1    Introduction to Tru64 UNIX

This chapter introduces the Tru64 UNIX operating system and provides a description of its features. The following topics are discussed:

• The major features of the operating system, its history from its OSF/1 genesis, and a summary of the standards to which it conforms (Section 1.1)

• Product features and enhancements that support Enterprise applications, high performance technical computing, business intelligence, and Internet communications (Section 1.2)

• Performance improvements to the operating system (Section 1.3)

• Optional components that can help meet your computing needs (Section 1.4)

• The components of the operating system and how they are packaged (Section 1.5)

1.1    Overview

The Tru64 UNIX operating system delivers many features that raise it to the highest level of performance, scalability, and availability, yet make it simple to manage and operate.

Tru64 UNIX Version 5.0A continues to offer warranted Year 2000 readiness. (The first Year 2000-ready release was Version 4.0D in January 1998.) For users seeking to expand their information technology capabilities while increasing performance and maintaining the highest level of availability, Compaq offers the best industry UNIX solution.

Compaq Tru64 UNIX is the most time-tested 64-bit UNIX operating system you can buy. It brings new strengths, with features that:

• Dramatically simplify system management by offering a choice of management interfaces

• Substantially reduce the complexity of installation, setup, and management

• Reduce the total cost of ownership by offering familiar interfaces, utilities with a common look and feel, and automation -- thereby minimizing the need for training

• Grow to multiple terabyte configurations, giving users the flexibility to satisfy their growing business needs

• Increase performance in file system, storage management, and system networking

• Deliver very high integration between UNIX and Windows NT

• Fill users' highest availability needs with the addition of Compaq TruCluster Server Software Version 5.0A

1.1.1    Product History

Tru64 UNIX is the Compaq implementation of the Open Software Foundation Version 1.0 and Version 1.2 technology and the Motif Version 1.2.5 graphical user interface and programming environment. In addition, Tru64 UNIX supports the full features of the X Window System, Version 11, Release 6.3 (X11R6.3).

The Tru64 UNIX operating system is a multiuser/multitasking, 64-bit, advanced kernel architecture based on Carnegie Mellon University's Mach Version 2.5 kernel design with components from Berkeley Software Distribution (BSD) Versions 4.3 and 4.4, UNIX System Laboratories System V Release 4.0, other software sources, the public domain, and from Compaq Computer Corporation.

Previous versions of Tru64 UNIX were known as DIGITAL UNIX and, in its initial offering, DEC OSF/1.

1.1.2    Product Description

Tru64 UNIX is supported on all Alpha servers and workstations with 64 MB of memory.

The operating system incorporates several performance enhancements either developed or extended by Compaq, including wired memory, virtual memory, and Unified Buffer Cache; UNIX File System file block clustering and cached writes over NFS; IP Multicasting, path MTU discovery, and optimized TCP/IP; and quick-started shared libraries.

With Tru64 UNIX you have a clear and concise system administration environment (including graphics, Web-based, and character-cell) that:

• Simplifies your system administration tasks

• Enables an update installation that does not overwrite system files, or performs a full installation that quickly gets your system up and running

• Supports loadable drivers and other kernel subsystems, including loadable boot-path support for third-party disks and graphics cards

• Provides virtually automatic management of peripheral SCSI storage devices, such as disks, tapes and CD-ROMs

Tru64 UNIX supports the Common Desktop Environment (CDE) as the default user interface. CDE provides a uniform graphical user interface, portable across multiple platforms, to facilitate common end-user and system administration tasks.

Tru64 UNIX provides real-time support and symmetric multiprocessing (SMP), dataless servers and clients, and numerous features to assist application programmers in developing applications that use shared libraries, threads, and memory-mapped files. It is fully compliant to the Single UNIX Specification, to the X/Open UNIX brand, to POSIX 1003.1b (real time) and to POSIX 1003.1c (with POSIX Threads -- formerly called DECthreads).

