三种Oracle RMAN备份加密策略 - 数据库编程

85935? ? ? Ckp time: 08-JUN-15

重启进入mount状态，尝试恢复。

SQL> shutdown immediate;

Database closed.

Database dismounted.

ORACLE instance shut down.

RMAN> connect target /

connected to target database (not started)

RMAN> startup mount;

Oracle instance started

database mounted

Total System Global Area? ? 2087780352 bytes

Fixed Size? ? ? ? ? ? ? ? ? ? 2254824 bytes

Variable Size? ? ? ? ? ? ? ? 553650200 bytes

Database Buffers? ? ? ? ? ? 1526726656 bytes

Redo Buffers? ? ? ? ? ? ? ? ? 5148672 bytes

尝试进行恢复。

RMAN> restore database ;

Starting restore at 08-JUN-15

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=131 device type=DISK

（篇幅原因，有省略……）

channel ORA_DISK_1: reading from backup piece +RECO/sicsstb/backupset/2015_06_08/nnndf0_tag20150608t093842_0.263.881833123

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

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

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

RMAN-03002: failure of restore command at 06/08/2015 09:46:38

ORA-19870: error while restoring backup piece +RECO/sicsstb/backupset/2015_06_08/nnndf0_tag20150608t093842_0.263.881833123

ORA-19913: unable to decrypt backup

ORA-28365: wallet is not open

备份集合被加密，不能读取。只能进行解密之后才能使用。

RMAN> set decryption identified by 'test';

executing command: SET decryption

之后再进行恢复操作。

RMAN> restore database;

Starting restore at 08-JUN-15

using channel ORA_DISK_1

channel ORA_DISK_1: starting datafile backup set restore

channel ORA_DISK_1: specifying datafile(s) to restore from backup set

channel ORA_DISK_1: restoring datafile 00001 to +DATA/sicsstb/datafile/system.256.878897771

channel ORA_DISK_1: restoring datafile 00002 to +DATA/sicsstb/datafile/sysaux.257.878897773

channel ORA_DISK_1: restoring datafile 00003 to +DATA/sicsstb/datafile/undotbs1.258.878897773

channel ORA_DISK_1: restoring datafile 00004 to +DATA/sicsstb/datafile/users.259.878897773

channel ORA_DISK_1: restoring datafile 00005 to +DATA/sicsstb/datafile/example.265.878897857

channel ORA_DISK_1: reading from backup piece +RECO/sicsstb/backupset/2015_06_08/nnndf0_tag20150608t093842_0.263.881833123

channel ORA_DISK_1: piece handle=+RECO/sicsstb/backupset/2015_06_08/nnndf0_tag20150608t093842_0.263.881833123 tag=TAG20150608T093842

channel ORA_DISK_1: restored backup piece 1

channel ORA_DISK_1: restore complete, elapsed time: 00:00:35

Finished restore at 08-JUN-15

RMAN> recover database;

Starting recover at 08-JUN-15

using channel ORA_DISK_1

starting media recovery

media recovery complete, elapsed time: 00:00:00

Finished recover at 08-JUN-15

RMAN> alter database open;

database opened

那么，最后如何关闭这个属性呢？使用set encryption即可。

RMAN> set encryption off;

executing command: SET encryption

三种Oracle RMAN备份加密策略(二)