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Oracle创建实例的最少参数需求
作者：eygle |【转载时请务必以超链接形式标明文章原始出处和作者信息及本声明】链接：http://www.eygle.com/archives/2006/05/intance_nomount_parameter.html
我们知道,Oracle在启动过程中,需要读取参数文件(pfile/spfile)来创建实例.Oracle在启动过程中,寻找参数文件的顺序为:spfile
而创建实例的过程中,Oracle需要的最少参数为一个,即db_name参数.
我们来看一个测试,启动一个任意设置的实例,本例ORACLE_SID=julia:
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[oracle@jumper dbs]$ export ORACLE_SID=julia SQL*Plus: Release 9.2.0.4.0 - Production on Mon May 8 11:08:36 2006 Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved. Connected to an idle instance. SQL> startup nomount; |
Oracle最后检查的文件为initjulia.ora,让我们创建这个文件,然后数据库实例即可创建:
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SQL> ! echo "db_name=julia" > /opt/oracle/product/9.2.0/dbs/initjulia.ora SQL> startup nomount; Total System Global Area 97588504 bytes |
我们可以看一下缺省的各类文件的存储地点:
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SQL> show parameter dump_dest NAME TYPE VALUE SQL> show parameter control_files NAME TYPE VALUE |
我们顺便看一下缺省的,警报日志中记录的信息:
| [oracle@jumper dbs]$ cat $ORACLE_HOME/rdbms/log/alert_julia.log Mon May 8 11:09:04 2006 Starting ORACLE instance (normal) Mon May 8 11:09:04 2006 WARNING: EINVAL creating segment of size 0x0000000006400000 fix shm parameters in /etc/system or equivalent LICENSE_MAX_SESSION = 0 LICENSE_SESSIONS_WARNING = 0 SCN scheme 2 Using log_archive_dest parameter default value LICENSE_MAX_USERS = 0 SYS auditing is disabled Starting up ORACLE RDBMS Version: 9.2.0.4.0. System parameters with non-default values: db_name = julia PMON started with pid=2 DBW0 started with pid=3 LGWR started with pid=4 CKPT started with pid=5 SMON started with pid=6 RECO started with pid=7 |
By eygle on 2006-05-08 10:08 | Comments (0) | Posted to FAQ | Edit |Pageviews:
