tspitr（tablespace point in time recovery）实验
===========环境模拟=================
-----------模拟数据----------------
SYS@ORCL>create tablespace test
2 datafile '/u01/app/oracle/oradata/ORCL/test.dbf' size 5m;
Tablespace created.
SYS@ORCL>
SYS@ORCL>
SYS@ORCL>create table test(x int)tablespace test;
Table created.
SYS@ORCL>insert into test values(1);
1 row created.
SYS@ORCL>;
1* insert into test values(1)
SYS@ORCL>insert into test values(2);
1 row created.
SYS@ORCL>commit;
Commit complete.
SYS@ORCL>alter system switch logfile;
System altered.
SYS@ORCL>/
System altered.
SYS@ORCL>/
System altered.
SYS@ORCL>/
System altered.
SYS@ORCL>insert into test values(3);
1 row created.
SYS@ORCL>alter system switch logfile;
System altered.
SYS@ORCL>insert into test values(4);
1 row created.
SYS@ORCL>commit;
Commit complete.
SYS@ORCL>alter system switch logfile;
System altered.
SYS@ORCL>insert into test values(5);
1 row created.
SYS@ORCL>commit;
Commit complete.
SYS@ORCL>alter system switch logfile;
System altered.
SYS@ORCL>/
System altered.
SYS@ORCL>/
System altered.
SYS@ORCL>shutdown immediate;
-----------删除数据文件------------
[oracle@itaa-ocp ORCL]$ ls
control01.ctl example01.dbf redo03.log temp01.dbf users01.dbf
control02.ctl redo01.log sysaux01.dbf test.dbf
control03.ctl redo02.log system01.dbf undotbs01.dbf
[oracle@itaa-ocp ORCL]$ mv test.dbf test.dbf.bak
-----------制造归档断点-----------------
[root@itaa-ocp 2016_01_13]# mv o1_mf_1_10_c9cj7grz_.arc o1_mf_1_10_c9cj7grz_.arc.bak
[root@itaa-ocp 2016_01_13]# ls
o1_mf_1_10_c9cj7grz_.arc.bak o1_mf_1_14_c9cj9zsv_.arc o1_mf_1_6_c9cj5xdt_.arc
o1_mf_1_11_c9cj8lgw_.arc o1_mf_1_3_c9cj24qn_.arc o1_mf_1_7_c9cj5yj9_.arc
o1_mf_1_12_c9cj9msn_.arc o1_mf_1_4_c9cj382m_.arc o1_mf_1_8_c9cj63xy_.arc
o1_mf_1_13_c9cj9ssq_.arc o1_mf_1_5_c9cj4xpn_.arc o1_mf_1_9_c9cj676b_.arc
[root@itaa-ocp 2016_01_13]# ll
total 500
-rw-r----- 1 oracle oinstall 5120 Jan 13 11:13 o1_mf_1_10_c9cj7grz_.arc.bak
-rw-r----- 1 oracle oinstall 2048 Jan 13 11:14 o1_mf_1_11_c9cj8lgw_.arc
-rw-r----- 1 oracle oinstall 38400 Jan 13 11:14 o1_mf_1_12_c9cj9msn_.arc
-rw-r----- 1 oracle oinstall 1536 Jan 13 11:15 o1_mf_1_13_c9cj9ssq_.arc
-rw-r----- 1 oracle oinstall 6144 Jan 13 11:15 o1_mf_1_14_c9cj9zsv_.arc
-rw-r----- 1 oracle oinstall 406016 Jan 13 11:11 o1_mf_1_3_c9cj24qn_.arc
-rw-r----- 1 oracle oinstall 2560 Jan 13 11:11 o1_mf_1_4_c9cj382m_.arc
-rw-r----- 1 oracle oinstall 5120 Jan 13 11:12 o1_mf_1_5_c9cj4xpn_.arc
-rw-r----- 1 oracle oinstall 4608 Jan 13 11:13 o1_mf_1_6_c9cj5xdt_.arc
-rw-r----- 1 oracle oinstall 1024 Jan 13 11:13 o1_mf_1_7_c9cj5yj9_.arc
-rw-r----- 1 oracle oinstall 1536 Jan 13 11:13 o1_mf_1_8_c9cj63xy_.arc
-rw-r----- 1 oracle oinstall 1024 Jan 13 11:13 o1_mf_1_9_c9cj676b_.arc
[root@itaa-ocp 2016_01_13]#
============恢复过程=====================
-----------打开数据库-------------------
SYS@ORCL>startup
ORACLE instance started.
