Quantum SNC 4500, SNC 4501, SNC 450x User Manual

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®

SNC

450x User’s Guide

ADVANCED DIGITAL INFORMATION CORPORATION

www.adic.co

Copyright © 2003-2004 ADIC

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Published: December 2004 Document Number: 6-00998-04 Rev A

Contents

1 Introduction 1

Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Associated Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Explanation of Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Environmental Notices and Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Product Recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Electrostatic Discharge (ESD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Getting More Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

ADIC Technical Assistance Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2 SNC Description 3

SCSI Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Ethernet Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Operating Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

SNC 4500 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

SNC 4501 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Operating Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3 Getting Started 7

Before Installing the SNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Installing the SNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Installing the SNC 4500 on a Desktop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Installing the SNC 4500 in a Rack. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Installing the SNC 4501. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Connecting the SCSI Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Cabling the SNC 4501 to the Scalar 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Cabling the SNC 4500 to the Scalar 100: Four or Six LTO-1 or SDLT Drives . . . . . . . . . . . . . . . . 12

Cabling the SNC 4500 to the Scalar 100: Four or Six LTO-2 Drives. . . . . . . . . . . . . . . . . . . . . . . . 15

Connecting to the Serial Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Connecting to the Ethernet Management Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Completing the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

SNC 450x User’s Guide iii

4 Configuring the SNC 25

Opening an SNC Manager Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Changing the Default Username and Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Setting the Date and Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Naming the SNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Connecting to the Ethernet Data Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Mapping Devices Automatically. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Mapping Devices Manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Other Ways of Connecting to and Monitoring the SNC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Using Telnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5 Updating Firmware 33

Updating Firmware Using FTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Updating Firmware Using ZModem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6 Using the SNC Manager Interface 35

Navigating SNC Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Checking Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Configuring the Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Configuring the Time and Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Configuring the Ethernet Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Configuring the SCSI Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Configuring iSCSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Configuring the SNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Configuring Advanced Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Restarting the Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Getting Help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7 Troubleshooting 41

Check the Host Event Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Check the SNC Event and Trace Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Visually Inspect LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Check for Problems on Attached Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Check Host Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Check SNC Product Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Component Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Checking SCSI Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Checking the SNC SCSI Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Checking the Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Checking the SNC Internal Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Checking SNC Ethernet Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Checking the LAN/WAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Checking the iSCSI Host Adapter or NIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Checking the iSCSI OS Driver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

iv Contents

Checking the Operating System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Checking the Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Performance Issues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Checking SCSI Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Checking the SNC SCSI Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Checking the SNC Ethernet Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Checking the LAN/WAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Checking the Ethernet Host Adapter or NIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Checking the Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Checking the Host System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Checking the Operating System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Using Jumbo Frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Updating Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8 Management Port Command Reference 51

Using the Command Line Interface (CLI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Alphabetical Listing of Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

9 Removal and Replacement Procedures 103

Handling ESD-Sensitive Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Removing the SNC 4500. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Replacing the SNC 4500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Before Removing and Replacing the SNC 4501 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Removing the SNC from the Scalar 24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Replacing the SNC from the Scalar 24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

10 iSCSI Performance Tuning 107

Network Speed and Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

GbE HBAs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

GbE Network Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

GbE Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Host Ethernet Software Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

TCP/IP Window and Buffer Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

A Regulatory Notices 111

FCC Standards: Radio and Television Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Class A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Canadian Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

European Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

VCCI Notices (Japan Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

BSMI Notice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

SNC 450x User’s Guide v

vi Contents

Introduction

This manual provides information and instructions that support the installation and operation of two ADIC
Storage Networking Controllers, the SNC
mounted SCSI over IP (iSCSI) connectivity unit used with the Scalar 100. The SNC 4501 is an iSCSI unit
mounted internally in the Scalar 24. Both units support Gigabyte Ethernet speeds. This document uses
SNC 450x to refer collectively to the SNC 4500 and the SNC 4501.

®

4500 and the SNC® 4501. The SNC 4500 is an external, rack-

Intended Audience

This guide is intended for operators, administrators, and maintenance personnel who interact with the
SNC 4500 and SNC 4501 hardware.

Associated Documents

The following documents are associated with this guide:

• Scalar 24 Installation and Operation Guide (62-2301-xx)

• Scalar 100 User’s Guide (6-00667-xx)

Explanation of Symbols

These symbols appear throughout this document to highlight important information:

Note

CAUTION

WARNING

SNC 450x User’s Guide 1

Indicates important information that helps you make better use of your system.

Indicates a situation that may cause possible damage to equipment, loss of
data, or interference with other equipment.

INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT
AVOIDED, COULD RESULT IN DEATH OR BODILY INJURY.

Environmental Notices and Statements

Environmental notices and statements that relate to the SNC 450x include the following:

Product Recycling

This unit contains recyclable materials that must be recycled according to local regulations wherever
processing sites are available.

Electrostatic Discharge (ESD)

ESD is a sudden flow of electric current through a material that is normally an insulator.

CAUTION

Never open the cover of the SNC as this exposes ESD-sensitive parts
and voids the warranty.

Getting More Information

If you want more information about your product, visit the ADIC website or contact the ADIC Technical
Assistance Center (ATAC).

ADIC Technical Assistance Center

If problems cannot be solved with the aid of this document or if training is desired, contact the ADIC
Technical Assistance Center (ATAC).

