Cisco SN 5420 Storage Router Software Configuration Guide, Release 2.1
About This Guide
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About This Guide

Table Of Contents

About This Guide




Command Syntax Conventions

Related Documentation

Obtaining Documentation

World Wide Web

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Technical Assistance Center

Cisco TAC Web Site

Cisco TAC Escalation Center

About This Guide

This preface describes the objectives, audience, organization and command syntax conventions of the Cisco SN 5420 Storage Router Software Configuration Guide. It also provides information on how to obtain related documentation and technical assistance.


This software configuration guide describes how to configure software in a Cisco SN 5420 Storage Router. It does not describe every possible configuration but does describe those tasks commonly required to configure the software.

Note This guide does not describe how to configure the iSCSI driver to be installed in each server requiring IP access to storage. Install and configure the Cisco Storage Networking iSCSI drivers according to the readme and example configuration files on the Cisco Storage Networking iSCSI Drivers CD shipped with your SN 5420 Storage Router. (In addition, you can access readme and example configuration files from


This guide is intended primarily for the following audiences:

System administrators who are familiar with the fundamentals of router-based internetworking and network storage devices, but who might not be familiar with the specifics of Cisco products or the routing protocols supported by Cisco products.

System administrators who are responsible for configuring network storage equipment.


This guide contains the following chapters (Table 1):

Table 1 Document Organization


Chapter 1

Before Configuring SN 5420 Storage Router Software

Describes what you should understand prior to configuring storage router software.

Chapter 2

First-Time Configuration

Describes what configuration information to gather and explains the initial system configuration script and setup configuration wizard. This chapter also introduces the CLI, web-based GUI, CiscoWorks, and CiscoView.

Chapter 3

Configuring System Parameters

Provides procedures for configuring system parameters.

Chapter 4

Configuring for VLAN

Provides procedures for configuring for VLAN.

Chapter 5

Configuring SCSI Routing

Provides procedures for configuring SCSI routing.

Chapter 6

Configuring Transparent SCSI Routing

Explains the configuration process for a transparent SCSI routing deployment and provides procedures to verify the configuration.

Chapter 7

Configuring iSCSI SAN Interconnect

Provides procedures for configuring iSCSI SAN interconnect.

Chapter 8

Configuring Authentication

Provides procedures for configuring AAA authentication and enabling iSCSI authentication.

Chapter 9

Configuring a Storage Router Cluster

Provides procedures for configuring a storage router cluster.

Chapter 10

Maintaining and Managing the Storage Router

Describes how to perform normal maintenance and management tasks associated with the storage router.

Chapter 11

Command Line Interface Reference

Provides information on the command line interface (CLI) and on all CLI commands.

Command Syntax Conventions

Table 2 describes the syntax used with the commands in this document.

Table 2 Syntax Conventions 


boldface font

Indicates commands and keywords that you enter literally as shown.

italic font

Indicates arguments for which you supply values.

[ x ]

Square brackets indicate an optional element (keyword or argument).

{ x }

Braces indicate a required element (keyword or argument).

{s | y | z}

Braces and vertical bars indicate a required choice of keywords or arguments, separated by the vertical bars within the braces.

[ x {y | z}]

Braces and vertical bars within square brackets indicate a required choice within an optional element.


The value entered for /bits specifies a network mask in classless interdomain routing (CIDR) style. That is, the value equals the number of bits in a network mask counting from the most significant side (left) of an IP address. For example, a /bits value of 24 is the equivalent of a network mask of Similarly, a /bits value of 32 specifies using the entire IP address.

"user text"

Indicates that user text (a user-defined text string) that contains a space or spaces must be enclosed using double or single quotes. If single quotes or an apostrophe is used as part of the text string, enclose the string using double quotes. If double quotes are used as part of the text string, enclose the string using single quotes.

For example, both "Pat's storage router" and `number "2"' are valid text string entries.

Note The question mark (?) character cannot be used as part of a text string.

screen font

Examples of information displayed on the screen.

boldface screen font

Examples of information you must enter.

< >

Nonprinting characters, for example, passwords appear in angle brackets.

[  ]

Default responses to system prompts appear in square brackets.

Note Means reader take note. Notes contain helpful suggestions or references to additional information and material.

Caution Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.

Timesaver Means the described action saves time. You can save time by performing the action described in the paragraph.

Related Documentation

Refer to the following documents for additional information:

Site Preparation and Safety Guide

Cisco SN 5420 Storage Router Hardware Installation Guide

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:

Translated documentation is available at the following URL:

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:

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

Nonregistered 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, 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

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
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San Jose, CA 95134-9883

We appreciate your comments.

Obtaining Technical Assistance

Cisco provides 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. registered users have complete access to the technical support resources on the Cisco TAC Web Site. 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. 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 to obtain customized information and service. To access, go to the following URL:

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:

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 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:

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

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:

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.