1.1.3    Standards

To ensure a high level of compatibility with the Compaq ULTRIX operating system, the Tru64 UNIX operating system is compatible with the Berkeley 4.3 and System V programming interfaces and, by complying with the System V Interface Definition (SVID3 Base and Kernel Extensions), Tru64 UNIX supports System V applications as well.

Part of the charter of The Open Group (formerly The Open Software Foundation) was to provide an interface for developing portable applications that would run on a variety of hardware platforms. Tru64 UNIX is compliant with the OSF Application Environment Specification (AES) that specifies the interface to support these portable applications. In addition, the Tru64 UNIX operating system complies with standards and industry specifications, including FIPS, POSIX, X/Open, XTI, and AT&T System V Interface Definition (SVID).

See the Software Product Description (SPD) for more information about the standards that Tru64 UNIX supports.

1.2    Product Features and Enhancements

Tru64 UNIX offers an array of significant features and enhancements to support Enterprise applications, high performance technical computing, business intelligence, and Internet communications. Most of these features are incorporated into the base operating system, while others are incorporated into the optional components and separately licensed products packaged on the Tru64 UNIX Associated Products CD-ROMs (see Section 1.5 for information about the Tru64 UNIX media kit).

Table 1-1 lists the features and their benefits.

Table 1-1:  Features and Benefits

1.2.1    Scalability Features

Tru64 UNIX includes the following scalability features:

• More CPUs

  Enhanced scaling allows for the addition of more CPUs in SMP systems. Additionally, several design improvements have been made to allow increased CPU scaling with future systems.

• Very large memory (VLM)

  Improved memory utilization to 28 GB, which provides more efficient use of memory in VLM configurations.

• File and storage limits

  Supports 4 terabytes or larger file and storage systems.

• Performance benchmarks

  Provides improvements in the following benchmarks: AIM VII, LADDIS, TPC-C, TPC-D, and SPECweb.

• Enhanced device support:

  • SCSI-3 standard support allows up to 256 target and LUN addresses per SCSI bus and supports dual pathing (alternate path to a device).

  • New device naming provides a flexible framework that allows more than 256 device names per SCSI bus. The new device naming supports SCSI-3 and Fibre Channel. It includes the ability to convert existing device names in an existing configuration to new device names automatically, while retaining support for old device names.

    The advantages for the new device naming include the ability to retain its name, even if it moves to a different SCSI address and support for multipathing to a disk where the disk is accessible through a different SCSI controller.

  • Support for Fibre Channel-switched connections and multiple concurrent paths (64) with adaptive load balancing has been added. Both SCSI-2 and SCSI-3 commands are supported.

• Dynamic Tuning

  Most tuning can be done at run time without rebooting the system.

1.2.2    Features of the Installation Process

You can install Tru64 UNIX in three ways, using various utilities to help make the process as simple as possible:

• Full Installation

  Installs a new operating system, in this case Version 5.0A. A Full Installation creates new file systems and swap space and overwrites existing system and user-created files on the disk partitions where the file systems and swap spaces are to be installed. After the installation, you configure the system for general use. (See Section 2.1.1.)

• An Update Installation

  Updates a system running Version 4.0F or Version 5.0 to Version 5.0A. This type of installation preserves disk partitions, file systems, file customizations, network and print environment, user accounts, user created files, and any other system setup you may have done on the system. (See Section 2.1.2.)

• Cloned Installation

  Lets you replicate the full installation from a model system that is already installed with Version 5.0A onto one or more systems with the same or similar hardware configuration. Installation cloning is ideal for environments in which there are many systems of the same type to be installed. Cloning produces identical system installations and eliminates the need to go through the Full Installation tasks at each system

The Tru64 UNIX Version 5.0 release brought many enhancements to the installation processes. Section 2.1 describes some of these enhancements. The following list describes some important changes to the installation processes since Version 5.0:

• Your system must have at least 64 MB of memory before you can install and run Version 5.0A.

• If you plan to install all file systems and swap space on a single disk, the disk must contain at least 1 GB of storage space.

• If you decide to install optional software either during a Full Installation or after the system is installed, the setld utility automatically checks software dependencies. Dependency checking ensures that software required for the proper operation of the optional software is installed. If such a relationship is detected, the dependent software is automatically installed and you are notified.

The following documentation can help you with your installations:

• Installation Guide

• Installation Guide -- Advanced Topics (first introduced with the Version 5.0 release)

• Update Installation Quick Reference Card

• Full Installation Quick Start (New with this release)

• For more information on RIS, see the guide Sharing Software on a Local Area Network. This manual will guide you when installing across a network from a Remote Installation Services (RIS) server.

For information on this documentation, see the Documentation Overview.

1.2.3    System and Network Management Utilities

Tru64 UNIX provides many applications to help you easily set up, configure, and tune your system, and to simplify your daily maintenance and adminstration tasks.

The following list highlights several system and network management utilities that were introduced or enhanced since Version 5.0. Chapter 2 provides more detailed information.

• SysMan Menu

  Provides a framework for organizing various system management tasks. Each task represents a small application that is launched from the SysMan Menu.

  SysMan Menu can be run in CDE, HTML, or ASCII text environments. Thus, all the tasks on this menu can be performed from an X11 capable display, a personal computer running Microsoft Windows products, Linux, or the Macintosh Operating System, or from a character cell terminal. The Linux and Macintosh capabilities are new with Version 5.0A. (See Section 2.4.1.)

• SysMan Station

  Provides a graphic representation of the Tru64 UNIX system and enables you to manage it remotely from a personal computer. This Java utility is fully integrated with TruCluster Server Version 5.0A; it allows for remote management from any computer. (See Section 2.4.2.)

• Quick Setup utility

  Provides a fast, user-friendly way to set up your system with the basic system configuration. The resulting system can be used "as is" or you can customize it with settings accessible in the full-featured configuration application. On a character cell system, the Quick Setup application is available from the System Setup menu (/usr/sbin/setup). (See Section 2.2.)

• Hardware Management utility (hwmgr)

  Helps you to manage hardware components, including disk and tape drivers, processors, and buses. (See Section 2.6.)

• Division of Privileges utility

  Enables administrators to grant users or groups access to execute these privileged programs without the root password. All privileged system management applications can be launched from the SysMan Menu, the SysMan Station, the desktop's Application Manager, or the Custom Setup checklist.

• Network Setup Wizard

  Guides you through adding a system to a network. The wizard steps you through the applications in a recommended order and provides information to help you determine which applications are applicable to each situation.

• Compaq Analyze

  Helps you analyze events stored in the system's event log file. This graphical interface is a rules-based, hardware fault-management diagnostic utility that enables you to set program and configuration parameters and to review event information. (See Section 2.5.2.)

• Event Manager (EVM)

  Provides a single point of focus for the multiple channels (such as log files) through which system components report event and status information. (See Section 2.5.8.)

• Compaq Insight Manager

  Provides a Web-based environment from which you can monitor supported systems using , Web-Based Enterprise Services (WEBES). Compaq Insight Manager provides a consistent wrapper for SysMan and other Tru64 UNIX utilities. (See Section 2.5.1.)

• ATM configuration utility

  Supports the configuration of classical IP over permanent virtual circuits (PVCs) and IP switching.

• Point-to-Point (PPP) configuration utility

  Allows you to easily create and delete PPP option files and to select options and their values. Using PPP Authentication File configuration you can add, delete, or modify an entry in the pap-secrets or chap-secrets authentication files. This application eliminates the need to manually create or modify these files.

• Network Time Protocol configuration utility

  Enables you to set up an NTP client or peer (a local NTP server that can synchronize the time with another server or be synchronized by it). It also enables you to check the status of the NTP daemon and to start, restart, and stop the daemon.

• Domain Name Service configuration utility

  Helps you configure domain names. In Version 5.0, this DNS utility replaced the bindsetup and bindconfig applications.

• Network File System configuration utility

  Provides you with a list of tasks relating to NFS setup and steps you through the list.

• Kernel Tuner

  Lets you display and change parameters of the kernel subsystem.