In the USA: 800-827-3822

In Europe and Japan: 00-800-9999-3822

For other contact numbers: www.adic.com/contact

To open a Service Request online: www.adic.com/techsup

2 Introduction

SNC Description

The SNC 4500 and SNC 4501 are Gigabit Ethernet (GbE) to SCSI Storage Networking Controllers that
enable iSCSI protocol support for your Scalar 100 and Scalar 24. Visit www.adic.com
types currently supported by the SNC 4500 and SNC 4501.

The SNC 450x
port, a serial management port, and two SCSI ports. The SNC 4500 has a 100-240V 50-60Hz auto sensing
power supply. A US and European power cable are provided. The SNC 4501 receives power directly from
the Scalar 24.

The SNC 4500 is installed externally to the Scalar 100 in standard 19" racks or free standing near the library.
The SNC 4501 is integrated into the Scalar 24.

1

includes two Ethernet data ports, an Ethernet management port that may be used as a data

SCSI Ports

The two SCSI ports use independent buses and connect storage devices into the iSCSI SAN. The ports are
Ultra 3 LVD/SE SCSI buses with a “P” interface and VHDCI connector. These ports are terminated
internally. They provide 160 MB/sec maximum throughput, and are downwardly compatible with all forms
of single-ended SCSI. For the position of the SCSI ports on the SNC 4500, see Figure 1
of these ports on an SNC 4501, see Figure 2

.

to see a list of drive

. For the position

1. This document uses the term SNC 450x to refer collectively to the SNC 4500 and the SNC

4501.

SNC 450x User’s Guide 3

Figure 1 SCSI Ports and Ethernet Ports on the SNC 4500

Figure 2 SCSI Ports and Ethernet Ports on the SNC 4501

Ethernet Ports

CAUTION

The two independent 10/100/1000 Ethernet RJ45 data ports support TCP/IP-based data transfer. These
two ports are also referred to as “dp0” and “dp1.” They are labeled Ethernet ports 0 and 1 on the SNC 4500
in Figure 1

A separate 10/100/1000 Ethernet standard RJ45 management port provides monitoring and management
through the SNC Manager, the management GUI. This port is labeled Ethernet port 2 on the SNC 4500 in

Figure 1

In the command line interface, data ports are referred to as “dp0” and “dp1” and the management port is
referred to as the “mp0.”

4 SNC Description

and on the SNC 4501 in Figure 2.

and on the SNC 4501 in Figure 2. It may also be used as a data port.

For best performance, all cabling, network interface cards (NICs),
host bus adapters (HBAs), and network switches must be Gigabit
Ethernet (GbE), and at least Cat 5e certified. Most standard offices
use 2-pair wiring which is not compatible. GbE requires 4-pair wiring.
For best performance, support for 9014 byte jumbo frames should be
available for all switches and host iSCSI equipment.

Serial Port

The RS-232 serial port is an RJ-11 connection used to connect this port to the serial port on a service
computer. The position of the RS-232 serial port on an SNC 4500 can be seen in Figure 8
position of the RS-232 serial port on an SNC 4501 is shown in Figure 9

on page 19.

on page 19. The

Note

The serial port provides support for remote monitoring and management when you use a terminal session
to access the command line interface (CLI).

The serial port is configured at:

• Baud rate: 115,200 bits per second

• Data Bits: 8

• Parity: None

• Stop Bits: 1

• Flow Control: None

• Terminal type: ASCII

• Echo: off

To configure the management port IP address, you must use either the serial
port or the library operator panel.

Operating Specifications

This section contains the physical, electrical, and environmental specifications for the SNC 4500 and SNC

4501.

SNC 4500 Dimensions

• Depth: 33.02 cm (13 in.)

• Height: 4.37 cm (1.72 in.)

• Width: 48.26 cm (19 in.)

• Weight: 4.53 kg (10 lbs.)

SNC 4501 Dimensions

• Depth: 17.78 cm (7 in.)

• Height: 7.62 cm (3 in.)

• Width: 15.24 cm (6 in.)

• Weight: 1.13 kg (2.5 lbs)

Operating Environment

The operating environment is as follows:

• Operating temperature: 10° to 40°C (50° to 104°F) external

• Blower and airflow: Be sure there is sufficient airflow to the rack or library.

SNC 450x User’s Guide 5

For the SNC 4500, air enters through the slots in the rear panel and exits through the blower on the
far end of the rear panel.

• Humidity: 10 to 90% non-condensing

Power

The SNC 4501 is powered by the Scalar 24.

The power for the SNC 4500 is as follows:

• Input voltage: 120–240 VAC, 50–60 Hz, fused on the power supply.

• Power draw: 15 Watts

• Battery-backed event log SRAM: Typically the rechargeable Lithium ion battery cell holds memory
for more than 30 days during power off. Recharging begins automatically when power is restored
to the system. The battery is shipped fully charged from the factory. The SNC should be left on to
keep the battery charged. If the SNC is left unpowered for long periods of time, you may need to
reset the time and date. For instructions, refer to Setting the Date and Time

on page 26.

6 SNC Description

Getting Started

This chapter describes how to install the SNC 450x and how to configure the serial port and the Ethernet
management port. It also contains information about SCSI device cabling and Ethernet data port cabling.

Before Installing the SNC

Before you begin installing the SNC 450x, be sure to check or complete the following:

• If you are managing your iSCSI system across a WAN and your system uses a firewall, be sure that
the following ports are open and available:

If you are using the TCP protocol

• telnet (port 23)

• http (port 80)

• ftp (ports 20 and 21)

• iscsi (port 3260)

• iSNS (port 3705)

If you are using the UDP protocol

• ntp (port 123)

• SNMP (port 161)

• Be sure your host system is set up and configured.

• Your host system can use any of three different types of cards: a network interface card (NIC),

a TCP/IP offload engine card (TOE), or a storage network interface card (SNIC).

• Obtain the SNC driver file, "SNC Null Driver for Windows 200X", from www.adic.com. Unpack

the ZIP file to a temporary directory on your host. Follow the directions to install the driver in the
Readme.txt file or, after you have installed the SNC and the host posts a message saying it
has located an unknown system device, point the host at the SNC device driver.

It is recommended that you configure host access through a switch.

CAUTION

For more information about preparing your system, refer to iSCSI Performance Tuning

SNC 450x User’s Guide 7

on page 107.

Installing the SNC

The SNC 4500 is installed on a desktop or in a rack near the Scalar 100. The SNC 4501 is installed directly
into the rear of the Scalar 24.

Installing the SNC 4500 on a Desktop

1 Place the SNC 4500 on a desktop near the Scalar 100.

2 Connect the SNC AC power cord from the SNC to a proper AC source outlet.

Note

3 Proceed to the section Connecting the SCSI Ports

The SNC should be left on to keep the battery charged. If the SNC is left
unpowered for long periods of time, you may need to reset the time and date.
For instructions, refer to Setting the Date and Time

on page 11.

on page 26.

Installing the SNC 4500 in a Rack

1 Using the screws provided, screw the bracket’s flat side to one side of the SNC, matching the holes in

the bracket with the holes in the SNC as shown below.

2 Repeat on the other side.

8 Getting Started

3 Fasten the SNC with the brackets to one side of the rack’s rail pairs using 10/32 pan head screws with

lock and flat washers (not provided).

4 Repeat on the other side.

5 Connect the SNC AC power cord from the SNC to the proper AC source outlet.

Note

6 Proceed to the section Connecting the SCSI Ports

The SNC should be left on to keep the battery charged. If the SNC is left
unpowered for long periods of time, you may need to reset the time and date.
For instructions, refer to Setting the Date and Time

on page 11.

on page 26.

Installing the SNC 4501

1 If the Scalar 24 is on, turn the power off.

2 Locate the SNC slot on the rear of the Scalar 24.

SNC 450x User’s Guide 9

3 Loosen the four thumbscrews on the cover plate and remove the cover plate.

Note

Store the cover plate in a convenient place. You must replace it later for proper
operation and cooling of the library if the SNC is removed.

10 Getting Started

4 Orient the SNC so that the SCSI ports are on the bottom and the handle is on the left.

5 Slide the SNC into the bay until it matches with the connector and power receptacle. Then tighten the

thumbscrews.

6 Ensure that the AC power cord is plugged into the proper AC source outlet.

Note

The SNC should be left on to keep the battery charged. If the SNC is left
unpowered for long periods of time, you may need to reset the time and date.
For instructions, refer to Setting the Date and Time

on page 26.

Connecting the SCSI Ports

SNC SCSI ports are used to connect SCSI storage devices (drives) and media changers. Each SCSI port
is independent from the other SCSI port.

Because each bus is independent, each bus is capable of supporting 15 devices and transfer rates of 40,
80, or 160 MB/sec. (Ultra, Ultra2, or Ultra3). When using a SNC 4500 or SNC 4501, one tape drive per SCSI
bus is recommended for the Scalar 24 and two tape drives per bus is recommended for the Scalar 100.

Each SCSI bus auto-negotiates the appropriate sync rates with connected drives. If slower single-ended
(SE) drives are mixed with faster low voltage differential (LVD) drives, the bus communicates at the rate of
the slowest drive, thus wasting the performance capabilities of the faster drives. Connect slower SE drives
to one SCSI port and connect faster LVD drives to the other port.

Cables and drives must be chosen to maximize performance and minimize the electrical noise from the
high-speed data transfers available with the SCSI protocol. Cabling and termination methods become
important considerations for proper performance. SCSI cables and drives are subject to specific length and
number limitations to deal with electrical problems that arise at increased operating speeds.

SNC 450x User’s Guide 11

Use high-quality cables rated for the type of SCSI transfers required. Well-insulated SCSI cables
significantly reduce the occurrence of errors in communications. Try to keep cable lengths as short as
possible to ensure higher signal quality and performance.

Cabling the SNC 4501 to the Scalar 24

1 Turn off the library and SNC, if they are on.

CAUTION

2 Check the type of cable, cable length limit and number of devices recommended for each port. For

general guidelines, refer to Connecting the SCSI Ports

3 Connect sb0 on the SNC to drive 1.

4 Terminate drive 1.

See Figure 3
drives, proceed to Step 5

5 Connect sb1 on the SNC to drive 2.

6 Terminate drive 2.

See Figure 3

Figure 3 Scalar 24 with Two LTO-1/LTO-2 or SDLT Drives

. Stop here if you have only one LTO-1 or SDLT drive. If you have two LTO-1 or SDLT

.

Use a maximum cable length of 6m (20 ft) for LVD devices.

.

.

Cabling the SNC 4500 to the Scalar 100: Four or Six LTO-1 or
SDLT Drives

1 Turn off the library and SNC, if they are on.

Use a maximum cable length of 6m (20 ft) for LVD devices.

CAUTION

2 Check the type of cable, cable length limit and number of devices recommended for each port. For

general guidelines, refer to Connecting the SCSI Ports

3 Connect sb0 on SNC 1 to the library controller.

4 Connect the library controller to drive 3.

12 Getting Started

.

5 Use a jumper cable to connect drive 3 to drive 4.

6 Terminate drive 4.

7 Connect sb1 on SNC 1 to drive 1.

8 Use a jumper cable to connect drive 1 to drive 2.

9 Terminate drive 2.

See Figure 4

on page 14. Stop here if you have only four LTO-1 or SDLT drives. If you have six LTO-1

or SDLT drives, proceed to Step 12

10 Connect sb0 on SNC 2 to drive 5.

11 Terminate drive 5.

12 Connect sb1 on SNC 2 to drive 6.

13 Terminate drive 6.

See Figure 5

on page 15.

. See Figure 5 on page 15.

SNC 450x User’s Guide 13

Figure 4 Scalar 100 with Four LTO-1 or SDLT Drives

14 Getting Started

Figure 5 Scalar 100 with Six LTO-1 or SDLT Drives

Cabling the SNC 4500 to the Scalar 100: Four or Six LTO-2 Drives

1 Turn off the library and SNC, if they are on.

Use a maximum cable length of 6m (20 ft) for LVD devices.

CAUTION

2 Check the type of cable, cable length limit and number of devices recommended for each port. For

general guidelines, refer to Connecting the SCSI Ports

SNC 450x User’s Guide 15

.

3 Connect sb0 on SNC 1 to the library controller.

4 Connect the library controller to drive 1.

5 Terminate drive 1.

6 Connect sb1 on SNC 1 to drive 2.

7 Terminate drive 2.

8 Connect sb0 on SNC 2 to drive 3.

9 Terminate drive 3.

10 Connect sb1 on SNC 2 to drive 4.

11 Terminate drive 4.

See Figure 6
proceed to Step 12

on page 17. Stop here if you have only four LTO-2 drives. If you have six LTO-2 drives,

. See Figure 7 on page 18.

12 Connect sb0 on SNC 3 to drive 5.

13 Terminate drive 5.

14 Connect sb1 on SNC 3 to drive 6.

15 Terminate drive 6.

See Figure 7

on page 18.

16 Getting Started

Figure 6 Scalar 100 with Four LTO-2 Drives

SNC 450x User’s Guide 17

Figure 7 Scalar 100 with Six LTO-2 Drives

Connecting to the Serial Port

Use the serial port to log on and configure the Ethernet ports.

Note

18 Getting Started

You must have completed the previous installation steps before you configure
the serial port.

1 Connect the cable supplied with your SNC to the SNC RS-232 serial port, and from there to the serial

(COM) port on a personal computer.

For the location of this port on the SNC 4500, see Figure 8

9.

Figure 8 Serial Connector on the SNC 4500

Figure 9 Serial Connector on the SNC 4501

. For its location on the SNC 4501, see Figure

2 If you are using an SNC 4500 with a Scalar 100 and the library is off, turn on the library. After about 15

seconds, when the library has finished booting, turn on the SNC. If you are using the SNC 4501, just
turn on the library.

3 Start a terminal emulation program on the personal computer, and use it to connect to the SNC.

a. For example, if you are using HyperTerminal on a computer running a Windows operating

system, type SNC450x in the New Connection dialog box. Then click OK.

b. In the Connect To dialog box, for the Connect using field select the COM port number to

which your serial cable is connected. Then click OK.

In the COM Properties dialog box select the following values:

• Bits per second: 115,200

• Data Bits: 8

• Parity: None

• Stop Bits: 1

• Flow Control: None

SNC 450x User’s Guide 19

• Terminal type: ASCII

•Echo: on

c. Click OK.

4 After you connect to the SNC, you can see the following start-up messages. These messages are only

displayed at start-up. Messages actually displayed by your SNC will differ slightly from the sample
message printed below. The last line in the start-up message sequence is Ready.

Uart is Initialized

DRAM Data Line Test Passed
SRAM Data Line Test Passed
BBRAM Data Line Test Passed

DRAM Address Line Test Passed
SRAM Address Line Test Passed
BBRAM Address Line Test Passed

DRAM Pattern Test 1 Passed
DRAM Pattern Test 2 Passed
DRAM Pattern Test 3 Passed
DRAM Pattern Test 4 Passed
SRAM Pattern Test 1 Passed
SRAM Pattern Test 2 Passed
SRAM Pattern Test 3 Passed
SRAM Pattern Test 4 Passed
BBRAM Pattern Test 1 Passed
BBRAM Pattern Test 2 Passed
BBRAM Pattern Test 3 Passed
BBRAM Pattern Test 4 Passed
DRAM Swap Pattern Test1 Passed
DRAM Swap Pattern Test2 Passed
DRAM Swap Pattern Test3 Passed
DRAM Swap Pattern Test4 Passed

***** Memory Tests Complete *****

Memory Clear Finished

EPLD Version 0 Detected
DS1629_DVC_TYPE initialized

ADIC SNC 450x
(c) 2003 ATTO Technology, Incorporated.

Firmware version A61Z release date Feb 4 2004, 14:06:50 Build A61Z

Power-On Self-Test Completion Status: GOOD
128 Megabytes of RAM Installed.

2 GbE Data Port(s).
2 LVD SCSI Interface Port(s).

Bridge World Wide Name = 20 00 00 10 86 50 00 1C

20 Getting Started

Bridge Serial Number = “IPB2500100136”
Bridge Name = “SNC 450x”

Internal Temperature = 25 C [0 - 70]
For help, type HELP.
Active Configuration = ADIC Config File
Feb 4 2004 14:06:50 A61Z Initialization Complete
Scsi interface 0 Register R/W test Passed
Scsi interface 0 Reset test Passed
Scsi interface 0 FIFO test Passed
Scsi interface 0 Master test Passed
Scsi interface 1 Register R/W test Passed
Scsi interface 1 Reset test Passed
Scsi interface 1 FIFO test Passed
Scsi interface 1 Master test Passed

Initializing Port DP0......................

Initializing Port DP1......................

Initializing Port MP0......................

GBE hardware Init done.
Ready.

Note

5 To verify that you have connected successfully, type help after the Ready prompt and press Enter.

If a list of all available commands does not appear on the screen, review the steps in this section, check
the cable, or contact service personnel until the problem is solved.

• If you wish to change the default username and password for world wide web, Telnet and FTP use,
continue with the section Completing the Installation

• If you are configuring the SNC for the first time, continue with the section Connecting to the Ethernet

Management Port.

• If you were sent to this section by another procedure, return to that procedure.

• In serial port sessions, there is no prompt on the line below the word Ready.
Begin typing commands in the blank line where the cursor is resting.

• No username or password is required for serial port access.

• CLI commands are case insensitive. You can type all upper or all lower case
or a mixture. Upper and lower case in this guide and the Help screen are for
clarification only.

.

Connecting to the Ethernet Management Port

The management port IP address (Ethernet port 2, also called the mp0) must be set by issuing a command
from the serial port (refer to Connecting to the Serial Port

on page 18).

CAUTION

1 Using at least Cat 5e cable, connect the Ethernet ports to your network switch.

SNC 450x User’s Guide 21

• For best performance, all cabling, network interface cards (NICs),
host bus adapters (HBAs), and network switches must be Gigabit
Ethernet (GbE), and at least Cat 5e certified. Most standard offices
use 2-pair wiring which is not compatible. GbE requires 4-pair
wiring. For best performance, support for 9600 byte jumbo frames
should be available for all switches and host iSCSI equipment.

• It is recommended that you configure host access through a switch.

Figure 1 on page 4 and Figure 2 on page 4 show the connectors on the SNC.

CAUTION

your network administrator.

• The recommended configuration is one where DHCP has been
disabled.

• You must substitute a valid IP address for the IP address used in the
example.

• Some completed configuration commands do not take effect until
you have issued the saveConfiguration command. When this is the
case, the Ready prompt will be followed by an asterisk. You can
issue the saveConfiguration command after each such
configuration command or wait until the end of the configuration
session before saving.

2 Work from the computer attached to the SNC serial port. After the SNC Ready prompt is returned,

change the IP address of the management port by issuing the set IPAddress mp0 command. The
default IP address for the management port is “10.0.0.3.” The example below uses a hypothetical IP
address from the user’s internal network.

Ready.
set IPAddress mp0 172.17.76.3

Press Enter.

Ready.*

• Obtain appropriate IP addresses, gateways and subnet masks from

CAUTION

the example.

3 After the SNC Ready prompt is returned, issue the set IPSubnetMask mp0 command. The default

subnet mask is “255.255.0.0.”

Ready.
set IPSubnetMask mp0 255.255.255.0

Press Enter.

Ready.*

You must substitute a valid gateway for the gateway used in the

You must substitute a valid subnet mask for the subnet mask used in

CAUTION

example.

4 After the SNC Ready prompt is returned, issue the set IPGateway mp0 command. There is no default

gateway.

Ready.
set IPGateway mp0 172.17.76.0

Press Enter.

Ready.*

22 Getting Started

Completing the Installation

To complete the installation, continue with the configuration steps. Refer to Configuring the SNC on page

25.

Note

• You must have completed the previous procedures in this chapter before you
complete the installation.

• Other special configurations may be required, for example when setting up an
iSNSServer or iSCSIChapSecrets. If so, consult your service representative.

SNC 450x User’s Guide 23

24 Getting Started

Configuring the SNC

In the previous chapter you used the serial port to log on and configure the Ethernet ports. In this chapter
you get instructions for using SNC Manager to set the time and date and to map devices.

Note

• Any changes must be saved by clicking the Submit button and restarting the SNC.

• Clicking the Submit button is the equivalent of entering saveConfiguration norestart
at the command line.

• Multiple changes on multiple SNC Manager pages may be made and saved by clicking
the Submit button before restarting the SNC to permanently save the changes.

Opening an SNC Manager Session

SNC Manager is the recommended management tool for the SNC 4500 and SNC 4501. It is a web-based
graphical user interface (GUI) that allows you to manage the SNC by clicking choices and commands in
traditional GUI fashion or by entering CLI commands directly, as you would in a terminal emulation session.

