A-A+

增量备份恢复的一个小例子

2013年05月22日 Backup&Recovery 暂无评论 阅读 1,320 次

背景:一个项目需要恢复一个库做测试,之前有源库的增量备份(0+1+2级),时间窗口只有5H,测试的时候发现恢复一个0级全备需要3H,再加一些其他操作,时间窗口内完成测试较为紧张。一个同事提出说在进行2级增量恢复的时候,数据库会从之前所有可用的0级+2级+1级全部从头来一遍,这样就会花费一个0级恢复的时间,理论上增量备份恢复应该是很智能的,没有这么笨,遂有下边的这个小测试,就是事先将0级restore,等到时间窗口时再recover 2级,这样时间就会腾出来。

增量备份恢复测试
顺序 增量级别 数据时间点
1 0 2013/05/21 18:38:54
2 2 2013/05/21 18:45:15
3 1 2013/05/21 18:51:15
4 2 2013/05/21 18:57:55

恢复顺序
1、恢复0级增量备份(restore+recover)
2、恢复第一个2级(即顺序号为2)的控制文件,恢复数据库(recover)

验证的结果:
在进行2级recover的时候,只应用2级的增量备份的文件,不会再次应用之前的0级备份文件。

**************************************************以下为测试过程**************************************************

数据库版本

SQL> select * from v$version;

BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
CORE    10.2.0.1.0      Production
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production

建测试数据

SQL> create tablespace yallonking datafile '/u01/app/oracle/oradata/ora10gr2/yallonking01.dbf' size 1m;

Tablespace created.

SQL> create user yallonking identified by yallonking default tablespace yallonking quota unlimited on yallonking;

User created.

SQL> grant dba to yallonking
  2  ;

Grant succeeded.

SQL> conn yallonking/yallonking
Connected.
SQL> create table yallonking (id number,name varchar2(20),my_date date);

Table created.

SQL> insert into yallonking values (1,'0',sysdate);

1 row created.

SQL> commit;   

Commit complete.

SQL> alter session set nls_date_format='yyyy/mm/dd hh24:mi:ss';

Session altered.

SQL> select * from yallonking;

        ID NAME                 MY_DATE
---------- -------------------- -------------------
         1 0                    2013/05/21 18:38:54		 

进行0级增量备份

[oracle@ora10gr2 ~]$ rman target / 

Recovery Manager: Release 10.2.0.1.0 - Production on Tue May 21 18:42:31 2013

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database: ORA10GR2 (DBID=4093928674)

RMAN> run {
2> allocate channel c1 type disk;
3> allocate channel c2 type disk;
4> backup 
5>   incremental level 0
6>      skip inaccessible filesperset 5 
7>        Database format='/tmp/orcl_lev0_%U_%T' tag='orcl_lev0' ;
8> sql 'alter system archive log current';
9> backup format '/tmp/arch_%s_%p_%t.bak'
10>   filesperset 5
11>     archivelog all delete input skip inaccessible;
12> backup current controlfile tag='bak_ctlfile' format='/tmp/ctl_file_%U_%T';
13> backup spfile tag='spfile' format='/tmp/ORCL_spfile_%U_%T';
14> release channel c1;
15> release channel c2;
16> }

using target database control file instead of recovery catalog
allocated channel: c1
channel c1: sid=145 devtype=DISK
... ...
channel c1: backup set complete, elapsed time: 00:00:01
Finished backup at 21-MAY-13

released channel: c1

released channel: c2

RMAN> exit


Recovery Manager complete.

插入2级增量的测试数据

SQL> insert into yallonking values (2,'2',sysdate);

1 row created.

SQL> commit;

Commit complete.

SQL> alter system archive log current;

System altered.

SQL> /     

System altered.

SQL> alter system switch logfile;

System altered.

SQL> /

System altered.

SQL> /

System altered.

SQL> alter system archive log current;

System altered.

SQL> select * from yallonking;

        ID NAME                 MY_DATE
---------- -------------------- -------------------
         1 0                    2013/05/21 18:38:54
         2 2                    2013/05/21 18:45:15

进行2级增量备份

[oracle@ora10gr2 ~]$ rman target / 

Recovery Manager: Release 10.2.0.1.0 - Production on Tue May 21 18:45:44 2013

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database: ORA10GR2 (DBID=4093928674)

RMAN> run {
2> allocate channel c1 type disk;
3> allocate channel c2 type disk;
4> backup 
5>   incremental level 2
6>      skip inaccessible filesperset 5 
7>        Database format='/tmp/orcl_lev2_%U_%T' tag='orcl_lev2' ;
8> sql 'alter system archive log current';
9> backup format '/tmp/arch_%s_%p_%t.bak'
10>   filesperset 5
11>     archivelog all delete input skip inaccessible;
12> backup current controlfile tag='bak_ctlfile' format='/tmp/ctl_file_%U_%T_level2';
13> backup spfile tag='spfile' format='/tmp/ORCL_spfile_%U_%T';
14> release channel c1;
15> release channel c2;
16> }

using target database control file instead of recovery catalog
allocated channel: c1
channel c1: sid=141 devtype=DISK
... ...
released channel: c1

released channel: c2

RMAN> exit


Recovery Manager complete.

插入1级增量的测试数据

SQL> insert into yallonking values (3,'1',sysdate);

1 row created.

SQL> commit;

Commit complete.

SQL> alter system archive log current;

System altered.

SQL> /

System altered.

SQL> alter system switch logfile;

System altered.

SQL> /

System altered.

SQL> /

System altered.

SQL> alter system archive log current;

System altered.

SQL> /

System altered.

SQL> alter system switch logfile;

System altered.

SQL> /

System altered.

SQL> select * from yallonking;

        ID NAME                 MY_DATE
---------- -------------------- -------------------
         1 0                    2013/05/21 18:38:54
         2 2                    2013/05/21 18:45:15
         3 1                    2013/05/21 18:51:15

备份1级增量数据库

RMAN> run {
2> allocate channel c1 type disk;
3> allocate channel c2 type disk;
4> backup 
5>   incremental level 1
6>      skip inaccessible filesperset 5 
7>        Database format='/tmp/orcl_lev1_%U_%T' tag='orcl_lev1' ;
8> sql 'alter system archive log current';
9> backup format '/tmp/arch_%s_%p_%t.bak'
10>   filesperset 5
11>     archivelog all delete input skip inaccessible;
12> backup current controlfile tag='bak_ctlfile' format='/tmp/ctl_file_%U_%T_level1';
13> backup spfile tag='spfile' format='/tmp/ORCL_spfile_%U_%T';
14> release channel c1;
15> release channel c2;
16> }

released channel: ORA_DISK_1
allocated channel: c1
channel c1: sid=148 devtype=DISK
... ...
Finished backup at 21-MAY-13

released channel: c1

released channel: c2

RMAN> exit


Recovery Manager complete.

再次插入2级增量的测试数据

SQL> insert into yallonking values (4,'2',sysdate);

1 row created.

SQL> commit;

Commit complete.

SQL> alter system archive log current;

System altered.

SQL> alter system switch logfile;

System altered.

SQL> /

System altered.

SQL> /

System altered.

SQL> alter system archive log current;

System altered.

SQL> alter system switch logfile;

System altered.

SQL> /

System altered.

SQL> alter system archive log current;

System altered.

SQL> select * from yallonking;

        ID NAME                 MY_DATE
---------- -------------------- -------------------
         1 0                    2013/05/21 18:38:54
         2 2                    2013/05/21 18:45:15
         3 1                    2013/05/21 18:51:15
         4 2                    2013/05/21 18:57:55

备份2级增量数据库

[oracle@ora10gr2 ~]$ rman target / 

Recovery Manager: Release 10.2.0.1.0 - Production on Tue May 21 19:01:01 2013

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database: ORA10GR2 (DBID=4093928674)

RMAN> run {
2> allocate channel c1 type disk;
3> allocate channel c2 type disk;
4> backup 
5>   incremental level 2
6>      skip inaccessible filesperset 5 
7>        Database format='/tmp/orcl_lev2_%U_%T' tag='orcl_lev2' ;
8> sql 'alter system archive log current';
9> backup format '/tmp/arch_%s_%p_%t.bak'
10>   filesperset 5
11>     archivelog all delete input skip inaccessible;
12> backup current controlfile tag='bak_ctlfile' format='/tmp/ctl_file_%U_%T_level2';
13> backup spfile tag='spfile' format='/tmp/ORCL_spfile_%U_%T';
14> release channel c1;
15> release channel c2;
16> }

using target database control file instead of recovery catalog
allocated channel: c1
channel c1: sid=154 devtype=DISK
... ...
Finished backup at 21-MAY-13

released channel: c1

released channel: c2

RMAN> exit


Recovery Manager complete.

