Oracle EBS DB Init Parameters
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Oracle EBS里查看数据库参数
路径:System Administration > Oracle Applications Manager > Initialization Parameters或者
路径:System Administration > Oracle Applications Manager > System Configuration Overview > Database > Init.ora Parameters
可以查看DB的数据库parameter(init.ora或者pfile parameter)
关于Oracle Parameter可以参见我之前写得帖子:Oracle Parameters
如果是使用的init<sid>.ora的话,这个DB参数文件默认放在$RDBMS_ORACLE_HOME/dbs/init<sid>.ora
你可以在这个文件中修改DB参数,注意,修改完之后,需要重启数据库才能生效。
EBS的DB init.ora参数文件的设置
另外这里有两篇不错的metalink notes可以帮助你来设置EBS的init.ora参数文件,给出了一些设置的建议
Note: 216205.1 - Database Initialization Parameters for Oracle Applications Release 11i
Note: 396009.1 - Database Initialization Parameters for Oracle Applications Release 12
Index for Note 396009.1
This document describes the database initialization parameter settings required for Oracle E-Business Suite Release 12.
- Section 1: Common Database Initialization Parameters For All Releases
- Section 2: Release-Specific Database Initialization Parameters For Oracle 10g Release 2
- Section 3: Release-Specific Database Initialization Parameters For Oracle 11g Release 1
- Section 4: Release-Specific Database Initialization Parameters For Oracle 11g Release 2
- Section 5: Using System Managed Undo (SMU)
- Section 6: Temporary Tablespace Setup
- Section 7: Database Initialization Parameter Sizing
* The document consists of a common section, which provides a common set of database initialization parameters used for all releases of the Oracle Database, followed by several release-specific sections, which list parameters and settings required for a particular release of the Oracle Database.
* Put together, the parameters from the common section and appropriate release-specific section formulate a complete set of database initialization parameters.
* Parameters may appear on a removal list either because they are obsolete, or because the default value is required and no other value may be set.
* In the various parameter lists, check for comments giving any platform-specific exceptions. Such comments will apply only to the exact platform mentioned: for example, a reference to HP-UX (PA-RISC) will not apply to HP-UX (Itanium IA-64).
* The "X" notation used in the release-specific section denotes all patchset releases within that major version. For example, "10.2.0.X" refers to all releases of 10.2.0, such as 10.2.0.2 and 10.2.0.3.
* Oracle E-Business Suite Release 12 requires Oracle Database 10g Release 2 (10.2.0.2) Enterprise Edition as a minimum release level and edition. No earlier releases, or other editions of any release, may be used.
Database Initialization Parameter Sizing
关于DB Parameter Sizing,Oracle根据用户数提供了一个参考的设置列表
Footnote 1
The parameter sga_target should be used for Oracle 10g or 11g based environments such as Release 12. This replaces the parameter db_cache_size, which was used in Oracle 9i based environments. Also, it is not necessary to set the parameter undo_retention for 10g or 11g-based systems, since undo retention is set automatically as part of automatic undo tuning.
Enabling the 11g Automatic Memory Management (AMM) feature is supported in EBS, and has been found to be useful in scenarios where memory is limited, as it will dynamically adjust the SGA and PGA pool sizes. AMM is enabled by using the memory_target and memory_max_target initialization parameters. MEMORY_TARGET specifies the system-wide sharable memory for Oracle to use when dynamically controlling the SGA and PGA as workloads change. The memory_max_target parameter specifies the maximum size that memory_target may take. AMM has proven useful for small to mid-range systems as it simplifies both the configuration and management. However, many customers with large production systems have experienced better performance with manually sized pools (or large minimum values for the pools). On Linux, Hugepages has resulted in improved performance; however, this configuration is not compatible with AMM. For large mission-critical applications systems, it is advisable to set sga_target with a minimum fixed value for shared_pool_size and pga_aggregate_target.
Footnote 2
The total memory required refers to the amount of memory required for the database instance and associated memory, including the SGA and the PGA. You should ensure that your system has sufficient available memory in order to support the values provided above. The values provided above should be adjusted based on available memory so as to prevent paging and swapping.
转载请注明出处:http://blog.csdn.net/pan_tian/article/details/7728738
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