在LINUX平台上手动创建多个实例(oracle11g)

原文地址：http://blog.csdn.net/sunchenglu7/article/details/39676659

如果条件允许，可用图形化界面创建更方便快捷

以root用户登录，敲./dbca,如果跳不出图形化界面，就用下面的手动创建

一、以oracle用户登录

二、获取oracle安装路径

[oracle@linux] echo $ORACLE_HOME

[oracle@linux] cd $ORACLE_HOME

[oracle@linuxoracle/product/11g/db] cd  dbs

三、创建新实例的参数文件

[[email protected] dbs]$ ls

hc_orcl2.dat  initdw.ora  initorcl.ora  lkORCL2    orapworcl2       spfileorcl.ora

hc_orcl.dat   init.ora    lkORCL        orapworcl  spfileorcl2.ora

[[email protected] dbs]$ pwd

/oracle/inst1/product/10.2.0/db_1/dbs

[[email protected] dbs]$ cp initorcl.ora initorcl3.ora

注：这里我们通过拷贝原实例参数文件的方法进行创建，然后再进行修改。

修改新实例的参数文件

orcl.__db_cache_size=184549376

orcl.__java_pool_size=4194304

orcl.__large_pool_size=4194304

orcl.__shared_pool_size=88080384

orcl.__streams_pool_size=0

*.audit_file_dest='/oracle/inst1/admin/orcl3/adump'

*.background_dump_dest='/oracle/inst1/admin/orcl3/bdump'

*.compatible='10.2.0.1.0'

*.control_files='/oracle/inst1/oradata/orcl3/control01.ctl','/oracle/inst1/oradata/orcl3/control02.ctl','/oracle/inst1/oradata/orcl3/control03.ctl'

*.core_dump_dest='/oracle/inst1/admin/orcl3/cdump'

*.db_block_size=8192

*.db_domain=''

*.db_file_multiblock_read_count=16

*.db_name='orcl3'

*.db_recovery_file_dest='/oracle/inst1/flash_recovery_area'

*.db_recovery_file_dest_size=2147483648

*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)'

*.job_queue_processes=10

*.log_archive_dest_1='location=/oracle/inst1/arch/orcl3'

*.open_cursors=300

*.pga_aggregate_target=94371840

*.processes=150

*.remote_login_passwordfile='EXCLUSIVE'

*.sga_target=285212672

*.undo_management='AUTO'

*.undo_tablespace='UNDOTBS1'

*.user_dump_dest='/oracle/inst1/admin/orcl3/udump'

创建新实例的相关目录：

[[email protected] ~]$ cd /oracle/inst1/admin/

[[email protected] admin]$ mkdir orcl3

[[email protected] admin]$ ls

orcl  orcl2  orcl3

[[email protected] admin]$ cd orcl3

[[email protected] orcl3]$ mkdir adump bdump cdump udump

[[email protected] orcl3]$ cd /oracle/inst1/oradata/

[[email protected] oradata]$ mkdir orcl3

[[email protected] oradata]$ ls

orcl  orcl2  orcl3

[[email protected] oradata]$ pwd

/oracle/inst1/oradata

[[email protected] oradata]$ ls

orcl  orcl2  orcl3

[[email protected] oradata]$ cd ..

[[email protected] inst1]$ ls

admin  arch  database  flash_recovery_area  libXp-1.0.0-8.1.el5.i386.rpm  oradata  oraInventory  product

[[email protected] inst1]$ cd arch

[[email protected] arch]$ ls

orcl  orcl2

[[email protected] arch]$ mkdir orcl3

[[email protected] arch]$ ls

orcl  orcl2  orcl3

启动实例测试

[[email protected] arch]$ export ORACLE_SID=orcl3

[[email protected] arch]$ sqlplus /nolog

SQL*Plus: Release 10.2.0.1.0 - Production on Wed Dec 5 17:46:40 2012

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

SQL> conn /as sysdba;

Connected to an idle instance.

SQL> startup nomount;

ORACLE instance started.