以下开始恢复测试
删除所有数据文件

SQL> select name from v$datafile;

NAME
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/ora10gr2/system01.dbf
/u01/app/oracle/oradata/ora10gr2/undotbs01.dbf
/u01/app/oracle/oradata/ora10gr2/sysaux01.dbf
/u01/app/oracle/oradata/ora10gr2/users01.dbf
/u01/app/oracle/oradata/ora10gr2/test01.dbf
/u01/app/oracle/oradata/ora10gr2/ogg01.dbf
/u01/app/oracle/oradata/ora10gr2/yallonking01.dbf

7 rows selected.

[oracle@ora10gr2 ~]$ cd /u01/app/oracle/oradata/ora10gr2/
[oracle@ora10gr2 ora10gr2]$ rm -rf *

开始恢复在时间2013/05/21 18:38:54的0级增量备份
再恢复第一个2级备份(即2013/05/21 18:45:15时间点的数据)

[oracle@ora10gr2 ora10gr2]$ ps -ef | grep pmon| grep -v grep
oracle    9422     1  0 20:25 ?        00:00:00 ora_pmon_ora10gr2
[oracle@ora10gr2 ora10gr2]$ kill -9 9422
[oracle@ora10gr2 ora10gr2]$ rman target /

Recovery Manager: Release 10.2.0.1.0 - Production on Tue May 21 20:23:08 2013

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database (not started)

RMAN> set DBID=4093928674

executing command: SET DBID

RMAN> startup nomount;

Oracle instance started

Total System Global Area     608174080 bytes

Fixed Size                     1220844 bytes
Variable Size                205524756 bytes
Database Buffers             398458880 bytes
Redo Buffers                   2969600 bytes

RMAN> restore controlfile from '/tmp/ctl_file_0coa77bl_1_1_20130521';	--此处是0级的控制文件的备份

Starting restore at 21-MAY-13
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK

channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
output filename=/u01/app/oracle/oradata/ora10gr2/control01.ctl
output filename=/u01/app/oracle/oradata/ora10gr2/control02.ctl
output filename=/u01/app/oracle/oradata/ora10gr2/control03.ctl
Finished restore at 21-MAY-13

RMAN> startup mount;

database is already started
database mounted
released channel: ORA_DISK_1

RMAN> restore database;

Starting restore at 21-MAY-13
Starting implicit crosscheck backup at 21-MAY-13
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK
Crosschecked 11 objects
Finished implicit crosscheck backup at 21-MAY-13

Starting implicit crosscheck copy at 21-MAY-13
using channel ORA_DISK_1
Finished implicit crosscheck copy at 21-MAY-13

searching for all files in the recovery area
cataloging files...
no files cataloged

using channel ORA_DISK_1

channel ORA_DISK_1: starting datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
restoring datafile 00001 to /u01/app/oracle/oradata/ora10gr2/system01.dbf
restoring datafile 00004 to /u01/app/oracle/oradata/ora10gr2/users01.dbf
restoring datafile 00007 to /u01/app/oracle/oradata/ora10gr2/yallonking01.dbf
channel ORA_DISK_1: reading from backup piece /tmp/orcl_lev0_01oa7792_1_1_20130521
channel ORA_DISK_1: restored backup piece 1
piece handle=/tmp/orcl_lev0_01oa7792_1_1_20130521 tag=ORCL_LEV0
channel ORA_DISK_1: restore complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
restoring datafile 00002 to /u01/app/oracle/oradata/ora10gr2/undotbs01.dbf
restoring datafile 00003 to /u01/app/oracle/oradata/ora10gr2/sysaux01.dbf
restoring datafile 00005 to /u01/app/oracle/oradata/ora10gr2/test01.dbf
restoring datafile 00006 to /u01/app/oracle/oradata/ora10gr2/ogg01.dbf
channel ORA_DISK_1: reading from backup piece /tmp/orcl_lev0_02oa7792_1_1_20130521
channel ORA_DISK_1: restored backup piece 1
piece handle=/tmp/orcl_lev0_02oa7792_1_1_20130521 tag=ORCL_LEV0
channel ORA_DISK_1: restore complete, elapsed time: 00:00:15
Finished restore at 21-MAY-13

