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阅读本文前，您必须在数据文件或者表空间丢失之前已经进行了镜像COPY备份，如果您目前符合当前的条件，那么本文可以作为您的恢复参考:
1.首先，我们需要查看备份的情况。
RMAN> list copy ;
List of Datafile Copies
Key File S Completion Time Ckp SCN Ckp Time Name
------- ---- - --------------- ---------- --------------- ----
13 1 A 28-MAR-05 10557893 28-MAR-05 /data5/flash_recovery_area/EYGLE/datafile
/o1_mf_system_14h9tbms_.dbf
16 2 A 28-MAR-05 10557921 28-MAR-05 /data5/flash_recovery_area/EYGLE/datafile
/o1_mf_undotbs1_14h9wfq7_.dbf
17 3 A 28-MAR-05 10557950 28-MAR-05 /data5/flash_recovery_area/EYGLE/datafile
/o1_mf_sysaux_14h9wxfn_.dbf
19 4 A 28-MAR-05 10557960 28-MAR-05 /data5/flash_recovery_area/EYGLE/datafile
/o1_mf_users_14h9xjx2_.dbf
14 5 A 28-MAR-05 10557903 28-MAR-05 /data5/flash_recovery_area/EYGLE/datafile
/o1_mf_eygle_14h9v4bd_.dbf
15 6 A 28-MAR-05 10557910 28-MAR-05 /data5/flash_recovery_area/EYGLE/datafile
/o1_mf_test_14h9vn0z_.dbf
20 7 A 28-MAR-05 10557967 28-MAR-05 /data5/flash_recovery_area/EYGLE/datafile
/o1_mf_itpub_14h9y0pg_.dbf
22 8 A 28-MAR-05 4544220 13-JUN-04 /data5/flash_recovery_area/EYGLE/datafile
/o1_mf_trans_14h9ymw3_.dbf
12 9 A 28-MAR-05 10557876 28-MAR-05 /data5/flash_recovery_area/EYGLE/datafile
/o1_mf_bigtbs_14h9rwv9_.dbf
21 10 A 28-MAR-05 10557974 28-MAR-05 /data5/flash_recovery_area/EYGLE/datafile
/o1_mf_dfmbrc_14h9yjfg_.dbf
18 11 A 28-MAR-05 10557957 28-MAR-05 /data5/flash_recovery_area/EYGLE/datafile
/o1_mf_t2k_14h9xf4y_.dbf
List of Archived Log Copies
Key Thrd Seq S Low Time Name
------- ---- ------- - --------- ----
229 1 1753 A 28-MAR-05 /data5/flash_recovery_area
/EYGLE/archivelog/2005_03_28/o1_mf_1_1753_14hcp43x_.arc
RMAN> |
2.下一步，恢复相关的文件
注释：您可以通过SETNAME指定恢复文件到不同的位置.
$ rman target /
Recovery Manager: Release 10.1.0.2.0 - 64bit Production
Copyright (c) 1995, 2004, Oracle. All rights reserved.
connected to target database (not started)
RMAN> startup mount;
Oracle instance started
database mounted
Total System Global Area 314572800 bytes
Fixed Size 1301704 bytes
Variable Size 261890872 bytes
Database Buffers 50331648 bytes
Redo Buffers 1048576 bytes
RMAN> run {
2> SET NEWNAME FOR DATAFILE 8 TO
'/opt/oracle/oradata/eygle/trans01.dbf';
3> RESTORE DATAFILE 8;
4> SWITCH DATAFILE ALL;
5> RECOVER DATAFILE 8;
}6>
executing command: SET NEWNAME
using target database controlfile instead of recovery catalog
Starting restore at 28-MAR-05
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=160 devtype=DISK
channel ORA_DISK_1: restoring datafile 00008
input datafilecopy recid=25 stamp=554139614
filename=/data5/flash_recovery_area/EYGLE
/datafile/o1_mf_trans_14h9ymw3_.dbf
destination for restore of datafile 00008:
/opt/oracle/oradata/eygle/trans01.dbf
channel ORA_DISK_1: copied
datafilecopy of datafile 00008
output filename=/opt/oracle/oradata
/eygle/trans01.dbf recid=26 stamp=554142136
Finished restore at 28-MAR-05
datafile 8 switched to datafile copy
input datafilecopy recid=27 stamp=554142139 filename=/opt/oracle/oradata/eygle/trans01.dbf
Starting recover at 28-MAR-05
using channel ORA_DISK_1
starting media recovery
media recovery complete
Finished recover at 28-MAR-05
RMAN> alter database open;
database opened
RMAN> |
3.最后，查看一下alert文件的记录
在这里大家可以留意一下恢复过程中alert文件中记录的详细信息:
Mon Mar 28 16:21:09 2005
Database mounted in Exclusive Mode.
Completed: alter database mount
Mon Mar 28 16:22:16 2005
Copy of datafile copy /data5/flash_recovery_area/EYGLE
/datafile/o1_mf_trans_14h9ymw3_.dbf complete
to datafile copy /opt/oracle/oradata/eygle/test01.dbf
checkpoint is 4544220
Mon Mar 28 16:22:20 2005
Switch of datafile 8 complete to datafile copy
checkpoint is 4544220
Mon Mar 28 16:22:22 2005
alter database recover datafile list clear
Completed: alter database recover datafile list clear
Mon Mar 28 16:22:22 2005
alter database recover if needed
datafile 8
Media Recovery Datafile: 8
Media Recovery Start
ORA-264 signalled during:
alter database recover if needed
datafile 8
...
Mon Mar 28 16:22:35 2005
alter database open
Mon Mar 28 16:22:35 2005
Block change tracking file is current.
Mon Mar 28 16:22:35 2005
LGWR: STARTING ARCH PROCESSES
ARC0 started with pid=15, OS id=29888
ARC0: Archival started
Mon Mar 28 16:22:35 2005
LGWR: STARTING ARCH PROCESSES COMPLETE
ARC1 started with pid=16, OS id=29890
ARC1: Archival started
ARC1: Becoming the 'no FAL' ARCH
ARC1: Becoming the 'no SRL' ARCH
Mon Mar 28 16:22:35 2005
ARC0: Becoming the heartbeat ARCH
Mon Mar 28 16:22:35 2005
LGWR: Primary database is in CLUSTER CONSISTENT mode
Maximum redo generation record size = 132096 bytes
Maximum redo generation change vector size = 116476 bytes
Private_strands 3 at log switch
Thread 1 opened at log sequence 1755
Current log# 3 seq# 1755 mem# 0:
/opt/oracle/oradata/eygle/redo03.log
Successful open of redo thread 1
Mon Mar 28 16:22:36 2005
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Mon Mar 28 16:22:37 2005
Starting background process CTWR
CTWR started with pid=17, OS id=29892
Block change tracking service is active.
Mon Mar 28 16:22:37 2005
SMON: enabling cache recovery
Mon Mar 28 16:22:39 2005
Successfully onlined Undo Tablespace 1.
Mon Mar 28 16:22:39 2005
SMON: enabling tx recovery
Mon Mar 28 16:22:39 2005
Database Characterset is ZHS16GBK
Mon Mar 28 16:22:39 2005
Published database character set on system events channel
Mon Mar 28 16:22:42 2005
Starting background process QMNC
QMNC started with pid=18, OS id=29896
Mon Mar 28 16:22:44 2005
replication_dependency_tracking turned off
(no async multimaster replication found)
Mon Mar 28 16:22:45 2005
Starting background process MMON
Starting background process MMNL
MMON started with pid=19, OS id=29911
MMNL started with pid=20, OS id=29913
Mon Mar 28 16:22:46 2005
Completed: alter database open
Mon Mar 28 16:22:49 2005
db_recovery_file_dest_size of 10240 MB is 25.07% used. This is a
user-specified limit on the amount of space that will be used by this
database for recovery-related files, and does not reflect the amount of
space available in the underlying filesystem or ASM diskgroup. | |
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