• Class Scheduler

  Provides a convenient way to prioritize tasks.

• Process Tuner

  Lets you display, monitor, and manage system processes. It provides sort and filter options to help manage the display of the information.

• DECevent

  Provides error reporting and binary-to-text translation capabilities. DECevent provides system-directed diagnostic capability for various platforms. (See Section 2.5.9.)

• Performance Manager

  Provides utilities for detecting and correcting real-time performance problems. (See Section 2.5.3.)

• Environmental Monitoring utility

  Monitors the thermal, fan, and redundant power supply state of AlphaServer systems with prerequisite hardware sensor support. (See Section 2.5.7.)

• sys_check command

  Outputs the system configuration, hardware and software, of the running system and displays the information in HTML format. The sys_check command also performs a basic analysis of operating system parameters and attributes and provides warnings if it detects problems.

• Tru64 UNIX provides graphical presentation of the following commands:

  • iostat (I/O statistics)

  • netstat (network statistics)

  • vmstat (virtual memory statistics)

  • who

• Bootable Tape

  Gives you the ability to create and recover a disk image from a system.

1.2.4    AdvFS Features

The following sections describe new features for the AdvFS file system, which is the Tru64 UNIX default file system.

1.2.4.1    Fileset Creation with var Area in /usr

Selecting /usr for the var area now creates both a usr fileset and a var fileset within the usr domain when AdvFS is selected for the usr file system. You can continue to create separate filesets, but take advantage of AdvFS's ability to share disk resources between filesets. Previously, this option created a single usr fileset within the usr domain that contained both usr and var information.

This change affects users who back up AdvFS filesets with the vdump command. Previously, if your system was configured with var in the usr fileset, you needed only to back up the usr fileset. Because you can create a separate fileset for the var area, you must issue an additional vdump command against the var fileset or the information in the var fileset will not be backed up.

1.2.4.2    On-Disk Format for AdvFS Domains

Beginning with the Version 5.0 release, Tru64 UNIX provides a dramatically improved AdvFS on-disk file system structure that increases performance on AdvFS file systems that have a large number of files. For information, see Section 4.3 and the AdvFS Administration guide.

See Section 1.4.3 for information about the separately licensed AdvFS Utilities product.

1.2.5    Networking Features

Tru64 UNIX provides the following network features, many of which were introduced in the Version 5.0 release and enhanced in Version 5.0A:

• Fast Ethernet support

  Support for IEEE 802.3 100Base-TX in full and half duplex.

• Gigabit Ethernet support

  Support for IEEE 802.3z Gigabit Ethernet Standard, IEEE 802.3x Pause Frame Flow control (X-on/X-off), both symmetric and asymmetric, and Jumbo frame compatible.

• NetRAIN

  Support provided for Ethernet, FDDI, and ATM controllers. NetRAIN allows for the failover of communications from one controller to another in the event a fault is detected in the communications path.

• ATM

  SysMan Menu helps you to configure applications so that you no longer need to configure Classical IP over PVCs and IP Switching through the /etc/atm.conf file. Note, however, that the atm.conf file is still supported for starting user-written or third-party ATM components that are not supported by the ATM configuration application. See the Software Product Description for more information. The atm.conf file is automatically invoked during system booting, immediately after the ATM configuration has been performed.

• RFC support

  For RFCs 1901-1908 (SNMPv2C) in the extensible SNMP agent, subagent developer's tools, and SNMP-related commands.

  For RFC 2089 (Mapping SNMPv2 to SNMPv1) in the bilingual extensible SNMP agent.

  For RFC 2257 (Agent Extensibility) in the extensible SNMP agent and subagent developer's tools.

• Point to Point Protocol (PPP)

  Was updated to Version 2.3.1 and a new application was added to help you configure PPP.

• Resource Reservation Protocol (RSVP) (RFC 2205)

  Was added for Ethernet and FDDI, which provides Quality of Service (QOS) for real-time traffic.

• Domain Name Service (DNS)

  Was upgraded from BIND Version 4.9.3 to Version 8.1.1, including dynamic updates to DNS.