RMAN> recover database;

Starting recover at 21-MAY-13
using channel ORA_DISK_1

starting media recovery

channel ORA_DISK_1: starting archive log restore to default destination
channel ORA_DISK_1: restoring archive log
archive log thread=1 sequence=29
channel ORA_DISK_1: restoring archive log
archive log thread=1 sequence=30
channel ORA_DISK_1: reading from backup piece /tmp/arch_7_1_816029040.bak
channel ORA_DISK_1: restored backup piece 1
piece handle=/tmp/arch_7_1_816029040.bak tag=TAG20130521T184350
channel ORA_DISK_1: restore complete, elapsed time: 00:00:03
archive log filename=/u01/app/oracle/flash_recovery_area/ORA10GR2/archivelog/2013_05_21/o1_mf_1_29_8srgo72y_.arc thread=1 sequence=29
channel default: deleting archive log(s)
archive log filename=/u01/app/oracle/flash_recovery_area/ORA10GR2/archivelog/2013_05_21/o1_mf_1_29_8srgo72y_.arc recid=60 stamp=816035128
archive log filename=/u01/app/oracle/flash_recovery_area/ORA10GR2/archivelog/2013_05_21/o1_mf_1_30_8srgo76j_.arc thread=1 sequence=30
channel default: deleting archive log(s)
archive log filename=/u01/app/oracle/flash_recovery_area/ORA10GR2/archivelog/2013_05_21/o1_mf_1_30_8srgo76j_.arc recid=59 stamp=816035127
unable to find archive log
archive log thread=1 sequence=31
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 05/21/2013 20:25:32
RMAN-06054: media recovery requesting unknown log: thread 1 seq 31 lowscn 500800

RMAN> shutdown immediate

database dismounted
Oracle instance shut down

RMAN> startup nomount;

connected to target database (not started)
Oracle instance started

Total System Global Area     608174080 bytes

Fixed Size                     1220844 bytes
Variable Size                205524756 bytes
Database Buffers             398458880 bytes
Redo Buffers                   2969600 bytes

RMAN> restore controlfile from '/tmp/ctl_file_0toa77kj_1_1_20130521_level2';	--此处是第一个2级增量备份的控制文件

Starting restore at 21-MAY-13
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK

channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:02
output filename=/u01/app/oracle/oradata/ora10gr2/control01.ctl
output filename=/u01/app/oracle/oradata/ora10gr2/control02.ctl
output filename=/u01/app/oracle/oradata/ora10gr2/control03.ctl
Finished restore at 21-MAY-13

RMAN> startup mount;

database is already started
database mounted
released channel: ORA_DISK_1

RMAN> recover database;

Starting recover at 21-MAY-13
Starting implicit crosscheck backup at 21-MAY-13
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK
Crosschecked 28 objects
Finished implicit crosscheck backup at 21-MAY-13

Starting implicit crosscheck copy at 21-MAY-13
using channel ORA_DISK_1
Finished implicit crosscheck copy at 21-MAY-13

searching for all files in the recovery area
cataloging files...
no files cataloged

using channel ORA_DISK_1
channel ORA_DISK_1: starting incremental datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
destination for restore of datafile 00002: /u01/app/oracle/oradata/ora10gr2/undotbs01.dbf
destination for restore of datafile 00003: /u01/app/oracle/oradata/ora10gr2/sysaux01.dbf
destination for restore of datafile 00005: /u01/app/oracle/oradata/ora10gr2/test01.dbf
destination for restore of datafile 00006: /u01/app/oracle/oradata/ora10gr2/ogg01.dbf
channel ORA_DISK_1: reading from backup piece /tmp/orcl_lev2_0foa77jv_1_1_20130521
channel ORA_DISK_1: restored backup piece 1
piece handle=/tmp/orcl_lev2_0foa77jv_1_1_20130521 tag=ORCL_LEV2
channel ORA_DISK_1: restore complete, elapsed time: 00:00:03
channel ORA_DISK_1: starting incremental datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
destination for restore of datafile 00001: /u01/app/oracle/oradata/ora10gr2/system01.dbf
destination for restore of datafile 00004: /u01/app/oracle/oradata/ora10gr2/users01.dbf
destination for restore of datafile 00007: /u01/app/oracle/oradata/ora10gr2/yallonking01.dbf
channel ORA_DISK_1: reading from backup piece /tmp/orcl_lev2_0eoa77jv_1_1_20130521
channel ORA_DISK_1: restored backup piece 1
piece handle=/tmp/orcl_lev2_0eoa77jv_1_1_20130521 tag=ORCL_LEV2
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01

