--RMAN恢复测试实战
 
RMAN> list backup;
 
using target database control file instead of recovery catalog
 
List of Backup Sets
===================
 
 
BS Key  Type LV Size       Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
1       Full    964.65M    DISK        00:02:07     19-SEP-13     
        BP Key: 1   Status: AVAILABLE  Compressed: NO  Tag: TAG20130919T011640
        Piece Name: /u01/app/oracle/flash_recovery_area/august/AUGUST/backupset/2013_09_19/o1_mf_nnndf_TAG20130919T011640_93odqb65_.bkp
  List of Datafiles in backup set 1
  File LV Type Ckp SCN    Ckp Time  Name
  ---- -- ---- ---------- --------- ----
  1       Full 838482     19-SEP-13 /u01/app/oracle/oradata/august/august/system01.dbf
  2       Full 838482     19-SEP-13 /u01/app/oracle/oradata/august/august/sysaux01.dbf
  3       Full 838482     19-SEP-13 /u01/app/oracle/oradata/august/august/undotbs01.dbf
  4       Full 838482     19-SEP-13 /u01/app/oracle/oradata/august/august/users01.dbf
 
BS Key  Type LV Size       Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
2       Full    9.36M      DISK        00:00:08     19-SEP-13     
        BP Key: 2   Status: AVAILABLE  Compressed: NO  Tag: TAG20130919T011640
        Piece Name: /u01/app/oracle/flash_recovery_area/august/AUGUST/backupset/2013_09_19/o1_mf_ncsnf_TAG20130919T011640_93odvkkc_.bkp
  SPFILE Included: Modification time: 19-SEP-13
  SPFILE db_unique_name: AUGUST
  Control File Included: Ckp SCN: 838535       Ckp time: 19-SEP-13
 
2. 归档当前日志
 
SQL> alter system switch logfile;
 
SQL> select sequence#,first_change#,next_change# ,archived from v$archived_log;
 
 SEQUENCE# FIRST_CHANGE# NEXT_CHANGE# ARCHIV
---------- ------------- ------------ ------
         2        757280       767227 YES
         3        767227       780016 YES
         4        780016       811911 YES
         5        811911       835483 YES
         6        835483       840784 YES
 
3. 在新的日志文件中，进行DML操作。
 
SQL> create table scott.rman_test1(id int,name char(10));
SQL> select * from scott.rman_test1;
 
        ID NAME
---------- --------------------
         1 log1
         1 log1
         1 log1
         1 log1
         1 log1
         1 log1
 
将表scott.rman_test1操作日志归档。
 
SQL> alter system switch logfile;
SQL> select sequence#,first_change#,next_change# from v$archived_log;
 
SEQUENCE# FIRST_CHANGE# NEXT_CHANGE#
---------- ------------- ------------
......
         6        835483       840784
         7        840784       841197
 
在新的日志中，进行scott.rman_test2的创建，不对此日志归档，log sequence 8.
 
SQL> create table scott.rman_test2 as select table_name from user_tables;
 
此时在线日志8中有rman_test2,归档日志7中有rman_test1.
 
 
4. 使用rman进行不完整恢复到归档日志7.
 
注：rman restore操作需要在mount下进行，不然会报错。
 
RMAN> restore database;
 
Starting restore at 19-SEP-13
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=44 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 00001 to /u01/app/oracle/oradata/august/august/system01.dbf
channel ORA_DISK_1: restoring datafile 00002 to /u01/app/oracle/oradata/august/august/sysaux01.dbf
channel ORA_DISK_1: restoring datafile 00003 to /u01/app/oracle/oradata/august/august/undotbs01.dbf
channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/august/august/users01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/flash_recovery_area/august/AUGUST/backupset/2013_09_19/o1_mf_nnndf_TAG20130919T011640_93odqb65_.bkp
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 09/19/2013 20:38:42
ORA-19870: error while restoring backup piece /u01/app/oracle/flash_recovery_area/august/AUGUST/backupset/2013_09_19/o1_mf_nnndf_TAG20130919T011640_93odqb65_.bkp
ORA-19573: cannot obtain exclusive enqueue for datafile 1
 
