Oracle8i Installation Guide
Release 3 (8.1.7)

Part Number A87434_01
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System Requirements

This chapter describes the software dependent space requirements for installing Oracle8i on SGI IRIX. Verify that your system meets these requirements before you start an installation. This chapter contains the following sections:

Installation Overview

To install Oracle8i, perform the following steps:

  1. Satisfy Prerequisites: Make sure that the system meets the hardware, software, memory, and disk space requirements for the products that you want to install. These requirements and restrictions are described in this chapter.

  2. Pre-Installation: Make sure that the UNIX environment is properly set up and complete the pre-installation tasks for the products that you want to install. See Chapter 2 for more information.

  3. Installation: Use the Oracle Universal Installer provided on the software CD-ROM to install Oracle products. See Chapter 3 for more information.

  4. Post-Installation: Create database objects, establish the user environment, and configure the installed Oracle products for the system. See Chapter 4 for more information.

  5. Client Installations: If you want to install client tools, applications, and client interfaces not included on the Oracle8i Release 3 (8.1.7) for SGI IRIX CD-ROM, check the requirements and instructions in the documentation for those products.

Product Categories and Installation Types

There are three product categories included with Oracle8i release 3 (8.1.7) for SGI IRIX:

Each product category provides multiple installation types. Table 1-1 provides an overview of these product categories and installation types. For descriptions and release numbers of individual software products included on the Oracle8i Release 3 (8.1.7) for SGI IRIX CD-ROM, refer to Appendix A.

Table 1-1 Oracle8i Product Categories and Installation Types 
Product Category  Installation Types 

Oracle8i Enterprise Edition 


    Installs a preconfigured starter database, licensable Oracle options, networking services, Oracle utilities, Oracle Enterprise Manager Console (including enterprise management tools), and online documentation. This installation type is recommended for users who want the set of products most commonly used for standard database environments.


    Gives you the option of installing a preconfigured starter database, networking services, Oracle Enterprise Manager Console (including enterprise management tools), and Oracle utilities. This installation type is recommended for users who want a minimal database package.


    Lets you selectively install products from the preceding installation types and customize your database and networking configurations.


Oracle8i Client 


    Installs the Oracle Enterprise Manager Console (including enterprise management tools), networking services, utilities, basic client software, and online documentation.


    Installs development tools and interfaces for creating applications that access an Oracle8i database. This installation package includes precompilers, networking services, and documentation.

Application User

    Provides networking services and support files that enable database application users to connect to and interact with an Oracle8i database.


    Lets you selectively install products from the preceding installation types.


System Installation Requirements

Verify that your system meets the requirements described in the following sections before you install Oracle8i release 3 (8.1.7) products.


You cannot complete an installation if your system does not meet the minimum requirements for the Oracle products that you select. 

Hardware Requirements

To install the Oracle8i products included with this release, your system must meet the minimum hardware requirements listed in Table 1-2.

Table 1-2 Hardware Requirements
Hardware  Requirements 


A minimum of 128 MB is required to install Oracle8i products. Oracle8i Client products require 64 MB. 

Swap Space  

Twice the amount of RAM or at least 400 MB, whichever is greater, is recommended for most systems. 

CD-ROM Device  

A CD-ROM drive supported by SGI IRIX is required. Oracle uses ISO 9660 format CD-ROM discs with RockRidge extensions. 

Random Access Memory Requirements

To determine the amount of random access memory installed in your system, enter the following command:

$ /sbin/hinv | grep mem
Swap Space Requirements

To determine the amount of swap space currently configured in your system, enter one of the following commands and multiply the value shown in the BLOCKS column by 512:

$ swap -l

Disk Space Requirements

The Oracle Universal Installer allows you to choose your product category and installation type as described in Table 1-1. Your choice determines how much disk space you require, as shown in Table 1-3 and Table 1-4. Disk space requirements shown do not include the size of your database. A production Oracle database server supporting many users requires significantly greater disk space and memory.