starting media recovery

channel ORA_DISK_1: starting archive log restore to default destination
channel ORA_DISK_1: restoring archive log
archive log thread=1 sequence=45
channel ORA_DISK_1: restoring archive log
archive log thread=1 sequence=46
channel ORA_DISK_1: reading from backup piece /tmp/arch_28_1_816029328.bak
channel ORA_DISK_1: restored backup piece 1
piece handle=/tmp/arch_28_1_816029328.bak tag=TAG20130521T184836
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
archive log filename=/u01/app/oracle/flash_recovery_area/ORA10GR2/archivelog/2013_05_21/o1_mf_1_45_8srh41qv_.arc thread=1 sequence=45
channel default: deleting archive log(s)
archive log filename=/u01/app/oracle/flash_recovery_area/ORA10GR2/archivelog/2013_05_21/o1_mf_1_45_8srh41qv_.arc recid=91 stamp=816035601
archive log filename=/u01/app/oracle/flash_recovery_area/ORA10GR2/archivelog/2013_05_21/o1_mf_1_46_8srh41rd_.arc thread=1 sequence=46
channel default: deleting archive log(s)
archive log filename=/u01/app/oracle/flash_recovery_area/ORA10GR2/archivelog/2013_05_21/o1_mf_1_46_8srh41rd_.arc recid=92 stamp=816035601
unable to find archive log
archive log thread=1 sequence=47
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 05/21/2013 20:33:24
RMAN-06054: media recovery requesting unknown log: thread 1 seq 47 lowscn 501062

RMAN> alter database open resetlogs;

database opened

RMAN> exit


Recovery Manager complete.


以上是完整的输出,可以看到在恢复2级的时候只应用了2级的增量备份的备份片。

验证恢复结果

[oracle@ora10gr2 ora10gr2]$ sqlplus "/as sysdba"

SQL*Plus: Release 10.2.0.1.0 - Production on Tue May 21 20:34:13 2013

Copyright (c) 1982, 2005, Oracle.  All rights reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options

SQL> alter session set nls_date_format='yyyy/mm/dd hh24:mi:ss';

Session altered.

SQL> select * from yallonking.yallonking;

        ID NAME                 MY_DATE
---------- -------------------- -------------------
         1 0                    2013/05/21 18:38:54
         2 2                    2013/05/21 18:45:15

*************************下边继续尝试在resetlogs打开库并进行了事物后,能否再继续恢复*************************
正常进行事物

SQL> insert into yallonking.yallonking values(10,'after_resetlogs_open',sysdate);

1 row created.

SQL> commit;

Commit complete.

SQL> alter session set nls_date_format='yyyy/mm/dd hh24:mi:ss';

Session altered.

SQL> select * from yallonking.yallonking;

        ID NAME                 MY_DATE
---------- -------------------- -------------------
         1 0                    2013/05/21 18:38:54
         2 2                    2013/05/21 18:45:15
        10 after_resetlogs_open 2013/05/21 21:49:43

下边继续进行之前的增量的恢复

SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.

[oracle@ora10gr2 ora10gr2]$ rman target /

Recovery Manager: Release 10.2.0.1.0 - Production on Tue May 21 21:51:51 2013

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database (not started)

RMAN> startup nomount;

Oracle instance started

Total System Global Area     608174080 bytes

Fixed Size                     1220844 bytes
Variable Size                213913364 bytes
Database Buffers             390070272 bytes
Redo Buffers                   2969600 bytes

RMAN> restore controlfile from '/tmp/ctl_file_1soa78bo_1_1_20130521_level2'; --此处是最新的控制及文件的备份

Starting restore at 21-MAY-13
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK

channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
output filename=/u01/app/oracle/oradata/ora10gr2/control01.ctl
output filename=/u01/app/oracle/oradata/ora10gr2/control02.ctl
output filename=/u01/app/oracle/oradata/ora10gr2/control03.ctl
Finished restore at 21-MAY-13

RMAN> startup mount;

database is already started
database mounted
released channel: ORA_DISK_1

RMAN> recover database;