关闭数据库，启动到mount
 
RMAN> shutdown immediate                     /*RMAN下可以进行shutdown, startup命令*/
 
database closed
database dismounted
Oracle instance shut down
 
RMAN> startup mount;
 
connected to target database (not started)
Oracle instance started
database mounted
 
Total System Global Area     422670336 bytes
Fixed Size                     1336960 bytes
Variable Size                322963840 bytes
Database Buffers              92274688 bytes
Redo Buffers                   6094848 bytes
 
查看备份集信息
RMAN> list backup summary;
 
List of Backups
===============
Key     TY LV S Device Type Completion Time #Pieces #Copies Compressed Tag
------- -- -- - ----------- --------------- ------- ------- ---------- ---
1       B  F  A DISK        19-SEP-13       1       1       NO         TAG20130919T011640
2       B  F  A DISK        19-SEP-13       1       1       NO         TAG20130919T011640
 
 
恢复备份文件
 
-rw-r-----. 1 Oracle oinstall    9830400 Sep 19 01:18 o1_mf_ncsnf_TAG20130919T011640_93odvkkc_.bkp
-rw-r-----. 1 Oracle oinstall 1011515392 Sep 19 01:18 o1_mf_nnndf_TAG20130919T011640_93odqb65_.bkp
 
RMAN> restore database;
 
Starting restore at 19-SEP-13
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=19 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 00001 to /u01/app/oracle/oradata/august/august/system01.dbf
channel ORA_DISK_1: restoring datafile 00002 to /u01/app/oracle/oradata/august/august/sysaux01.dbf
channel ORA_DISK_1: restoring datafile 00003 to /u01/app/oracle/oradata/august/august/undotbs01.dbf
channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/august/august/users01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/flash_recovery_area/august/AUGUST/backupset/2013_09_19/o1_mf_nnndf_TAG20130919T011640_93odqb65_.bkp
channel ORA_DISK_1: piece handle=/u01/app/oracle/flash_recovery_area/august/AUGUST/backupset/2013_09_19/o1_mf_nnndf_TAG20130919T011640_93odqb65_.bkp tag=TAG20130919T011640
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:03:45
Finished restore at 19-SEP-13
 
介质恢复（相当于db2中的前滚操作）
 
RMAN> recover database until;
 
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-00558: error encountered while parsing input commands
RMAN-01009: syntax error: found ";": expecting one of: "scn, sequence, time"
RMAN-01007: at line 1 column 23 file: standard input
 
可以看出RMAN中recover database until 后面可以按三种方式前滚(SCN,SEQUENCE,TIME).
 
这里我们按照sequence方式恢复（前滚）。
 
查看归档日志情况。
 
RMAN> list archivelog all;
 
List of Archived Log Copies for database with db_unique_name AUGUST
=====================================================================
 
Key     Thrd Seq     S Low Time
------- ---- ------- - ---------
1       1    2       A 15-SEP-13
        Name: /u01/app/oracle/flash_recovery_area/august/AUGUST/archivelog/2013_09_15/o1_mf_1_2_93cc8thy_.arc
 
2       1    3       A 15-SEP-13
        Name: /u01/app/oracle/flash_recovery_area/august/AUGUST/archivelog/2013_09_15/o1_mf_1_3_93ck0mxm_.arc
 
3       1    4       A 15-SEP-13
        Name: /u01/app/oracle/flash_recovery_area/august/AUGUST/archivelog/2013_09_16/o1_mf_1_4_93ftwxqj_.arc
 
4       1    5       A 16-SEP-13
        Name: /u01/app/oracle/flash_recovery_area/august/AUGUST/archivelog/2013_09_19/o1_mf_1_5_93o9xt7k_.arc
 