These are approximate values that might vary slightly at installation time. 

Table 1-3 Disk Space Requirements for Oracle8i Enterprise Edition 
Installation Type  Required Disk Space 


2200 MB 


1950 MB 


Up to 2300 MB 

Table 1-4 Disk Space Requirements for Oracle8i Client 
Installation Type  Required Disk Space 


1300 MB 


1100 MB 

Application User 

1000 MB 


Up to1300 MB 

Temporary Disk Space Required by the Oracle Universal Installer

The Oracle Universal Installer requires up to 75 MB of space in the /tmp directory. If you do not have enough space in the /tmp directory, set the TMPDIR environment variable to specify a directory with sufficient space.

Operating System Software Requirements

To install the Oracle8i products included with this release, your system must meet the operating system requirements listed in Table 1-5.

Table 1-5 Operating System Software Requirements 
OS Software  Requirements 

Operating System  

IRIX 6.5.x (where x is 8 or greater) with version (or later) of the IRIS Development Option Database Accelerator 3.0, for Origin 200 and 2000 and Challenge R4400 and R10000, running IRIX 6.5. 

Operating System Patch 

Use the latest kernel patch for SGI IRIX, SG0003996. 

Window Manager  

X-windows must be installed on the system that you use to run the Installer.

Character mode installations are not supported for Oracle8i release 3 (8.1.7). See "Character Mode Installer" for more information. 

Required Executables 

The following executables must be present in the /usr/bin directory: make, ar, ld, nm

Operating System Information

To determine your current operating system information, enter the following command:

$ uname -a

Operating System Patches

To determine which operating system patches are installed, enter the following command:

$ /usr/sbin/versions

For information on the options of the versions command, see the operating-system documentation.

Window Manager

To determine if the X-windows system is configured correctly on your local system, enter the following command:

$ /usr/bin/x11/xclock

If a clock is not displayed on your screen, X-windows is not configured correctly. See "DISPLAY" for instructions on configuring X-windows.

Required Executables

To determine if you are using the correct system executables, enter the following commands:

$ /usr/bin/which make
$ /usr/bin/which ar
$ /usr/bin/which ld
$ /usr/bin/which nm

Each command should specify the /usr/bin directory. If not, add the /usr/bin 
directory to the beginning of the PATH environment variable in the current shell. 
See "PATH" for instructions on setting the PATH variable.

Online Documentation Requirements

To view the online documentation included on the Oracle8i CD-ROM, use a web browser such as Netscape Navigator 4.0 or higher running on a UNIX system. To view PDF documents, you must use Adobe Acrobat Reader version 3.0 or higher. You can download Adobe Acrobat Reader from:

Additional Product-Specific Installation Requirements

This section provides product-specific information in addition to the hardware and software requirements provided earlier in this chapter. For descriptions of these products, see Appendix A.

Oracle8i and Options

Table 1-6 provides information on Oracle8i and options restrictions and requirements.

Table 1-6 Oracle8i and Options Restrictions, Requirements, and Installation Tasks
Product Name  Restrictions and Requirements 

Oracle interMedia, release 8.1.7 

You must have at least 10 MB of additional disk space available for the interMedia Text data dictionary. 

Oracle Visual Information Retrieval, release 8.1.7 

Requires Oracle interMedia, 8.1.7 

Tools and Precompilers

Table 1-8 provides information on restrictions and requirements for tools and precompilers.

Table 1-7 Tool and Precompiler Restrictions and Requirements 
Product Name  Restrictions and Requirements 

Oracle Data Migration Assistant, release 8.1.7 

An Oracle7 database must be at least release 7.1.4 to be migrated. An Oracle8 database must be at least release to be upgraded. An Oracle8i database must be at least version 8.1.5 to be upgraded. 

Oracle8i JVM, release 8.1.7, (includes Java Virtual Machine (JVM) and Java utilities 

See the Java README on the Oracle8i CD-ROM for restrictions and requirements. 

