履歴バックアップ制御ファイルデータベースのリカバリ
20826 ワード
oracle 10g incarnation / 。 log_archive_format %r ，
resetlogs ， incarnation ， resetlogs 。
RMAN> list incarnation;
List of Database Incarnations
DB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time
------- ------- -------- ---------------- --- ---------- ----------
1 1 ORCL 1358813460 PARENT 1 15-AUG-09
2 2 ORCL 1358813460 PARENT 945184 09-NOV-13
3 3 ORCL 1358813460 CURRENT 2181557 29-DEC-13select thread#,sequence#,first_change#,next_change# from v$archived_log;
2 55 2140766 2172246
2 56 2172246 2181556
2 1 2181557 2203709
THREAD# SEQUENCE# FIRST_CHANGE# NEXT_CHANGE#
---------- ---------- ------------- ------------
2 2 2203709 2224422
2 3 2224422 2258307
2 4 2258307 2258311
1 1 2237798 2280109
1 2 2280109 2280114
1 3 2280114 2280116
2 5 2280111 2280131
1 4 2280116 2280127
SQL> select thread#,sequence#,status from v$log;
THREAD# SEQUENCE# STATUS
---------- ---------- ----------------
1 3 INACTIVE
1 4 ACTIVE
2 5 INACTIVE
2 6 CURRENT以上が元の制御ファイルの情報です.V$log_も参照historyビュー.
--------------------------
RMAN> restore controlfile from '/home/oracle/c.ctl';
Starting restore at 31-DEC-13
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=17 instance=orcl2 device type=DISK
channel ORA_DISK_1: copied control file copy
output file name=+DATA/orcl/controlfile/current.260.835608817
output file name=+FRA/orcl/controlfile/current.256.835608825
Finished restore at 31-DEC-13
RMAN> list incarnation;
released channel: ORA_DISK_1
List of Database Incarnations
DB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time
------- ------- -------- ---------------- --- ---------- ----------
1 1 ORCL 1358813460 PARENT 1 15-AUG-09
2 2 ORCL 1358813460 CURRENT 945184 09-NOV-13rmanリカバリの試行
RMAN> recover database;
Starting recover at 31-DEC-13
Starting implicit crosscheck backup at 31-DEC-13
allocated channel: ORA_DISK_1
Finished implicit crosscheck backup at 31-DEC-13
Starting implicit crosscheck copy at 31-DEC-13
using channel ORA_DISK_1
Crosschecked 2 objects
Finished implicit crosscheck copy at 31-DEC-13
searching for all files in the recovery area
cataloging files...
cataloging done
List of Cataloged Files
=======================
File Name: +fra/ORCL/BACKUPSET/2013_12_31/ncnnf0_TAG20131231T092954_0.296.835608605
……
…… // db_recovery_file_dest
File Name: +fra/ORCL/AUTOBACKUP/2013_12_31/thread_1_seq_2.292.835607377
File Name: +fra/ORCL/ARCHIVELOG/2013_12_31/thread_1_seq_3.293.835607395
File Name: +fra/ORCL/ARCHIVELOG/2013_12_31/thread_2_seq_5.294.835607395
File Name: +fra/ORCL/ARCHIVELOG/2013_12_31/thread_1_seq_4.295.835607399
using channel ORA_DISK_1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 12/31/2013 09:36:12
RMAN-06094: datafile 8 must be restored
// datafile 8 ， 。RMAN> recover database skip tablespace wayde;
Starting recover at 31-DEC-13
using channel ORA_DISK_1
Executing: alter database datafile 8 offline
starting media recovery
……
media recovery complete, elapsed time: 00:00:16
Finished recover at 31-DEC-13
RMAN> list incarnation;
List of Database Incarnations
DB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time
------- ------- -------- ---------------- --- ---------- ----------
1 1 ORCL 1358813460 PARENT 1 15-AUG-09
2 2 ORCL 1358813460 PARENT 945184 09-NOV-13
3 3 ORCL 1358813460 CURRENT 2181557 29-DEC-13結論:履歴制御ファイルでデータベースをリカバリする場合、履歴制御ファイルの後に「表領域」、「ログファイル(activeまたはcurrent状態ではない)」、「制御ファイルにはあるが実際にはない」を新たに追加すると、リカバリ時に表領域が再構築され、ログは制御ファイルに準拠します.制御ファイルをバックアップした後に手動で表領域を削除した場合、リカバリ時にデータファイルoffline(sql文)または直接RMAN>recover database skip tablespace waydeを削除します.