• TCP/IP

  Enhanced to Include Path MTU over UDP and improved scaling for the rlogin and telnet commands.

• Network File System (NFS)

  Improved client performance with support for 64K I/O.

• Mail server

  Support for POP3 Version 2.5, IMAP4 Version 1.5.19, and Sendmail Version 8.9.3.

• Single-system support

  Supports multiple network adapters in the same subnet that are configured to provide failover in case of an adapter failure.

1.2.6    UNIX and Microsoft Windows Interoperability

Tru64 UNIX provides a number of capabilities and products to simplify the development, deployment and management of solutions in a mixed UNIX and Microsoft Windows environment. These capabilities help solve integration problems across a number of functional areas. See Chapter 7 for details.

Version 5.0A introduces the Windows 2000 Single Sign-On software, which gives Windows 2000 users the capability of logging into Tru64 UNIX system using their Windows 2000 user name and password. See Section 7.3 for more information about this optional component.

1.2.7    Advanced Printing Software

The Advanced Printing Software (APS), introduced in the Version 5.0 release, is a printing system for Tru64 UNIX developed in collaboration with Xerox, and based on the PrintXchange technology from Xerox. APS is a distributed client/server printing system for workgroup and enterprise environments. Based on the ISO 10175 Document Printing Application and POSIX 1384.7, APS uses inbound and outbound gateways to move print jobs to or from the lpr and lpd print subsystems.

1.2.8    Documentation

The Tru64 UNIX documentation gives you the information you need in the format that is most convenient for you. For complete information about the Tru64 UNIX documentation, including changes made in the Version 5.0A release, see the Documentation Overview. The following list describes some of the features of the Tru64 UNIX documentation:

• Most of the documentation is available in HTML format for viewing with a Web browser, in PDF format for viewing and printing with the Adobe Acrobat Reader, and in printed books.

  When viewing the books with a browser, references to other documentation -- including the reference pages -- are linked, so that a click of your mouse will take you there.

  With your browser's print option, you can easily print the sections you want, or you can cut and paste sections to create your own documentation to better help you perform specific tasks. With Acrobat Reader, you can print sections, chapters, or entire books with an almost type-set quality.

• The Documentation CD-ROM, which contains HTML and PDF versions of Tru64 UNIX books, white papers, and the complete set of operating system reference pages, can be used on a Tru64 UNIX system, as well as on a Windows PC or Macintosh -- laptop or workstation -- or on any other system that uses the ISO 9660 Level 1 CD-ROM standard. This CD also provides versions of Adobe Acrobat Reader for many operating systems.

  To help you locate specific information in the documentation, the Documentation CD-ROM contains a copy of the AltaVista Search CD-ROM software with a complete index of the HTML documents. The AltaVista software runs on an x86-based PC with Windows 95, Windows 98, or Windows NT Version 4.0 and higher.

• Printed versions of the Tru64 UNIX core documentation are available in the separately orderable Tru64 UNIX Documentation Kit and in individual subkits. See the Documentation Overview for a description of those kits.

  The books in the Startup Documentation Kit are included in the Tru64 UNIX media kit. See Section 1.5.1 for a list of those books.

• On the Web, you can find the current documentation set, as well as sets for Tru64 UNIX versions dating back to Version 3.0. Books for recent versions are available in HTML and PDF formats, while books for earlier versions are available only in PostScript format. To view this documentation, point your Web browser to the following URL:

  http://www.unix.digital.com/faqs/publications/pub_page/pubs_page.h tml

  The Web site also gives you access to the Tru64 UNIX reference pages, as well as to the following documentation:

  • Tru64 UNIX Best Practices documentation

  • Tru64 UNIX Device Driver documentation library

  • TruCluster Server (including the TruCluster reference pages)

  • Advanced Server for UNIX

  • Open Source Internet Solutions for Tru64 UNIX

• Best Practices documentation offers a recommended method for performing a task, rather than presenting all of the options available. This type of documentation walks you step-by-step through the process.

