RMAN之恢复服务器参数文件

最新推荐文章于 2024-02-26 21:13:10 发布

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最新推荐文章于 2024-02-26 21:13:10 发布 · 1k 阅读

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本文介绍了如何在RMAN中恢复丢失的服务器参数文件SPFILE，包括将数据库置于归档模式，执行全库备份，删除原有参数文件，然后通过RMAN恢复SPFILE，并详细阐述了恢复过程中设置DBID的必要性，以及如何从备份中直接还原SPFILE为PFILE。

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1.首先将数据库至于归档模式。

[oracle@BD02 ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Tue Mar 15 20:39:22 2016

Copyright (c) 1982, 2013, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount
ORACLE instance started.

Total System Global Area 1653518336 bytes
Fixed Size		    2253784 bytes
Variable Size		 1023413288 bytes
Database Buffers	  620756992 bytes
Redo Buffers		    7094272 bytes
Database mounted.

SQL> alter database archivelog;

Database altered.

SQL> alter database open;

Database altered.

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

2.做一次全库备份

[oracle@BD02 ~]$ rman target /

Recovery Manager: Release 11.2.0.4.0 - Production on Tue Mar 15 20:40:52 2016

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

connected to target database: ORCL (DBID=1434005102)

RMAN> backup database plus archivelog;


Starting backup at 15-MAR-16
current log archived
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=42 device type=DISK
channel ORA_DISK_1: starting archived log backup set
channel ORA_DISK_1: specifying archived log(s) in backup set
input archived log thread=1 sequence=24 RECID=1 STAMP=906583293
channel ORA_DISK_1: starting piece 1 at 15-MAR-16
channel ORA_DISK_1: finished piece 1 at 15-MAR-16
piece handle=/u01/app/oracle/fast_recovery_area/ORCL/backupset/2016_03_15/o1_mf_annnn_TAG20160315T204