5       1    6       A 19-SEP-13
        Name: /u01/app/oracle/flash_recovery_area/august/AUGUST/archivelog/2013_09_19/o1_mf_1_6_93qgls17_.arc
 
6       1    7       A 19-SEP-13
        Name: /u01/app/oracle/flash_recovery_area/august/AUGUST/archivelog/2013_09_19/o1_mf_1_7_93qh7sqx_.arc
 
 
RMAN> recover database until sequence 7;
 
Starting recover at 19-SEP-13
using channel ORA_DISK_1
 
starting media recovery
 
archived log for thread 1 with sequence 6 is already on disk as file /u01/app/oracle/flash_recovery_area/august/AUGUST/archivelog/2013_09_19/o1_mf_1_6_93qgls17_.arc
archived log file name=/u01/app/oracle/flash_recovery_area/august/AUGUST/archivelog/2013_09_19/o1_mf_1_6_93qgls17_.arc thread=1 sequence=6
media recovery complete, elapsed time: 00:00:06
Finished recover at 19-SEP-13
 
/*好像只恢复到log 7就停止了*/
 
RMAN> recover database until sequence 8;
 
Starting recover at 19-SEP-13
using channel ORA_DISK_1
 
starting media recovery
 
archived log for thread 1 with sequence 7 is already on disk as file /u01/app/oracle/flash_recovery_area/august/AUGUST/archivelog/2013_09_19/o1_mf_1_7_93qh7sqx_.arc
archived log file name=/u01/app/oracle/flash_recovery_area/august/AUGUST/archivelog/2013_09_19/o1_mf_1_7_93qh7sqx_.arc thread=1 sequence=7
media recovery complete, elapsed time: 00:00:01
Finished recover at 19-SEP-13
 
/*看来需要指定到需要日志的下一个sequence*/
 
察看当前日志情况。
 
SQL> select sequence#,archived,status,first_change#,next_change# from v$log;
 
 SEQUENCE# ARCHIV STATUS                           FIRST_CHANGE# NEXT_CHANGE#
---------- ------ -------------------------------- ------------- ------------
         7 YES    INACTIVE                                840784       841197
         6 YES    INACTIVE                                835483       840784
         8 NO     CURRENT                                 841197   2.8147E+14
 
我们采用不完全恢复，不应用8号日志，直接打开数据库。
 
RMAN> alter database open resetlogs;
 
database opened
 
数据库完成恢复，由于是resetlogs模式打开的，查看当前日志状态。
SQL> select sequence#,archived,status,first_change#,next_change# from v$log;
 
 SEQUENCE# ARCHIV STATUS                           FIRST_CHANGE# NEXT_CHANGE#
---------- ------ -------------------------------- ------------- ------------
         1 NO     CURRENT                                 841198   2.8147E+14
         0 YES    UNUSED                                       0            0
         0 YES    UNUSED                                       0            0
 
日志被reset从1号开始了。
 
看到恢复后的用户表情况。
 
SQL> select table_name from user_tables;
 
TABLE_NAME
------------------------------------------------------------
RMAN_TEST1
T_C
T_P
SALGRADE
BONUS
EMP
DEPT
 
看到RMAN_TEST1表已经被恢复回来了。但是里面没有数据，因为我们之前并没有commit这个插入。
 
 
 
 

RMAN基础恢复测试的更多相关文章

  1. RMAN数据库恢复测试

    RMAN恢复实践   RMAN> list backup; using target database control file instead of recovery catalog List ...

  2. RMAN备份介质的移动与再恢复测试 [ catalog start with ‘dir’ ]

    --RMAN备份介质的移动与再恢复测试 ---------------------------------------------------------2013/09/21   由于目前生产环境中没 ...

  3. 使用zfs进行pg的pitr恢复测试

    前段时间做了一下zfs做pg的增量恢复测试,mark一下. 服务器信息: 主机:192.168.173.43 备机:192.168.173.41 主备使用流复制搭建,在备机上面进行了zfs快照备份. ...