• The online help for SysMan and its associated applications is robust and task-oriented to help you find the information you need to complete a given goal. Online help has been developed to support new applications.

1.2.9    Year 2000 Readiness

The following testing process and methods were used to ensure that Tru64 UNIX is Year 2000 Ready:

• Code Inspection

  All source code modules used to build this product were inventoried and inspected to ensure correct date handling for date data beyond the year 2000.

• System Date Handling

  This product was tested to ensure that the system properly handles future time.

• Regression Testing

  This product was tested using a comprehensive suite of regression tests for functional, performance, and standards compliance with system time set to future dates including dates in and beyond the year 2000.

To ensure that this product interoperates properly with other hardware and software, the following testing processes and methods were used:

• Year 2000 readiness was tested using supported hardware and firmware.

• Year 2000 readiness was tested while operating within a computer network of other systems.

• The associated products shipped with the Tru64 UNIX media kit have been tested with the operating system for Year 2000 readiness.

1.3    Performance

Compaq has improved the performance of the operating system and many applications including the following:

• E-business

  Substantial improvements in the kernel and in the networking support enable faster and more reliable Internet.

• Kernel tuning

  The default values for the maxusers, vm-page-free-target, vm-mapentries, and vm-vpagemax kernel tuning attributes have been modified to improve performance on larger systems. The default values set for maxusers and vm-page-free-target depend on the amount of memory in the system.

• Pipes

  A file-based pipes implementation replaces the socket-based pipes implementation for improved performance.

1.4    Optional Components

You can purchase a wide variety of software products from Compaq and many other companies to run on the Tru64 UNIX operating system.

Most of the separately licensed products described in the following sections are included with the Tru64 UNIX media kit. See the Software Product Description for additional information on any or all of these optional software packages.

1.4.1    TruCluster Server

TruCluster Server Version 5.0A is a highly integrated synthesis of Tru64 UNIX software, AlphaServer systems, and storage devices that operate as a single system. A TruCluster Server cluster acts as a single virtual system, even though it is made up of multiple systems. Members of the cluster can share resources, data storage, and cluster-wide file systems under a single security and management domain, yet they can be booted or shut down independently without disrupting the cluster.

A TruCluster Server environment can be as simple or as feature rich as you want. You configure a cluster that fits your needs, from a two-node cluster up to an eight-node cluster running high availability applications, such as the following:

• Transaction processing systems

• Servers for network client/server applications

• Data-sharing applications that require maximum uptime

• Distributed parallel processing applications that take full advantage of the TruCluster Server application programming interfaces (APIs)

TruCluster Server includes a cluster alias for the Internet protocol suite (TCP/IP) so that a cluster appears as a single system to its network clients and peers.

If you know how to manage a Tru64 UNIX system, you already know how to manage a TruCluster Server cluster because TruCluster Server extends single-system management capabilities to clusters. The SysMan Menu utilities provide an integrated view of the cluster environment, letting you manage a single member or the entire cluster.

For more information, see the TruCluster Server Technical Overview.

1.4.2    Logical Storage Manager

The Logical Storage Manager (LSM) is an integrated, host-based solution to data storage management, providing concatenation, striping, mirroring, and a graphical user interface that allows data storage management to be done on line, without disrupting users or applications. (See Section 2.3 for more information.)

1.4.3    Advanced File System Utilities

The Advanced File System Utilities extend the high availability and flexibility of AdvFS. They provide a graphical user interface to help you do the following:

• Spend less time managing file systems

• Keep your data on line during routine maintenance

• Extend the capacity of your files

• Balance the percentage of space used on volumes

• Undelete files, stripe files, and clone files for hot backup

The graphical interface integrated with Performance Manager lets file system metrics pass from Advanced File System Utilities to Performance Manager.

1.4.4    Developer's Toolkit

The Developers' Toolkit is a prerequisite for all Compaq Tru64 UNIX development tools, languages, and environments. The Toolkit contains the following components:

• Compaq C for Tru64 UNIX, an ANSI conformant C compiler

• Debuggers (Ladebug, dbx)

• The ATOM API

• Program analysis tools (profiling and performance analysis)

• Visual Threads (thread-related profiling and debugging)

• Porting Assistant

See Chapter 6 for more information.