Total System Global Area  285212672 bytes

Fixed Size                  1218992 bytes

Variable Size              92276304 bytes

Database Buffers          188743680 bytes

Redo Buffers                2973696 bytes

SQL> select instance_name from v$instance;

INSTANCE_NAME

----------------

orcl3

创建密码文件：(该步骤一定要执行，否则SYS没有SYSDBA权限登录)

[email protected] arch]$ orapwd file=”/oracle/inst1/product/10.2.0/db_1/dbs/orapworcl3” password=oracle entries=10;

四、创建数据库

4.1、编写数据库创建脚本

下面为创建数据库的脚本：(注意：路径不要有空格)

CREATE DATABASE orcl5

   USER SYS IDENTIFIED BY sys

   USER SYSTEM IDENTIFIED BY manager

   LOGFILE GROUP 1 ('/mnt/sda3/oracle/oradata/orcl5/redo01.log') SIZE 20M,

           GROUP 2 ('/mnt/sda3/oracle/oradata/orcl5/redo02.log') SIZE 20M,

           GROUP 3 ('/mnt/sda3/oracle/oradata/orcl5/redo03.log') SIZE 20M

   MAXLOGFILES 5

   MAXLOGMEMBERS 5

   MAXLOGHISTORY 1

   MAXDATAFILES 100

   MAXINSTANCES 1

   CHARACTER SET US7ASCII

   NATIONAL CHARACTER SET UTF8

   DATAFILE '/mnt/sda3/oracle/oradata/orcl5/system01.dbf' SIZE 325M REUSE

   EXTENT MANAGEMENT LOCAL

   SYSAUX DATAFILE '/mnt/sda3/oracle/oradata/orcl5/sysaux01.dbf' SIZE 325M REUSE

   DEFAULT TABLESPACE tbs_1 datafile '/mnt/sda3/oracle/oradata/orcl5/tbs_1.dbf' size 50m

   DEFAULT TEMPORARY TABLESPACE temp

      TEMPFILE '/mnt/sda3/oracle/oradata/orcl5/temp01.dbf'

      SIZE 20M REUSE

   UNDO TABLESPACE undotbs1

      DATAFILE '/mnt/sda3/oracle/oradata/orcl5/undotbs01.dbf'

      SIZE 200M REUSE AUTOEXTEND ON MAXSIZE UNLIMITED;

4.3、验证是否创建成功

查询数据库状态

SQL> select status from v$instance;

STATUS

------------

OPEN

SQL>

4.4、运行后续脚本，创建数据字典及相关视图

SQL>conn sys as sysdba

SQL>@?/rdbms/admin/catalog.sql;

此过程可能需要10分钟左右

SQL>@?/rdbms/admin/catproc.sql;

此过程可能需要15分钟左右

SQL>@?/rdbms/admin/catblock.sql;

SQL>@?/rdbms/admin/catoctk.sql;

SQL>@?/rdbms/admin/owminst.plb;

SQL>conn system/ manager

SQL>@?/sqlplus/admin/pupbld.sql;

SQL>@?/sqlplus/admin/help/hlpbld.sql helpus.sql

 

五、客户端连接

5.1、监听文件配置（listener.ora）

SID_LIST_LISTENER =

  (SID_LIST =

    (SID_DESC =

      (SID_NAME = PLSExtProc)

      (ORACLE_HOME = /oracle/inst1/product/10.2.0/db_1)

      (PROGRAM = extproc)

    )

    (SID_DESC =

      (GLOBAL_DBNAME = orcl5)

      (ORACLE_HOME = /oracle/inst1/product/10.2.0/db_1)

      (SID_NAME = orcl5)

    )

  

    (SID_DESC =

      (GLOBAL_DBNAME = orcl3)

      (ORACLE_HOME = /oracle/inst1/product/10.2.0/db_1)

      (SID_NAME = orcl3)

    )

  )

LISTENER =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.14.54.199)(PORT = 1521))

    )

  )

5.2、本地服务名称配置（tnsnames.ora）

# Generated by Oracle configuration tools.

ORCL =

  (DESCRIPTION =

    (ADDRESS = (PROTOCOL = TCP)(HOST = 10.14.54.199)(PORT = 1521))

    (CONNECT_DATA =

      (SERVER = DEDICATED)

      (SERVICE_NAME = orcl)

    )

  )