The minimum requirement for browsers is Internet Explorer 5.5 or Netscape Navigator 6.2.

1 Obtain the IP address of the SNC mp0.

This address was set in Step 2
on page 21.

2 Point your browser at the IP address of the SNC.

3 The SNC Manager home page is displayed. Click Enter.

4 Enter the username and password values.

on page 22 in the section Connecting to the Ethernet Management Port

Note

The SNC Status page appears.

SNC 450x User’s Guide 25

The default value for the username is admin. The default password is
Password. These values are case sensitive.

Changing the Default Username and Password

CAUTION

1 If you have not already, open an SNC Manager session.

For instructions, refer to Opening an SNC Manager Session

2 Click Bridge.

The Bridge Configuration page is displayed. The username that you are currently logged in with is
displayed in the Username text box.

3 Enter appropriate information into the Username, Old Password, New Password, and Confirm

Password text boxes.

Note

4 Click Submit.

5 Provide the current administrative username and password when prompted to do so.

The username and password for all Telnet, FTP and SNC Manager sessions is changed.

It is best practice to change the default username and password after
you have configured your SNC. If you do so, record the new
username and password in a convenient place.

on page 25.

The username and password are case sensitive

Setting the Date and Time

Your SNC can set the time automatically by using the Network Time Protocol (NTP). NTP is enabled by
default. If the SNC is left unpowered for long periods of time, you may need to reset the time and date.

CAUTION

1 If you have not already, open an SNC Manager session.

For instructions, refer to Opening an SNC Manager Session

2 Click Time & Date.

3 If you are setting the time manually, proceed to Step 4

to set the time, click Simple Network Time Protocol enabled.

a. Type the IP address of the time server in the Time Server text box.

b. Click Submit. Exit this procedure.

4 Click Simple Network Time Protocol disabled.

5 Click Submit.

6 Select a time zone from the Time Zone drop-down choices.

7 In the box marked HH:MM:SS enter the desired time in hours, minutes, and seconds.

8 In the box marked MM:DD:YYYY enter the desired month, day, and year in digits.

9 Click Submit.

The SNC must remain powered on for more than 24 hours to ensure
the date and time are set.

on page 25.

. If you are using a time server on your network

26 Configuring the SNC

Naming the SNC

1 If you have not already, open an SNC Manager session.

For instructions, refer to Opening an SNC Manager Session

2 Choose a name for the SNC. Go to the Bridge Configuration page and type in a name in the text box

provided to identify your SNC.

The name can have no more than eight characters.

Note

3 Click Submit.

This name is an internal name only, not a network name. To set a network
name, ask your system administrator to assign one through DNS.

on page 25.

Connecting to the Ethernet Data Ports

After you have used the serial port to set an IP address for Ethernet port 2 (the management port), you can
use SNC Manager to configure the Ethernet data ports 0 and 1.

CAUTION

1 If you have not already, open an SNC Manager session.

For instructions, refer to Opening an SNC Manager Session

Obtain appropriate IP addresses, gateways and subnet masks from your
network administrator.

on page 25.

2 Click Ethernet.

The Ethernet Port Configuration page appears.

Note

Management port data will already be filled in when you bring up this screen.

SNC 450x User’s Guide 27

3 Fill in appropriate values for the data ports IP addresses, gateways, and subnet masks.

CAUTION

speed values or the MTU (Maximum Transmission Unit) values.

4 Click Submit.

5 Click the Restart button in the side bar. Then click Restart.

If the host and SNC are on different subnets, ping may return

Consult your service representative before changing the Ethernet

CAUTION

"Destination Net Unreachable." Check with your network
administrator to determine if pings across subnets have been
disabled for security reasons. If so, you will need to perform the ping
from a host on the same subnet as the SNC or rely on the host's iSCSI
initiator to enumerate the SNC data ports.

6 Wait for the reboot to be completed. Then, verify that the SNC can be accessed on the local Ethernet

network by issuing the ping command from a service computer on the SNC network to the SNC mp0,
dp0, and dp1.

28 Configuring the SNC

Mapping

The Mapping page of the SNC Manager interface shows you the current mapping. When you hover the
mouse over a particular device, the following information about the device is displayed:

• Bus number

• Target ID

• LUN number

• Device Type

• Vendor ID

• Product Name

• Firmware Revision Number

• Serial Number

CAUTION

Device mapping is the process of defining what storage devices, tape drives, and changers hosts can
access through the SNC. Hosts determine available storage using a device map stored on the SNC. The
device map routes all commands from the SNC iSCSI address to the appropriate SCSI device. This
mapping needs to be defined when the SNC is first set up. See Figure 10

Figure 10 Physical and Virtual Connection Possibilities With the SNC

If you change the SCSI IDs of tapes or the library attached to the SNC
after setting up the SNC the first time, you must map the devices
again using the SNC Manager Mapping page.

.

The device map is persistent across reboots, so storage will always be presented at the same LUN ID until
the map is adjusted. If a storage device is off-line when device discovery occurs, its LUN ID will be reserved
so that when it comes back online, it will retain the same ID. When adding new storage devices, the device
map needs to be redefined.

SCSI devices are mapped using the designations for the SCSI bus, target and LUN.