Total System Global Area 285212672 bytes
Fixed Size 1218992 bytes
Variable Size 92276304 bytes
Database Buffers 188743680 bytes
Redo Buffers 2973696 bytes
Database mounted.
ORA-01157: cannot identify/lock data file 6 - see DBWR trace file
ORA-01110: data file 6: '/u01/app/oracle/oradata/ORCL/test.dbf'
SYS@ORCL>alter database datafile 6 offline drop;
Database altered.
SYS@ORCL>alter database open;
Database altered.
---------查询须要恢复的表空间--------------
RMAN> report schema;
using target database control file instead of recovery catalog
Report of database schema
List of Permanent Datafiles
===========================
File Size(MB) Tablespace RB segs Datafile Name
---- -------- -------------------- ------- ------------------------
1 480 SYSTEM *** /u01/app/oracle/oradata/ORCL/system01.dbf
2 30 UNDOTBS1 *** /u01/app/oracle/oradata/ORCL/undotbs01.dbf
3 240 SYSAUX *** /u01/app/oracle/oradata/ORCL/sysaux01.dbf
4 5 USERS *** /u01/app/oracle/oradata/ORCL/users01.dbf
5 100 EXAMPLE *** /u01/app/oracle/oradata/ORCL/example01.dbf
6 0 TEST *** /u01/app/oracle/oradata/ORCL/test.dbf
List of Temporary Files
=======================
File Size(MB) Tablespace Maxsize(MB) Tempfile Name
---- -------- -------------------- ----------- --------------------
1 20 TEMP 32767 /u01/app/oracle/oradata/ORCL/temp01.dbf
--------准备辅助数据库路径---------------
[oracle@itaa-ocp oracle]$ mkdir aux
[oracle@itaa-ocp oracle]$ cd aux/
[oracle@itaa-ocp aux]$ pwd
/u01/app/oracle/aux
--------恢复数据文件至断点--------------
RMAN> recover tablespace 'TEST' until logseq 9 auxiliary destination '/u01/app/oracle/aux';
Starting recover at 13-JAN-16
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=148 devtype=DISK
RMAN-05026: WARNING: presuming following set of tablespaces applies to specified point in time
List of tablespaces expected to have UNDO segments
tablespace SYSTEM
tablespace UNDOTBS1
Creating automatic instance, with SID='brdd'
initialization parameters used for automatic instance:
db_name=ORCL
compatible=10.2.0.1.0
db_block_size=8192
db_files=200
db_unique_name=tspitr_ORCL_brdd
large_pool_size=1M
shared_pool_size=110M
#No auxiliary parameter file used
db_create_file_dest=/u01/app/oracle/aux
control_files=/u01/app/oracle/aux/cntrl_tspitr_ORCL_brdd.f
starting up automatic instance ORCL
Oracle instance started
Total System Global Area 201326592 bytes
Fixed Size 1218508 bytes
Variable Size 146802740 bytes
Database Buffers 50331648 bytes
Redo Buffers 2973696 bytes
Automatic instance created
contents of Memory Script:
{
# set the until clause
set until logseq 9 thread 1;
# restore the controlfile
restore clone controlfile;
# mount the controlfile
sql clone 'alter database mount clone database';
# archive current online log for tspitr to a resent until time
sql 'alter system archive log current';
# avoid unnecessary autobackups for structural changes during TSPITR
sql 'begin dbms_backup_restore.AutoBackupFlag(FALSE); end;';
}
executing Memory Script
executing command: SET until clause
Starting restore at 13-JAN-16
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: sid=37 devtype=DISK
channel ORA_AUX_DISK_1: starting datafile backupset restore
channel ORA_AUX_DISK_1: restoring control file
channel ORA_AUX_DISK_1: reading from backup piece /u01/app/oracle/flash_recovery_area/ORCL/backupset/2016_01_13/o1_mf_ncsnf_TAG20160113T111138_c9cj4tcp_.bkp