  4. OCP读书笔记(7) - 使用RMAN执行恢复

    7.Using RMAN to Perform Recovery 使用RMAN进行完全恢复system表空间文件丢失的恢复 模拟损坏: SQL> conn /as sysdba; SQL> ...

  5. RMAN的恢复篇

    Oracle 数据库的恢复实际上包含了两个概念:数据库修复(RESTORE)与数据库恢复(RECOVER): 数据库修复:是指利用备份的数据库文件来替换已经损坏的数据库文件或者将其恢复到一个新的位置. ...

  6. Oracle RMAN备份恢复指导书

    目 录 1 目的与范围... 1 2 术语和定义... 1 3 角色和职责... 2 4 使用RMAN备份数据库... 2 4.1.1 检查数据库模式... 2 4.1.2 连接到target数据库. ...

  7. RMAN数据库恢复 之归档模式有(无)备份-丢失数据文件的恢复

    1.归档模式有备份,丢失数据文件的恢复归档模式有备份,不管丢失什么数据文件,直接在RMAN下RESTOER--->RECOVER--->OPEN即可. RMAN> STARUP MO ...

  8. 一个简单的binlog恢复测试

    日常的数据备份及恢复测试,是DBA工作重中之重的事情,所以要做好备份及测试,日常的备份常见有mysqldump+binlog备份.xtrabackup+binlog备份,无论那一种,几乎都少不了对bi ...

  9. rman备份恢复命令之switch

    rman备份恢复命令之switch 一 switch 命令 1 switch命令用途 更新数据文件名为rman下镜像拷贝时指定的数据文件名 更新数据文件名为 set newname 命令指定的名字. ...

随机推荐

  1. EXT 结构解析

    EXT Demo 结构解析 创建项目 sencha -sdk F:\lib\ext-6.0.0 generate app demo F:\demo 预览项目 执行命令 sencha app build ...

  2. Spring事务管理的两种方式

    参考文档: http://www.iteye.com/topic/1123347 http://blog.csdn.net/lcj8/article/details/2835432 PS:好像还是tx ...

  3. c++数组易错点总结

    c++数组 1.只有在定义数组是才能使用初始化,此后就不能使用了,也不能将一个数组赋给另一个数组 int cards[4] = { 3 , 6 , 8 , 10}; //ok int hands[4] ...

  4. Redis配置文件redis.conf参数配置详解

    ########################################## 常规 ########################################## daemonize n ...

  5. Asp.net管理信息系统中数据统计功能的实现

    数据统计是每个系统中必备的功能,在给领导汇报统计数据,工作中需要的进展数据时非常有用. 在我看来,一个统计的模块应该实现以下功能: 能够将常用的查询的统计结果显示出来: 显示的结果可以是表格形式,也可 ...

  6. Spring Boot 系列（三）属性配置&自定义属性配置

    在使用spring boot过程中,可以发现项目中只需要极少的配置就能完成相应的功能,这归功于spring boot中的模块化配置,在pom.xml中依赖的每个Starter都有默认配置,而这些默认配 ...

  7. CONSOLE_SCREEN_BUFFER_INFO 结构体

    CONSOLE_SCREEN_BUFFER_INFO结构体 来源:https://msdn.microsoft.com/en-us/library/ms682093(v=vs.85).aspx 作用 ...

  8. plsql修改表字段alter

    场景:在生产过程中有时候需要不同的环境中修改表字段,使用sql语句比较方便! 1 演示 --添加字段的语法 alter table tablename add (column datatype [de ...

  9. 【PHP】基础学习

    摘要: 基础知识回顾 1)数组 2)字符串 3)时间 一.数组 1.1 数组分类索引数组:常规数组关联数组:键值对数组 二.字符串 2.1 定义字符串heredoc语法结构定义的字符串:$hello ...

  10. margin属性的正负值确定

    margin属性用来使用设置外边距,大多数情况使用正值,但是一些稍复杂的定位就会使用到负值,所以对margin属性的正负值理解是有必要的,本文同时解释了margin-right和margin-bott ...