Cisco ACNS Software Maintenance and Troubleshooting Guide, Release 4.x
Preface

Table Of Contents

Preface

Document Objectives

Audience

Document Organization

Document Conventions

Obtaining Documentation

World Wide Web

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Cisco.com

Technical Assistance Center

Cisco TAC Web Site

Cisco TAC Escalation Center


Preface


This preface describes who should read the Cisco ACNS Software Maintenance and Troubleshooting Guide, how it is organized, and its document conventions.

This preface contains the following sections:

Document Objectives

Audience

Document Organization

Document Conventions

Obtaining Documentation

Obtaining Technical Assistance

Document Objectives

This guide explains how to maintain and troubleshoot your ACNS system software. It contains guidelines for allocating disk space and explains how to add and delete storage disks. This guide also explains how to upgrade and downgrade the software from one software release to another.

Audience

This guide is intended for network system administrators and media managers familiar with network caching and content delivery network concepts.

Administrators should be familiar with the following topics:

Hardware installation and configuration

Cisco router and switch configuration

Internet browsers

Media players

Administrators should also be experienced with the following topics:

PC operating systems and conventions

LAN environments

TCP/IP

Media formats

Document Organization

This guide is organized the following manner:

Chapter
Title
Description

Chapter 1

Introducing Cisco Application and Content Networking System Software

Provides a conceptual and functional overview of Cisco Application and Content Networking System (ACNS) software.

Chapter 2

Cisco ACNS Software Disk Space-Allocation Guidelines

Explains how to configure, modify, and maintain disk storage. This chapter also provides disk space-allocation guidelines.

Chapter 3

Software Upgrade and Downgrade Procedures

Explains how to upgrade from your current software release to ACNS software. This chapter also includes software downgrade procedures.

Chapter 4

Software Recovery Procedures

Explains how to recover a corrupted system image, how to recover a lost password, and how to recover from missing disk-based software.

Chapter 5

Troubleshooting with the Installation Wizard

Describes how to use the Installation Wizard to help bring devices back online or identify connectivity problems.


Document Conventions

Command descriptions use the following conventions:

boldface font

Commands and keywords in boldface.

italic font

Variables for which you supply values are in italics.

[   ]

Elements in square brackets are optional.

{x | y | z}

Alternative keywords are grouped in braces and separated by vertical bars.

[x | y | z]

Optional alternative keywords are grouped in brackets and separated by vertical bars.

string

A nonquoted set of characters. Do not use quotation marks around the string, or the string will include the quotation marks.


Screen examples use the following conventions:

screen font

Terminal sessions and information the system displays are in screen font.

boldface screen font

Information you must enter is in boldface screen font.

italic screen font

Variables for which you supply values are in italic screen font.

^

The symbol ^ represents the key labeled Control—for example, the key combination ^D in a screen display means hold down the Control key while you press the D key.

<   >

Nonprinting characters, such as passwords, are in angle brackets.

[   ]

Default responses to system prompts are in square brackets.

!, #

An exclamation point (!) or a pound sign (#) at the beginning of a line of code indicates a comment line.


Graphical user interface elements use the following conventions:

boldface font

Button names are in boldface font.


Notes and cautionary statements use these conventions:


Note Means reader take note. Notes contain helpful suggestions or references to materials not contained in this manual.



Caution Means reader be careful. You are capable of doing something that might result in equipment damage or loss of data.

Obtaining Documentation

The following sections explain how to obtain documentation from Cisco Systems.

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at the following URL:

http://www.cisco.com

Translated documentation is available at the following URL:

http://www.cisco.com/public/countries_languages.shtml

Documentation CD-ROM

Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which is shipped with your product. The Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or through an annual subscription.

Ordering Documentation

Cisco documentation is available in the following ways:

Registered Cisco Direct Customers can order Cisco product documentation from the Networking Products MarketPlace:

http://www.cisco.com/public/ordsum.html

Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription Store:

http://www.cisco.com/go/subscription

Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco corporate headquarters (California, USA) at 408 526-7208 or, elsewhere in North America, by calling 800 553-NETS (6387).

Documentation Feedback

If you are reading Cisco product documentation on Cisco.com, you can submit technical comments electronically. Click Leave Feedback at the bottom of the Cisco Documentation home page. After you complete the form, print it out and fax it to Cisco at 408 527-0730.

You can e-mail your comments to bug-doc@cisco.com.

To submit your comments by mail, use the response card behind the front cover of your document, or write to the following address:

Cisco Systems
Attn: Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883

We appreciate your comments.

Obtaining Technical Assistance

Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools by using the Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC Web Site.

Cisco.com

Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information, networking solutions, services, programs, and resources at any time, from anywhere in the world.

Cisco.com is a highly integrated Internet application and a powerful, easy-to-use tool that provides a broad range of features and services to help you to

Streamline business processes and improve productivity

Resolve technical issues with online support

Download and test software packages

Order Cisco learning materials and merchandise

Register for online skill assessment, training, and certification programs

You can self-register on Cisco.com to obtain customized information and service. To access Cisco.com, go to the following URL:

http://www.cisco.com

Technical Assistance Center

The Cisco TAC is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two types of support are available through the Cisco TAC: the Cisco TAC Web Site and the Cisco TAC Escalation Center.

Inquiries to Cisco TAC are categorized according to the urgency of the issue:

Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities, product installation, or basic product configuration.

Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.

Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects of business operations. No workaround is available.

Priority level 1 (P1)—Your production network is down, and a critical impact to business operations will occur if service is not restored quickly. No workaround is available.

Which Cisco TAC resource you choose is based on the priority of the problem and the conditions of service contracts, when applicable.

Cisco TAC Web Site

The Cisco TAC Web Site allows you to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC Web Site, go to the following URL:

http://www.cisco.com/tac

All customers, partners, and resellers who have a valid Cisco services contract have complete access to the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to the following URL to register:

http://www.cisco.com/register/

If you cannot resolve your technical issues by using the Cisco TAC Web Site, and you are a Cisco.com registered user, you can open a case online by using the TAC Case Open tool at the following URL:

http://www.cisco.com/tac/caseopen

If you have Internet access, it is recommended that you open P3 and P4 cases through the Cisco TAC Web Site.

Cisco TAC Escalation Center

The Cisco TAC Escalation Center addresses issues that are classified as priority level 1 or priority level 2; these classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer will automatically open a case.

To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to the following URL:

http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled; for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). In addition, please have available your service agreement number and your product serial number.