channel ORA_AUX_DISK_1: restored backup piece 1
piece handle=/u01/app/oracle/flash_recovery_area/ORCL/backupset/2016_01_13/o1_mf_ncsnf_TAG20160113T111138_c9cj4tcp_.bkp tag=TAG20160113T111138
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:02
output filename=/u01/app/oracle/aux/cntrl_tspitr_ORCL_brdd.f
Finished restore at 13-JAN-16
sql statement: alter database mount clone database
sql statement: alter system archive log current
sql statement: begin dbms_backup_restore.AutoBackupFlag(FALSE); end;
released channel: ORA_DISK_1
released channel: ORA_AUX_DISK_1
contents of Memory Script:
{
# generated tablespace point-in-time recovery script
# set the until clause
set until logseq 9 thread 1;
plsql <<<-- tspitr_2
declare
sqlstatement varchar2(512);
offline_not_needed exception;
pragma exception_init(offline_not_needed, -01539);
begin
sqlstatement := 'alter tablespace '|| 'TEST' ||' offline for recover';
krmicd.writeMsg(6162, sqlstatement);
krmicd.execSql(sqlstatement);
exception
when offline_not_needed then
null;
end; >>>;
# set an omf destination filename for restore
set newname for clone datafile 1 to new;
# set an omf destination filename for restore
set newname for clone datafile 2 to new;
# set an omf destination tempfile
set newname for clone tempfile 1 to new;
# set a destination filename for restore
set newname for datafile 6 to
"/u01/app/oracle/oradata/ORCL/test.dbf";
# rename all tempfiles
switch clone tempfile all;
# restore the tablespaces in the recovery set plus the auxilliary tablespaces
restore clone datafile 1, 2, 6;
switch clone datafile all;
#online the datafiles restored or flipped
sql clone "alter database datafile 1 online";
#online the datafiles restored or flipped
sql clone "alter database datafile 2 online";
#online the datafiles restored or flipped
sql clone "alter database datafile 6 online";
# make the controlfile point at the restored datafiles, then recover them
recover clone database tablespace "TEST", "SYSTEM", "UNDOTBS1" delete archivelog;
alter clone database open resetlogs;
# PLUG HERE the creation of a temporary tablespace if export fails due to lack
# of temporary space.
# For example in Unix these two lines would do that:
#sql clone "create tablespace aux_tspitr_tmp
# datafile ''/tmp/aux_tspitr_tmp.dbf'' size 500K";
}
executing Memory Script
executing command: SET until clause
sql statement: alter tablespace TEST offline for recover
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
renamed temporary file 1 to /u01/app/oracle/aux/TSPITR_ORCL_BRDD/datafile/o1_mf_temp_%u_.tmp in control file
Starting restore at 13-JAN-16
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: sid=39 devtype=DISK
channel ORA_AUX_DISK_1: starting datafile backupset restore
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
restoring datafile 00001 to /u01/app/oracle/aux/TSPITR_ORCL_BRDD/datafile/o1_mf_system_%u_.dbf
restoring datafile 00002 to /u01/app/oracle/aux/TSPITR_ORCL_BRDD/datafile/o1_mf_undotbs1_%u_.dbf
restoring datafile 00006 to /u01/app/oracle/oradata/ORCL/test.dbf
channel ORA_AUX_DISK_1: reading from backup piece /u01/app/oracle/flash_recovery_area/ORCL/backupset/2016_01_13/o1_mf_nnndf_TAG20160113T111138_c9cj3btp_.bkp
