4 Preinstallation Requirements for Oracle Content DB Middle Tier

Note: Prior to installing Oracle Content DB middle tier, you must first install OracleAS Infrastructure (which contains Oracle Identity Management) and Oracle Database. Refer to Chapter 3, "Installing OracleAS Infrastructure and Oracle Database" for more details.

This chapter discusses necessary requirements that must be met prior to installing Oracle Content DB.

See Also: Appendix B, "Basic Installation Information" for other preinstallation requirements Chapter 2, "Planning for Oracle Content DB Deployment" in the Oracle Content Database Administrator's Guide for information about deployment configurations, sizing guidelines, and tablespaces for Oracle Content DB.

This chapter includes the following topics:

• Oracle Content DB Hardware Requirements

• Oracle Content DB Software Requirements

• Ports Used by Oracle Content DB

• Environment Variables

• Network Topics

• Prerequisite Checks Performed by Oracle Universal Installer

• Running Prerequisite Checks from the Command Line

Oracle Content DB Hardware Requirements

This section lists the hardware configurations required to install Oracle Content DB.

Oracle Universal Installer checks these requirements at the start of the installation process and warns you if any of these requirements are not met. Therefore, to save time, you can manually check only the remaining requirements.

You can also run the system checks performed by Oracle Universal Installer without doing an installation by running the following command, where the setup.exe executable is on the Oracle Content DB DVD.

SYSTEM_DRIVE:\> setup.exe -executeSysPrereqs

The results are displayed on the screen as well as written to a log file.

See Also: "Prerequisite Checks Performed by Oracle Universal Installer" for more information about the subset of checks performed

Table 4-1 Hardware Requirements for Microsoft Windows Systems

Item	Minimum Requirement	Checked by Oracle Universal Installer
Processor speed	450 MHz or faster; 2 GHz or faster recommended	Yes
Network	You can install Oracle Content DB on a computer that is not connected to a network. When you later change the network configuration, refer to the Oracle Content Database Administrator's Guide for information on reconfiguring Oracle Content DB.	No
IP	The IP address of a computer can be static or allocated using DHCP. Note: It is recommended that you install Oracle Content DB on systems with static IP addresses. If you later change the IP configuration, refer to the Oracle Content Database Administrator's Guide for information on reconfiguring Oracle Content DB.	No
Physical memory	Oracle Universal Installer checks the amount of physical memory on your computer and will not allow you to proceed if your computer does not meet the minimum memory requirements. Oracle recommends having at least 1 GB RAM of physical memory at the time of installation.	Yes
Available memory	Oracle Universal Installer checks the amount of available memory on your computer and will not allow you to proceed if your computer does not meet the minimum memory requirements. Oracle recommends having at least 512 MB of available memory at the time of installation.	Yes
Disk space	The disk space requirement for Oracle Content DB is 2 GB. To determine the amount of free disk space, in Windows Explorer, right click the drive into which you want to install Oracle Content DB and click Properties.	No
Space in TEMP directory	150 MB	Yes
Swap space	1535 MB of available swap space If necessary, refer to your operating system documentation for information about how to configure additional swap space.	Yes
Monitor	256-color display	Yes

Running Multiple Instances of Oracle Content DB on One Computer

If you are running multiple instances of Oracle Content DB on one computer, each corresponding instance of Application Server Control can consume significant memory. To free up memory, configure a single instance of Application Server Control to manage multiple instances of Oracle Content DB.

Oracle Content DB Software Requirements

Oracle Content DB depends upon Oracle Identity Management (part of OracleAS Infrastructure) and Oracle Database 10g. The Oracle Database must be registered with Oracle Internet Directory.

See Also: Chapter 3, "Installing OracleAS Infrastructure and Oracle Database"

Oracle Universal Installer checks that your computer includes any required operating system patches. If Oracle Universal Installer determines that some required patches are missing, it displays an error.

The Oracle Content DB middle tier runs in Oracle Application Server 10g Release 2 (10.1.2.0.2).

Ports Used by Oracle Content DB

Oracle Content DB and components of Oracle Application Server (such as Oracle HTTP Server, Oracle Application Server Web Cache, and Oracle Enterprise Manager 10g) use ports. Oracle Universal Installer assigns default port numbers or you can specify port numbers, including the port numbers under 1024.

See Also: Appendix D, "Default Port Numbers for Oracle Content DB" for a complete list of default port numbers

If a port is in use, Oracle Universal Installer chooses an available port.

To use the default port numbers for Oracle Application Server components, such as Oracle HTTP Server, Oracle Application Server Web Cache, and Oracle Enterprise Manager 10g, you do not have to do anything.

Notes: Oracle Universal Installer assigns the default ports only if the ports are not in use by other applications. If a default port is in use, Oracle Universal Installer tries other ports in the port number range for the component. For example, the default, non-SSL port on this middle tier for Oracle HTTP Server is port 80. If this port is in use by another application, Oracle Universal Installer assigns a port in the 7777 - 7877 range. If you plan to install multiple instances of Oracle products on the same computer, only the first instance that you install on the computer will use the default ports. When you install additional instances, Oracle Universal Installer will detect that the default ports are already in use by the first instance, and it will assign other ports to the additional instances.

Environment Variables

The operating system user who installs Oracle Content DB must set or unset certain environment variables.

This section discusses the following environment variables and whether they must be set or unset:

• ORACLE_HOME, ORACLE_SID, and NLS_LANG

• PATH, CLASSPATH, and Shared Library Path Environment Variables

• TEMP

ORACLE_HOME, ORACLE_SID, and NLS_LANG

ORACLE_HOME, ORACLE_SID, and NLS_LANG must not be set.

