ORACLE11G R2创建回复目录
环境为AIX+ORACLE11G R2 RAC
1.用SYSDBA权限连接到数据库，并在RMAN表空间中创建RMAN账号和回复目录：
[oracle@sfc3rc1:/]$sqlplus / as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Wed Jul 8 16:24:34 2015
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
SQL> create tablespace rman;
Tablespace created.
SQL> select file_name,tablespace_name from dba_data_files;
FILE_NAME TABLESPACE_NAME
-------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------------------------- ------------------------------------------------- ------------------------------
+DATA/askey/datafile/users.259.865164449 USERS
+DATA/askey/datafile/undotbs1.258.865164449 UNDOTBS1
+DATA/askey/datafile/sysaux.257.865164447 SYSAUX
+DATA/askey/datafile/system.256.865164447 SYSTEM
+DATA/askey/datafile/undotbs2.261.865164771 UNDOTBS2
+DATA/askey/datafile/mynew_tablespace.263.884530011 MYNEW_TABLESPACE
+DATA/askey/datafile/rman.264.884537743 RMAN
7 rows selected.
SQL> grant recovery_catalog_owner to rman identified by oracle;
SQL> alter user rman default tablespace rman
2 quota unlimited on rman;
2.在数据库中存在一个RMAN用户账号，因此启动RMAN，连接到目录，并使用create catalog命令来初始化存储库：
[oracle@sfc3rc1:/]$rman catalog rman/oracle@ASKEY
Recovery Manager: Release 11.2.0.4.0 - Production on Wed Jul 8 17:06:07 2015
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to recovery catalog database
RMAN> create catalog
error creating db
ORACLE error from recovery catalog database: ORA-00955: name is already used by an existing object
ORACLE error from recovery catalog database: ORA-00942: table or view does not exist
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-06433: error installing recovery catalog
这里创建catalog的时候出现上面的报错，catalog已经被创建过，清除后重新创建。
RMAN> drop catalog
recovery catalog dropped
RMAN> create catalog
recovery catalog created
3.对于每一个使用RMAN执行备份和回复的数据库，必须在RMAN存储库中对它们进行注册。该操作记录诸如目标数据库模式和数据库的唯一ID（DBID）等信息。只需注册目标数据库一次，随后连接到目标数据库的RMAN会话将自动引用存储库中的正确的元数据。
[oracle@sfc3rc1:/]$rman target / catalog rman@ASKEY
Recovery Manager: Release 11.2.0.4.0 - Production on Thu Jul 9 09:32:07 2015
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: ASKEY (DBID=3715509859)
recovery catalog database Password:
connected to recovery catalog database
RMAN> register database;
database registered in recovery catalog
starting full resync of recovery catalog
full resync complete