channel ORA_AUX_DISK_1: restored backup piece 1
piece handle=/u01/app/oracle/flash_recovery_area/ORCL/backupset/2016_01_13/o1_mf_nnndf_TAG20160113T111138_c9cj3btp_.bkp tag=TAG20160113T111138
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:26
Finished restore at 13-JAN-16
datafile 1 switched to datafile copy
input datafile copy recid=5 stamp=901020119 filename=/u01/app/oracle/aux/TSPITR_ORCL_BRDD/datafile/o1_mf_system_c9cjowoq_.dbf
datafile 2 switched to datafile copy
input datafile copy recid=6 stamp=901020119 filename=/u01/app/oracle/aux/TSPITR_ORCL_BRDD/datafile/o1_mf_undotbs1_c9cjowqp_.dbf
sql statement: alter database datafile 1 online
sql statement: alter database datafile 2 online
sql statement: alter database datafile 6 online
Starting recover at 13-JAN-16
using channel ORA_AUX_DISK_1
starting media recovery
archive log thread 1 sequence 5 is already on disk as file /u01/app/oracle/flash_recovery_area/ORCL/archivelog/2016_01_13/o1_mf_1_5_c9cj4xpn_.arc
archive log thread 1 sequence 6 is already on disk as file /u01/app/oracle/flash_recovery_area/ORCL/archivelog/2016_01_13/o1_mf_1_6_c9cj5xdt_.arc
archive log thread 1 sequence 7 is already on disk as file /u01/app/oracle/flash_recovery_area/ORCL/archivelog/2016_01_13/o1_mf_1_7_c9cj5yj9_.arc
archive log thread 1 sequence 8 is already on disk as file /u01/app/oracle/flash_recovery_area/ORCL/archivelog/2016_01_13/o1_mf_1_8_c9cj63xy_.arc
archive log filename=/u01/app/oracle/flash_recovery_area/ORCL/archivelog/2016_01_13/o1_mf_1_5_c9cj4xpn_.arc thread=1 sequence=5
archive log filename=/u01/app/oracle/flash_recovery_area/ORCL/archivelog/2016_01_13/o1_mf_1_6_c9cj5xdt_.arc thread=1 sequence=6
archive log filename=/u01/app/oracle/flash_recovery_area/ORCL/archivelog/2016_01_13/o1_mf_1_7_c9cj5yj9_.arc thread=1 sequence=7
archive log filename=/u01/app/oracle/flash_recovery_area/ORCL/archivelog/2016_01_13/o1_mf_1_8_c9cj63xy_.arc thread=1 sequence=8
media recovery complete, elapsed time: 00:00:02
Finished recover at 13-JAN-16
database opened
contents of Memory Script:
{
# export the tablespaces in the recovery set
host 'exp userid =\"/@\(DESCRIPTION=\(ADDRESS=\(PROTOCOL=beq\)\(PROGRAM=/u01/app/oracle/product/10.2.0/bin/oracle\)\(ARGV0=oraclebrdd\)\(ARGS=^'\(DESCRIPTION=\(LOCAL=YES\)\(ADDRESS=\(PROTOCOL=beq\)\)\)^'\)\(ENVS=^'ORACLE_SID=brdd^'\)\)\(CONNECT_DATA=\(SID=brdd\)\)\)
as sysdba\" point_in_time_recover=y tablespaces=
TEST file=
tspitr_a.dmp';
# shutdown clone before import
shutdown clone immediate
# import the tablespaces in the recovery set
host 'imp userid =\"/@ as sysdba\" point_in_time_recover=y file=
tspitr_a.dmp';
# online/offline the tablespace imported
sql "alter tablespace TEST online";
sql "alter tablespace TEST offline";
# enable autobackups in case user does open resetlogs from RMAN after TSPITR
sql 'begin dbms_backup_restore.AutoBackupFlag(TRUE); end;';
}
executing Memory Script
Export: Release 10.2.0.1.0 - Production on Wed Jan 13 11:22:15 2016
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
Export done in US7ASCII character set and AL16UTF16 NCHAR character set
server uses UTF8 character set (possible charset conversion)
Note: table data (rows) will not be exported
About to export Tablespace Point-in-time Recovery objects...