Pro*C/C++, release 8.1.7 

MIPSpro C compiler version or later. 

Pro*FORTRAN, release 1.8.52 

Requires MIPSpro FORTRAN version or later. 

Table 1-8 Tool and Precompiler Restrictions and Requirements 
Product Name  Restrictions and Requirements 

Networking and System Management Products

All network products require the underlying software and operating system libraries for the supported network. The network software must be installed and running before you install Net8 products. Refer to the operating system and networking product documentation for more information on pre-installation requirements for Net8. Net8 release 8.1.7 products require Oracle8i release 3 (8.1.7).

Table 1-9 describes networking and system management product restrictions and requirements.

Table 1-9 Networking and system Management Product Restrictions and Requirements
Product Name  Restrictions and Requirements 

Oracle Advanced Security: Export Edition, release 8.1.7 

See Table 1-10 for information on Oracle Advanced Security authentication support requirements. 

Oracle TCP/IP with SSL Protocol Support, release 8.1.7 

SSL 3.0 or later. 

Oracle Advanced Security

Oracle Advanced Security (OAS) is an add-on product to the standard Net8 Server or Net8 Client. OAS must be purchased and installed on both the server and the client.

OAS release 8.1.7 requires Net8 release 8.1.7 and supports Oracle8i Enterprise Edition. Install OAS on each server and client where OAS is required.

Table 1-10 describes requirements for authentication protocols supported by OAS. See the Oracle Advanced Security Administrator's Guide for additional information.


You do not need any additional authentication protocol software to relink Oracle products. However, Oracle does not provide the third-party authentication servers (for example, Kerberos). The appropriate authentication server for these protocols must be installed and configured separately. Secure Socket Layer is provided and always installed with OAS.  

Table 1-10 Supported Authentication Methods and Requirements
Authentication Method  Requirements 


MIT Kerberos Version 5, release 1.1.

The Kerberos authentication server must be installed on a physically secure system. 

Identix Biometric 

Identix hardware and driver installed on each Biometric Manager station and client. 

Secure Socket Layer (SSL) 

A wallet that is compatible with the Oracle Wallet Manager version 2.1. Wallets created in earlier releases of the Oracle Wallet Manager are not forward compatible. 

SGI IRIX and Installation-Specific Issues and Restrictions

The following issues and restrictions can affect the installation or use of Oracle8i on SGI IRIX. Check the release notes that accompany this release and the README files in the $ORACLE_HOME/relnotes directory before using Oracle8i. For release 3 (8.1.7), the README files are uncompressed and linked to the top-level HTML file in the doc directory. README files for other products on the Oracle8i CD-ROM are in the doc or admin/doc directories for the respective products.

Concurrent Process Limit

The number of concurrent Oracle processes (INITSID.ORA parameter PROCESSES) for each Oracle system is limited by the SGI IRIX imposed limit for the maximum number of semaphore identifiers.

File Systems

The Oracle8i server must be able to verify that file writes have been made to disk. File systems that do not support this verification are not supported for use with Oracle databases, although Oracle software can be supported on them.

Using Hummingbird Exceed

If you are using the Hummingbird Exceed X-windows server while installing and using Oracle8i, set the window manager to run in Native mode so that Microsoft windows functions as the window manager. See the Exceed documentation for instructions on configuring the window manager.

Re-Installing Oracle8i Release 3 (8.1.7)

If you re-install Oracle8i Server into an Oracle home directory where Oracle8i Server release 3 (8.1.7) is already installed, you must also re-install any product options, such as Oracle Partitioning, that were enabled before you began the re-installation.

New Oracle Home Directory

Oracle Corporation recommends that you install Oracle8i release 3 (8.1.7) products into a new Oracle home directory. Do not install Oracle8i release 3 (8.1.7) into an Oracle home directory that already contains Oracle products.