SNC 450x User’s Guide 29

Note

• Changing the device map can affect the host’s view of devices and your

application configuration.

• If the SCSI devices are not cabled or terminated properly, they may not show

up in the mapping.

• SCSI devices mapped by the SNC are visible through both data ports. This

allows library devices to be accessed on either data port when both data ports
are connected to the IP SAN.

• The SNC automatically maps all devices on startup.

CAUTION

Ensure all I/O to the SNC has stopped before proceeding with
mapping through the SNC Manager.

Mapping Devices Automatically

1 If you have not already, open an SNC Manager session.

For instructions, refer to Opening an SNC Manager Session

2 Click Mapping.

The iSCSI Mapping page is displayed.

3 Click AutoMap

4 Click Submit.

All the CLI commands necessary to enable mapping and the command

norestart

5 On the Mapping page, examine the mappings.

• If devices are not properly displayed, open the SNC Manager Advanced page. In the Enter a CLI
command text box, enter the SCSITargets command to make sure all devices are online. Then
enter the autoMap command. Refer to SCSITargets [port number]
page 57.

• If devices are not properly displayed, use the SNC Manager Advanced page and the route
command to manually map devices. Use the route command if devices have not been discovered
in order by the autoMap command. Refer to route iSCSI [lun] [SCSI | delete] <SCSI btl>

81. The LUN IDs should be in the order of the SCSI IDs.

will be performed.

on page 25.

saveconfiguration

on page 83 and autoMap on

on page

• For detailed troubleshooting procedures, refer to Troubleshooting

• If devices still are not properly displayed, contact ATAC.

6 Go to the Restart page.

7 Click Restart to make permanent any changes you have made since the last firmware restart.

Restarting the firmware can take a few minutes. Refer to firmwareRestart

Mapping Devices Manually

1 If you have not already, open an SNC Manager session.

For instructions, refer to Opening an SNC Manager Session

2 Click Mapping.

The iSCSI Mapping page is displayed.

3 Drag and drop icons representing the unmapped SCSI devices to the appropriate iSCSI LUN.

30 Configuring the SNC

on page 41.

on page 62.

on page 25.

• Ensure the SNC is mapped to iSCSI LUN 0.

• Map the SCSI devices with sequential IDs starting at 0 for each device.

4 Click Submit.

All the CLI commands necessary to enable mapping and the command

norestart

• If devices are not properly displayed, open the SNC Manager Advanced page. In the Enter a CLI
command text box, enter the SCSITargets command to make sure all devices are online. Then

enter the autoMap command.

• If devices are not properly displayed, you can use the SNC Manager Advanced page and the route
command to manually map devices. Use the route command if devices have not been discovered
in order by the autoMap command. The LUN IDs should be in the order of the SCSI IDs.

will be performed.

saveconfiguration

• For detailed troubleshooting procedures, refer to Troubleshooting

• If devices still are not properly displayed, contact ATAC.

5 Go to the Restart page.

6 Click Restart to make permanent any changes you have made since the last firmware restart.

Restarting the firmware can take a few minutes. Refer to firmwareRestart

on page 41.

on page 62.

Other Ways of Connecting to and Monitoring the SNC

Note

Using Telnet

Up to three Telnet sessions can be conducted simultaneously. A serial port session can use the CLI while
Telnet sessions are open. Whichever session issues the first “set” CLI command can continue to issue set
commands, while the other sessions can only issue “get” commands or display information. Once a
connection is established, refer to Using the Command Line Interface (CLI)
commands.

1 Connect to the SNC from a computer on the same Ethernet network.

2 Start a Telnet session.

The recommended management tool for the SNC 450x is the SNC Manager
interface.

on page 51 for lists of valid

Note

3 At the Telnet prompt, issue the open command:

telnet > open x.x.x.x

where x.x.x.x is the IP address of the SNC.

Note

4 If you have to specify a port type, enter the port type telnet and the terminal type vt100.

SNC 450x User’s Guide 31

There is more than one way to connect to the SNC using a Telnet
program.Your Telnet program may operate differently than in the following
instructions.

To obtain the IP address of the SNC, refer to the information you recorded after
completing Step 2

Management Port on page 21.

on page 22 in the section Connecting to the Ethernet

port type:telnet
terminal type: vt100

5 Enter the default values for the username, “admin”, and the password, “Password”, if you did not set

new values in Connecting to the Ethernet Management Port

on page 21.

Note

The username and password are case sensitive.

username:admin
password:Password

6 Enter the appropriate CLI management commands.

32 Configuring the SNC

Updating Firmware

Several processors control the flow of data in the SNC. The firmware to control these processors can easily
be upgraded in the field using the PUT command from an FTP connection or ZModem utility over a serial
connection to overwrite the previous firmware with new firmware. The SNC firmware is distributed as a
compressed ZIP file. This chapter provides instructions for updating the firmware when your computers are
running a Microsoft® Windows® operating system.

FTP is the faster method for updating firmware.

Updating Firmware Using FTP

1 On a computer that is on the same Ethernet network as the SNC, extract the firmware image file (its

extension is *.ima) from the ZIP archive to the personal computer hard drive. Note the path and
filename.

2 Start up an FTP program on the computer. The FTP program must be in binary mode.

Note

3 At the FTP prompt, issue the open command:

There is more than one way to connect to the SNC using an FTP
program.Your FTP program may operate differently than in the following
instructions.

ftp > open x.x.x.x

where x.x.x.x is the IP address of the SNC management port.