For tablespace TEST ...
. exporting cluster definitions
. exporting table definitions
. . exporting table TEST
. exporting referential integrity constraints
. exporting triggers
. end point-in-time recovery
Export terminated successfully without warnings.
host command complete
database closed
database dismounted
Oracle instance shut down
Import: Release 10.2.0.1.0 - Production on Wed Jan 13 11:22:30 2016
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
Export file created by EXPORT:V10.02.01 via conventional path
About to import Tablespace Point-in-time Recovery objects...
import done in US7ASCII character set and AL16UTF16 NCHAR character set
import server uses UTF8 character set (possible charset conversion)
. importing SYS's objects into SYS
. . importing table "TEST"
Import terminated successfully without warnings.
host command complete
sql statement: alter tablespace TEST online
sql statement: alter tablespace TEST offline
sql statement: begin dbms_backup_restore.AutoBackupFlag(TRUE); end;
Removing automatic instance
Automatic instance removed
auxiliary instance file /u01/app/oracle/aux/cntrl_tspitr_ORCL_brdd.f deleted
auxiliary instance file /u01/app/oracle/aux/TSPITR_ORCL_BRDD/datafile/o1_mf_system_c9cjowoq_.dbf deleted
auxiliary instance file /u01/app/oracle/aux/TSPITR_ORCL_BRDD/datafile/o1_mf_undotbs1_c9cjowqp_.dbf deleted
auxiliary instance file /u01/app/oracle/aux/TSPITR_ORCL_BRDD/datafile/o1_mf_temp_c9cjq24h_.tmp deleted
auxiliary instance file /u01/app/oracle/aux/TSPITR_ORCL_BRDD/onlinelog/o1_mf_1_c9cjptyy_.log deleted
auxiliary instance file /u01/app/oracle/aux/TSPITR_ORCL_BRDD/onlinelog/o1_mf_2_c9cjpwoo_.log deleted
auxiliary instance file /u01/app/oracle/aux/TSPITR_ORCL_BRDD/onlinelog/o1_mf_3_c9cjpzph_.log deleted
Finished recover at 13-JAN-16
RMAN>
------------表空间上线----------
SYS@ORCL>alter database datafile 6 online;
Database altered.
SYS@ORCL>desc dba_tablespaces;
Name Null? Type
----------------------------------------- -------- ----------------------------
TABLESPACE_NAME NOT NULL VARCHAR2(30)
BLOCK_SIZE NOT NULL NUMBER
INITIAL_EXTENT NUMBER
NEXT_EXTENT NUMBER
MIN_EXTENTS NOT NULL NUMBER
MAX_EXTENTS NUMBER
PCT_INCREASE NUMBER
MIN_EXTLEN NUMBER
STATUS VARCHAR2(9)
CONTENTS VARCHAR2(9)
LOGGING VARCHAR2(9)
FORCE_LOGGING VARCHAR2(3)
EXTENT_MANAGEMENT VARCHAR2(10)
ALLOCATION_TYPE VARCHAR2(9)
PLUGGED_IN VARCHAR2(3)
SEGMENT_SPACE_MANAGEMENT VARCHAR2(6)
DEF_TAB_COMPRESSION VARCHAR2(8)
RETENTION VARCHAR2(11)
BIGFILE VARCHAR2(3)
SYS@ORCL>select TABLESPACE_NAME,STATUS from dba_tablespaces;
TABLESPACE_NAME STATUS
------------------------------ ---------
SYSTEM ONLINE
UNDOTBS1 ONLINE
SYSAUX ONLINE
TEMP ONLINE
USERS ONLINE
EXAMPLE ONLINE
TEST OFFLINE
7 rows selected.
SYS@ORCL>alter tablespace test online;
Tablespace altered.
SYS@ORCL>select * from test;
X
----------
1
2
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