If you must install Oracle8i release 3 (8.1.7) into an Oracle home directory that contains release 8.1.5 or release 8.1.6 products, remove the release 8.1.5 products with Oracle Universal Installer before beginning the new installation.

Backing Up the Script

After the successful installation of Oracle8i, make a copy of the $ORACLE_HOME/ script and and save it to the $ORACLE_HOME/ file. If you install another product category (such as Oracle8i Management Infrastructure) into the same Oracle home directory, Oracle Universal Installer deletes the content of the script during the installation. If you require the original script, you can recover it from the $ORACLE_HOME/ file.

Java Runtime Environment

Oracle Java applications such as the Oracle Universal Installer use the Java Runtime Environment (JRE) provided with this installation. This JRE is certified for use with Oracle8i and is the only one supported to run with Oracle8i applications. Only modify this JRE with a patch provided by Oracle Support Services.

The oraInventory directory can contain multiple versions of the JRE. Each JRE can be used by one or more products or releases. The Installer creates the oraInventory directory the first time it is run. The oraInventory directory keeps an inventory of products that it installs on your system as well as other installation information. The location of the oraInventory directory is defined in the /var/opt/oracle/oraInst.loc file.

Products in an Oracle home directory access the JRE through a symbolic link in the $ORACLE_HOME/JRE directory to the actual location of a JRE within the inventory. Only modify the symbolic link using a patch provided by Oracle Support Services.

Character Mode Installer

Oracle no longer provides a character mode installer. However, you can configure the Oracle Universal Installer to perform a non-interactive installation of Oracle products. You can run the Installer in non-interactive mode directly from your system's X-windows console or through an X-terminal or PC X-terminal on a remote system. For more information on the non-interactive installation of Oracle products, see "Non-Interactive "Silent" Installation and Configuration".

Upgrading and Migrating

If you are upgrading an existing system, see Oracle8i Migration for more information on upgrade and migration.

It is possible to migrate an Oracle7 database, release 7.1.4 or higher, or upgrade an Oracle8 database, release 8.0.3 or higher, to Oracle8i release 3 (8.1.7). To migrate from an Oracle7 database lower than release 7.1.4, you must first upgrade to an Oracle7 database, release 7.1.4 or higher, and then use the Oracle Data Migration Assistant to migrate to Oracle8i.


The Migration Utility is available as a stand alone product. 

Optimal Flexible Architecture

Optimal Flexible Architecture (OFA), the Oracle standard set of configuration guidelines for Oracle databases, is supported, but not enforced, by the Oracle Universal Installer. The starter database included with the Typical installation type of Oracle8i Enterprise Edition is created under a single mount point.

Very Large Memory

Oracle8i with Very Large Memory (VLM) can support more than 2 GB of virtual address space for each process. Both the SGA and PGA can each now exceed 2 GB of memory.

Very Large Files


The ulimit command is only available in the Korn and Bourne shell. 

Oracle8i release 3 (8.1.7) includes native support for files greater than 2 GB. Check your shell to determine whether it imposes a limit.

To check current soft shell limits, enter the following command:

$ ulimit -Sa

To check maximum hard shell limits, enter the following command:

$ ulimit -Ha

Multiply the file (blocks) value by 512 to obtain the maximum file size imposed by the shell. A value of unlimited is the operating system default (the maximum value of 1 TB). Table 1-11 lists Oracle file size limits. The DB_BLOCK_SIZE parameter is defined in the $ORACLE_HOME/dbs/initsid.ora file.

Table 1-11 Oracle File Size Limits
File Type  Maximum Size in Bytes 

Datafiles where DB_BLOCK_SIZE is 2048 


Datafiles where DB_BLOCK_SIZE is 4096 


Datafiles where DB_BLOCK_SIZE is 8192 


Datafiles where DB_BLOCK_SIZE is 16384 


Datafiles where DB_BLOCK_SIZE is 32768 


Import/Export file 


SQL*Loader file 


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