Starting recover at 21-MAY-13
Starting implicit crosscheck backup at 21-MAY-13
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK
Crosschecked 59 objects
Finished implicit crosscheck backup at 21-MAY-13

Starting implicit crosscheck copy at 21-MAY-13
using channel ORA_DISK_1
Finished implicit crosscheck copy at 21-MAY-13

searching for all files in the recovery area
cataloging files...
no files cataloged

using channel ORA_DISK_1

starting media recovery
media recovery failed
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 05/21/2013 21:52:39
ORA-00283: recovery session canceled due to errors
RMAN-11003: failure during parse/execution of SQL statement: alter database recover if needed
 start until cancel using backup controlfile
ORA-00283: recovery session canceled due to errors
ORA-19909: datafile 1 belongs to an orphan incarnation
ORA-01110: data file 1: '/u01/app/oracle/oradata/ora10gr2/system01.dbf'

RMAN> restore database;

Starting restore at 21-MAY-13
using channel ORA_DISK_1

channel ORA_DISK_1: starting datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
restoring datafile 00001 to /u01/app/oracle/oradata/ora10gr2/system01.dbf
restoring datafile 00004 to /u01/app/oracle/oradata/ora10gr2/users01.dbf
restoring datafile 00007 to /u01/app/oracle/oradata/ora10gr2/yallonking01.dbf
channel ORA_DISK_1: reading from backup piece /tmp/orcl_lev0_01oa7792_1_1_20130521
channel ORA_DISK_1: restored backup piece 1
piece handle=/tmp/orcl_lev0_01oa7792_1_1_20130521 tag=ORCL_LEV0
channel ORA_DISK_1: restore complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
restoring datafile 00002 to /u01/app/oracle/oradata/ora10gr2/undotbs01.dbf
restoring datafile 00003 to /u01/app/oracle/oradata/ora10gr2/sysaux01.dbf
restoring datafile 00005 to /u01/app/oracle/oradata/ora10gr2/test01.dbf
restoring datafile 00006 to /u01/app/oracle/oradata/ora10gr2/ogg01.dbf
channel ORA_DISK_1: reading from backup piece /tmp/orcl_lev0_02oa7792_1_1_20130521
channel ORA_DISK_1: restored backup piece 1
piece handle=/tmp/orcl_lev0_02oa7792_1_1_20130521 tag=ORCL_LEV0
channel ORA_DISK_1: restore complete, elapsed time: 00:00:15
Finished restore at 21-MAY-13

RMAN> recover database;