PATH, CLASSPATH, and Shared Library Path Environment Variables

Edit your PATH, CLASSPATH, and shared library path environment variables so that they do not reference any Oracle home directories.

TEMP

Oracle Universal Installer uses a temporary directory for swap space and checks for the TEMP environment variable to locate the temporary directory. By default, Oracle Universal Installer uses whatever directory you set for the TEMP environment variable. The directory must meet the requirements listed in Table 4-1.

If you do not set this environment variable, and the default directory does not have enough space, Oracle Universal Installer displays an error message that says the environment variable is not set. You can either set the environment variable to point to a different directory or free up enough space in the default directory. In either case, you must restart the installation.

Network Topics

Typically, the computer on which you want to install Oracle Content DB is connected to a network, has local storage to contain the Oracle Content DB installation, has a display monitor, and has an appropriate disk drive.

This section describes how to install Oracle Content DB on computers that do not meet the typical requirements and includes the following topics:

• Installing Oracle Content DB on Computers with Multiple Network Cards

• Copying the DVD to a Hard Drive and Installing from the Hard Drive

• Installing Oracle Content DB from a Remote DVD-ROM Drive

Installing Oracle Content DB on Computers with Multiple Network Cards

If you are installing Oracle Content DB on a computer with multiple network cards, Oracle Universal Installer uses the first names in the /etc/hosts file to determine the host name to use for IP address lookup.

If this is not the name you want to use, you can:

• Start up Oracle Universal Installer with the OUI_HOSTNAME parameter, if you do not want to edit the /etc/hosts file. Specify the host name that you want to use in this parameter, as in the following example:

  SYSTEM_DRIVE:\> setup.exe OUI_HOSTNAME=myserver.domain.com
  

Copying the DVD to a Hard Drive and Installing from the Hard Drive

Instead of installing from the Oracle Content DB DVD, you can copy the contents of the DVD to a hard drive and install the product from there. This provides for an easier solution if you plan to install many instances of Oracle Content DB on your network, or if the computers where you want to install Oracle Content DB do not have DVD-ROM drives.

You can also install Oracle Content DB from remote DVD-ROM drives.

See Also: "Installing Oracle Content DB from a Remote DVD-ROM Drive" for more information

Checking the Space Requirement

Ensure that the hard drive contains enough space to hold the contents of the Oracle Content DB DVD.

Installing Oracle Content DB from a Remote DVD-ROM Drive

If the computer where you want to install Oracle Content DB does not have a DVD-ROM drive, you can perform the installation from a remote drive. You must share the remote DVD-ROM drive through Network File System.

On the remote computer, which has the DVD-ROM drive:

1. Insert the Oracle Content DB DVD in to the DVD-ROM drive.

2. Ensure that the DVD-ROM drive is shared and create a mapped network drive.

On the local computer, access the DVD-ROM and click setup.exe to run Oracle Universal Installer.

Prerequisite Checks Performed by Oracle Universal Installer

Table 4-2 lists prerequisite checks performed by Oracle Universal Installer.

Table 4-2 Prerequisite Checks Performed by Oracle Universal Installer

Item	Description
Operating system version	See "Oracle Content DB Software Requirements" for supported versions
Operating system service packs	Oracle Universal Installer checks that your computer includes any required operating system patches. If Oracle Universal Installer determines that some required patches are missing, it displays an error.
Monitor	See Table 4-1, "Hardware Requirements for Microsoft Windows Systems" for monitor requirements
Physical memory	See Table 4-1, "Hardware Requirements for Microsoft Windows Systems" for physical memory requirements
Available memory	See Table 4-1, "Hardware Requirements for Microsoft Windows Systems" for available memory requirements
Swap space	See Table 4-1, "Hardware Requirements for Microsoft Windows Systems" for swap space requirements
TEMP space	See Table 4-1, "Hardware Requirements for Microsoft Windows Systems" for \tmp directory space requirements
Oracle home directory name	Oracle Universal Installer checks that the Oracle home directory name does not contain any spaces.
Path to the Oracle home directory	Oracle Universal Installer checks that the path to the Oracle home directory is not longer than 127 characters.
Oracle home directory contents	Oracle Universal Installer checks that the Oracle home directory does not contain any files that might interfere with the installation.
Oracle home directory	Always install Oracle Content DB in a new directory. Do not install Oracle Content DB in an existing Oracle home directory. For example, do not install Oracle Content DB into in an existing Oracle Application Server.
Cluster file system	Oracle Universal Installer checks that you are not installing Oracle Content DB in a cluster file system (CFS).
Application Server Control directories are writable	Oracle Universal Installer runs this check only if you are expanding Oracle Content DB or if you are reinstalling Oracle Content DB. Oracle Universal Installer checks that these directories are writable by the operating system user running the installer.
Application Server Control files exist	Oracle Universal Installer runs this check only if you are expanding Oracle Content DB or if you are reinstalling Oracle Content DB. Oracle Universal Installer checks that these files exist.
Database initialization parameters	Oracle Universal Installer checks to make sure that the database you want to use with Oracle Content DB has the required minimum values. See "Setting Required Database Initialization Parameters" for additional information.
Database character set	Oracle Universal Installer checks to make sure that the database character set is AL32UTF8.
Database version	Oracle Universal Installer checks that the version of the Oracle Database is 10.1.0.5, or later.

Running Prerequisite Checks from the Command Line

You can run the prerequisite checks without having to install Oracle Content DB by using the following single command:

SYSTEM_DRIVE:\> setup.exe -prereqChecker PREREQ_CONFIG_LOCATION=<DVD_SHARED_DIRECTORY>\stage\prereq -entryPoint oracle.contentdb.top_Core