1.4.5    Advanced Server for UNIX

The Advanced Server for UNIX provides seamless interoperability between Tru64 UNIX servers, Windows NT servers, and Microsoft Windows clients. The Advanced Server enables a Tru64 UNIX system to run the services that make it appear as a Microsoft Advanced Server. See Section 7.2 for more information.

1.4.6    Multimedia Services

Multimedia Services software brings audio and video capabilities to Compaq Tru64 UNIX workstations, and provides a full multimedia programming library for developers. The Multimedia Services run-time license is included with the base operating system.

1.4.7    Other Software

The following software is not included with the Tru64 UNIX media kit, but can be separately purchased:

• Enterprise Toolkit for Visual Studio

  The Enterprise Toolkit is a set of extensions or add-ins to Microsoft Visual Studio that support developing C, C++, and Fortran applications for Tru64 UNIX servers. With Compaq Enterprise Toolkit for Visual Studio, developers can use the popular Microsoft Visual Studio tool to develop, edit, compile, build, and debug applications for Tru64 UNIX or Windows from a single desktop.

  You can create and manage basic UNIX applications or create more powerful and complex client/server and distributed applications, harnessing the power of 64-bit Tru64 UNIX Alpha technology with a single set of PC tools.

  Additionally, the Compaq Enterprise Toolkit provides developers a rich set of performance and memory analysis tools. The Enterprise Toolkit uses Visual Studio's documentation browser, the HTML Help Viewer, to provide access to UNIX and product documentation from the same window that developers view Windows documentation.

• Source Materials Options

  A source kit is available for users who need to retrieve and modify selected source modules, primarily for making highly specialized modifications.

1.5    Packaging

The Tru64 UNIX media kit contains four CD-ROMs labeled as follows:

• Tru64 UNIX Operating System

• Associated Products Volume 1

• Associated Products Volume 2

• Tru64 UNIX Documentation

Many of the associated products are optional subsets of the base operating system. Others (such as the Developer's Toolkit, TruCluster Server products, Logical Storage Manager, and Advanced Server for UNIX) are separately licensed products. See Section 1.4.7 for more information.

The media kit also contains printed copies of books in the Startup Documentation Kit, which will help you install and set up your Tru64 UNIX operating system.

If you purchase an Update Contract for the media, you receive the most current versions of the operating system, associated products, and documentation CD-ROMs, in addition to any of the printed manuals in the Startup Documentation Kit that have changed since the last release.

1.5.1    Documentation

The following printed documentation ships with the Tru64 UNIX media kit:

• Release Notes for Version 5.0A

• Installation Guide

• Installation Guide -- Advanced Topics

• Update Installation Quick Reference Card

• Full Installation Quick Start (new with Version 5.0A)

• Technical Overview

• TruCluster Server Technical Overview

• Quick Reference Card

• Documentation Overview

1.5.2    Licensing

Tru64 UNIX operating system software is furnished under the licensing of the Compaq Computer Corporation Standard Terms and Conditions.

In addition to the Operating System Base License, which is the prerequisite for all other licenses, there are five types of operating system licenses available on Alpha systems.

• Symmetric Multiprocessing (SMP) Extension to Base license

• Concurrent Use licenses

• Unlimited Interactive User licenses

• Hardware Partitioning license

• SingleServer license

For more information on these licenses, see the Software Product Description.

Tru64 UNIX provides the enabling technology to support static hardware partitions only on certain servers. These hardware partitions allow multiple instances of the operating system, which increases flexibility in testing new versions and running multiple versions for applications. Consult the Systems and Options Catalog at the following URL for detailed configuration guidelines:

http://www.digital.com/info/SOC

The use of Tru64 UNIX in hardware partitions requires a Tru64 UNIX Hardware Partitioning License for each additional partition. For more information, see the "Software Licensing" section in the Software Product Description.