Starting recover at 21-MAY-13
using channel ORA_DISK_1
channel ORA_DISK_1: starting incremental datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
destination for restore of datafile 00001: /u01/app/oracle/oradata/ora10gr2/system01.dbf
destination for restore of datafile 00007: /u01/app/oracle/oradata/ora10gr2/yallonking01.dbf
channel ORA_DISK_1: reading from backup piece /tmp/orcl_lev1_0voa77v2_1_1_20130521
channel ORA_DISK_1: restored backup piece 1
piece handle=/tmp/orcl_lev1_0voa77v2_1_1_20130521 tag=ORCL_LEV1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:02
channel ORA_DISK_1: starting incremental datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
destination for restore of datafile 00002: /u01/app/oracle/oradata/ora10gr2/undotbs01.dbf
destination for restore of datafile 00003: /u01/app/oracle/oradata/ora10gr2/sysaux01.dbf
destination for restore of datafile 00004: /u01/app/oracle/oradata/ora10gr2/users01.dbf
destination for restore of datafile 00005: /u01/app/oracle/oradata/ora10gr2/test01.dbf
destination for restore of datafile 00006: /u01/app/oracle/oradata/ora10gr2/ogg01.dbf
channel ORA_DISK_1: reading from backup piece /tmp/orcl_lev1_10oa77v3_1_1_20130521
channel ORA_DISK_1: restored backup piece 1
piece handle=/tmp/orcl_lev1_10oa77v3_1_1_20130521 tag=ORCL_LEV1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:03
channel ORA_DISK_1: starting incremental datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
destination for restore of datafile 00001: /u01/app/oracle/oradata/ora10gr2/system01.dbf
destination for restore of datafile 00004: /u01/app/oracle/oradata/ora10gr2/users01.dbf
destination for restore of datafile 00007: /u01/app/oracle/oradata/ora10gr2/yallonking01.dbf
channel ORA_DISK_1: reading from backup piece /tmp/orcl_lev1_1boa780s_1_1_20130521
channel ORA_DISK_1: restored backup piece 1
piece handle=/tmp/orcl_lev1_1boa780s_1_1_20130521 tag=ORCL_LEV1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
channel ORA_DISK_1: starting incremental datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
destination for restore of datafile 00002: /u01/app/oracle/oradata/ora10gr2/undotbs01.dbf
destination for restore of datafile 00003: /u01/app/oracle/oradata/ora10gr2/sysaux01.dbf
destination for restore of datafile 00005: /u01/app/oracle/oradata/ora10gr2/test01.dbf
destination for restore of datafile 00006: /u01/app/oracle/oradata/ora10gr2/ogg01.dbf
channel ORA_DISK_1: reading from backup piece /tmp/orcl_lev1_1coa780s_1_1_20130521
channel ORA_DISK_1: restored backup piece 1
piece handle=/tmp/orcl_lev1_1coa780s_1_1_20130521 tag=ORCL_LEV1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
channel ORA_DISK_1: starting incremental datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
destination for restore of datafile 00001: /u01/app/oracle/oradata/ora10gr2/system01.dbf
destination for restore of datafile 00004: /u01/app/oracle/oradata/ora10gr2/users01.dbf
destination for restore of datafile 00007: /u01/app/oracle/oradata/ora10gr2/yallonking01.dbf
channel ORA_DISK_1: reading from backup piece /tmp/orcl_lev2_1koa78bf_1_1_20130521
channel ORA_DISK_1: restored backup piece 1
piece handle=/tmp/orcl_lev2_1koa78bf_1_1_20130521 tag=ORCL_LEV2
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
channel ORA_DISK_1: starting incremental datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
destination for restore of datafile 00002: /u01/app/oracle/oradata/ora10gr2/undotbs01.dbf
destination for restore of datafile 00003: /u01/app/oracle/oradata/ora10gr2/sysaux01.dbf
destination for restore of datafile 00005: /u01/app/oracle/oradata/ora10gr2/test01.dbf
destination for restore of datafile 00006: /u01/app/oracle/oradata/ora10gr2/ogg01.dbf
channel ORA_DISK_1: reading from backup piece /tmp/orcl_lev2_1loa78bf_1_1_20130521
channel ORA_DISK_1: restored backup piece 1
piece handle=/tmp/orcl_lev2_1loa78bf_1_1_20130521 tag=ORCL_LEV2
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01

starting media recovery

archive log thread 1 sequence 68 is already on disk as file /u01/app/oracle/oradata/arch/1_68_791701862.dbf
archive log thread 1 sequence 69 is already on disk as file /u01/app/oracle/oradata/arch/1_69_791701862.dbf
archive log filename=/u01/app/oracle/oradata/arch/1_68_791701862.dbf thread=1 sequence=68
archive log filename=/u01/app/oracle/oradata/arch/1_69_791701862.dbf thread=1 sequence=69
unable to find archive log
archive log thread=1 sequence=70
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 05/21/2013 21:53:53
RMAN-06054: media recovery requesting unknown log: thread 1 seq 70 lowscn 502078

RMAN> alter database open resetlogs;

database opened

RMAN> exit


Recovery Manager complete.
[oracle@ora10gr2 ora10gr2]$ sqlplus "/as sysdba"

SQL*Plus: Release 10.2.0.1.0 - Production on Tue May 21 21:54:35 2013

Copyright (c) 1982, 2005, Oracle.  All rights reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options

SQL> alter session set nls_date_format='yyyy/mm/dd hh24:mi:ss';

Session altered.

SQL> select * from yallonking.yallonking;

        ID NAME                 MY_DATE
---------- -------------------- -------------------
         1 0                    2013/05/21 18:38:54
         2 2                    2013/05/21 18:45:15
         3 1                    2013/05/21 18:51:15
         4 2                    2013/05/21 18:57:55

此处发现,在resetlogs打开库并进行事物后,这样的恢复会先恢复0级再恢复后边1级再恢复最近的2级。也说明了,在resetlogs打开库后,之前的备份还是可以用的。

标签:

给我留言

Copyright © YallonKing 保留所有权利.   Theme  Ality

用户登录

分享到: