同事误删除线上数据，所以需要从备份中找回数据恢复。真实屋漏偏逢连夜雨、船迟又遇打头风，前两天备份的磁盘坏块，现在只有rman

背景：

同事误删除线上数据，所以需要从备份中找回数据恢复。真实屋漏偏逢连夜雨、船迟又遇打头风，前两天备份的磁盘坏块，现在只有rman全备的.bak文件，没有控制文件和参数文件，所以现在需要考虑的是如何根据bak文件在备份数据库上恢复数据，从中找出被误删的数据。

1 通过catalog start with’’的方式来恢复

1.1手动创建控制文件

CREATE CONTROLFILE REUSE set DATABASE"powerdes" RESETLOGS ARCHIVELOG

MAXLOGFILES 16

MAXLOGMEMBERS 3

MAXDATAFILES 100

MAXINSTANCES 8

MAXLOGHISTORY 454

DATAFILE

'/home/oradata/powerdes/system01.dbf',

'/home/oradata/powerdes/sysaux01.dbf',

'/home/oradata/powerdes/undotbs01.dbf',

'/home/oradata/powerdes/users01.dbf',

'/home/oradata/powerdes/powerdesk01.dbf',

'/home/oradata/powerdes/plas01.dbf',

'/home/oradata/powerdes/pl01.dbf',

'/home/oradata/powerdes/help01.dbf',

'/home/oradata/powerdes/adobelc01.dbf',

'/home/oradata/powerdes/sms01.dbf',

'/home/oradata/powerdes/plcrm01.dbf'

LOGFILE

GROUP 1('/home/oradata/powerdes/redo03.log') SIZE 10M,

GROUP 2('/home/oradata/powerdes/redo02.log') SIZE 10M,

GROUP 3('/home/oradata/powerdes/redo01.log') SIZE10M,

GROUP 4('/home/oradata/powerdes/redo_dg_01.log') SIZE 10M,

GROUP 5('/home/oradata/powerdes/redo_dg_02.log') SIZE 10M,

GROUP 6('/home/oradata/powerdes/redo_dg_03.log') SIZE 10M

CHARACTER SET ZHS16GBK;

1.2，设置catalog start with 路径

searching for all files that match the pattern/tmp/2015-03-30/

List of Files Unknown to the Database

=====================================

File Name:/tmp/2015-03-30/full_POWERDES_20150330_3395.bak

File Name: /tmp/2015-03-30/rman_backup.log

File Name:/tmp/2015-03-30/arch_POWERDES_20150330_3396.bak

File Name:/tmp/2015-03-30/arch_POWERDES_20150330_3394.bak

Do you really want to catalog the abovefiles (enter YES or NO)? yes

cataloging files...

cataloging done

List of Cataloged Files

=======================

File Name:/tmp/2015-03-30/full_POWERDES_20150330_3395.bak

File Name:/tmp/2015-03-30/arch_POWERDES_20150330_3396.bak

File Name:/tmp/2015-03-30/arch_POWERDES_20150330_3394.bak

List of Files Which Where Not Cataloged

=======================================

File Name: /tmp/2015-03-30/rman_backup.log

RMAN-07517: Reason: The file header is corrupted

1.3 开始restore database恢复数据库

RMAN> restore database;

Starting restore at 01-APR-15

using channel ORA_DISK_1

RMAN-00571:===========================================================

RMAN-00569: =============== ERROR MESSAGESTACK FOLLOWS ===============

RMAN-00571:===========================================================

RMAN-03002: failure of restore command at04/01/2015 03:39:01

RMAN-06026: some targets not found -aborting restore

RMAN-06023: no backup or copy of datafile12 found to restore

RMAN-06023: no backup or copy of datafile11 found to restore

RMAN-06023: no backup or copy of datafile10 found to restore

RMAN-06023: no backup or copy of datafile 9found to restore

RMAN-06023: no backup or copy of datafile 8found to restore

RMAN-06023: no backup or copy of datafile 7found to restore

RMAN-06023: no backup or copy of datafile 5found to restore

RMAN-06023: no backup or copy of datafile 4found to restore

RMAN-06023: no backup or copy of datafile 3found to restore

RMAN-06023: no backup or copy of datafile 2found to restore

RMAN-06023: no backup or copy of datafile 1found to restore

RMAN>

PS：遗憾的是恢复失败，google了很久，，发现只能通过sys.dbms_backup_restore.restoreDatafileTo的方式来做不完全一致恢复。

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