Application Tier File System Architecture
Oracle DB Server
Oracle Home The location of the 10g R2 ORACLE_HOME (database home), which contains files for running and maintaining the RDBMS.
Data Top (SYS) ==> Derived from the Base Install directory, this is the mount point for all database system files.
Data Top (LOG) ==> Derived from the Base Install directory, this is the mount point for all database log files.
Data Top (TXN) ==> Derived from the Base Install directory, this is the mount point for all transaction data and index files.
Data Top (ARCHIVE) ==>Derived from the Base Install directory, this is the mount point for all archive, media, advanced queue, summary,and undo files.
ORACLE_HOME(tech_st) = 4.2G
DATA_TOP(apps_st) = 128G
Oracle Application Server
Base Install directory ==> The top-level directory that Rapid Install uses to install the Applications node technology stack . All subdirectory names are derived from this directory.
Instance directory ==> The top-level directory for an Applications instance. This directory is referred to as the Instance Home, and denoted by the environment variable $INST_TOP.
COMMON_TOP ==> Holds directories for files used across products or in conjunction with third-party products. It contains the following subdirectories:
• admin - contains several subdirectories used for concurrent manager log and out directories, scripts used during installation,and scripts used for daily maintenance of the instance.
• html - contains files used by html-based products such as JSP files, java scripts, xml files, and style sheets.
• java - location of all JAR files. Also holds third-party Java files and other zip files.
• portal - contains Rapid Install Portal files.The Rapid Install Portal is a web page thatprovides access to post-installation tasks,Server Administration scripts, installation documentation, and online help.
• temp - used for caching by certain processes such as Oracle Reports.
• util - contains third-party utilities such as JDK, JRE, and Unzip.
Tools ORACLE_HOME ==> The AS 10.1.2 ORACLE_HOME directory, used for the Developer 10i products (Forms and Reports).
Web ORACLE_HOME ==> The AS 10.1.3 ORACLE_HOME directory, used for the Oracle HTTP Server. Sometimes also referred to as the Java ORACLE_HOME. Temp Directory Contains temporary files. This directory is not used during installation.
APPL_TOP(apps_st)=19G
COMMON_TOP(apps_st)=3.1G
ORACLE_HOME(tech_st)=2.6G
INST_TOP=474M
Total Requried =159G
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