '(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.80.216)(PORT = 1521))(CONNECT_DATA =(SERVER = DEDICATED)(SERVICE_NAME = mypdb)))'; --开始创建,与Duplicating 处理过程相似 create pluggable database pdb8 from mypdb@clonePdb FILE_NAME_CONVERT=('/u01/app/oracle/oradata/mypdb','/u01/app/oracle/oradata/TESTCDB/pdb8');
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