Note

4 Enter the default values for the username, “admin”, and the password, “Password”, if you did not set

new values in Changing the Default Username and Password

Note

username:admin
password:Password

SNC 450x User’s Guide 33

To obtain the IP address of the SNC, refer to the information you recorded in
the section Connecting to the Ethernet Management Port

The username and password are case sensitive.

.

on page 26.

5 Use the PUT command to download the firmware from the directory on your personal computer

determined in Step 1

ftp > put c:\SNC_firmware\I2500110.ima

Press Enter.

. For example:

CAUTION

6 Once the download is complete, turn off power to the SNC, then turn it on again to activate the new

firmware.

DO NOT INTERRUPT THE UPDATE PROCESS. DO NOT TURN OFF
THE PERSONAL COMPUTER OR THE SNC UNTIL READY IS
RETURNED AT THE END OF THE UPDATE. INTERRUPTING THE
UPDATE PROCESS WILL MAKE YOUR SNC INOPERABLE AND YOU
WILL HAVE TO RETURN IT FOR REPAIR.

Updating Firmware Using ZModem

1 Ensure that all I/O through the SNC has stopped.

2 Connect to the SNC serial port.

For instructions, refer to the section Connecting to the Serial Port

3 On the personal computer, extract the firmware image file (its extension is IMA) from the ZIP archive.

Note the path and filename.

4 Once the Ready prompt appears, type the following command:

ZMODEM RECEIVE

Press Enter.

on page 18.

The SNC displays the message that it is preparing to receive a file from your terminal program.

5 On the terminal program, choose Transfer Send File/ZModem send.

6 In the Send File box, enter the current SNC IMA file name or click the Browse button to find it. For

example:

Ready
put c:\SNC_firmware\I2500110.ima

7 Click Send File

8 The SNC displays a message stating that the file has been received. Then it displays a warning not to

turn off the SNC for 60 seconds. When the file transfer is complete, the Ready prompt reappears.

CAUTION

9 When the SNC Ready prompt returns, issue the firmwareRestart command to invoke the new

firmware.

.

DO NOT INTERRUPT THE UPDATE PROCESS. DO NOT TURN OFF
THE PERSONAL COMPUTER OR THE SNC UNTIL READY IS
RETURNED AT THE END OF THE UPDATE. INTERRUPTING THE
UPDATE PROCESS WILL MAKE YOUR SNC INOPERABLE AND YOU
WILL HAVE TO RETURN IT FOR REPAIR.

34 Updating Firmware

Using the SNC Manager Interface

SNC Manager is a monitoring and configuration tool accessible through a web browser. Platform
independent, SNC Manager contains all the current capabilities of the CLI in a user-friendly GUI interface.
A menu provides access to various pages for information and configuration operations. For instructions on
accessing SNC Manager, refer to Opening an SNC Manager Session

Navigating SNC Manager

All pages are accessible by clicking on their links on the left side of the page. You can also go back one
page or go to the home page by clicking the links on the left side of the page. See Figure 11

on page 25.

.

Note

After making changes on a page, click the Submit button at the bottom. Clicking this button is equivalent to
typing in the saveConfiguration norestart command.

If a firmware restart is required to make the requested change permanent, go to the Restart page and click
Restart. For more information about this command, refer to saveConfiguration <status>

82.

Clicking any of the red links displays a help window.

on page

SNC 450x User’s Guide 35

Figure 11 SNC Manager Status Page

Each page in the SNC Manager interface provides information and configuration parameters based on a
specific element. Each page can be reached through the menu at the left side of each page.

Checking Status

The Status page displays SNC information which is usually found in the POST or after using an Info
command in the CLI. Refer to info

• Vendor ID

• Product ID

• Firmware revision number

• Serial number

• Valid internal temperature range

• Current internal temperature

• Current voltage

• Ethernet port IP addresses

• Ethernet port status for data ports 0 and 1

on page 79.

36 Using the SNC Manager Interface

Configuring the Serial Port

You can configure the serial port using the Serial Port Configuration page.

• Baud rate

• Echo

Configuring the Time and Date

You can configure the real-time clock or access a remote time server using the Time & Date Configuration
page.

CAUTION

Configurable options are the following:

• Enables/disables the network time protocol

• Time server

• Time zone

• Manually set time

• Manually set date

The SNC must remain powered on for more than 24 hours to ensure
the date and time are set.

Configuring the Ethernet Port

CAUTION

The Ethernet Port Configuration page configures each port independently. If you change the IP address
of the Ethernet port you are using to access SNC Manager (the mp0), the change does not take effect until
after you reboot the SNC.

Use the SNC Manager to manually set IP addresses for the data ports,
gateway and subnet mask. Consult your service representative
before making other changes to the default settings.

• Enable/disable DHCP

• IP address

•IP gateway

• IP subnet mask

• Ethernet speed

• MTU (Maximum Transmission Unit)

Configuring the SCSI Ports

CAUTION

Each SCSI port is configured separately. The display includes a list of attached devices for each bus. You
can configure the following options:

SNC 450x User’s Guide 37

Consult your service representative before making changes to the
default settings.

• Port bus speed

• Synchronous transfer

• Wide transfer

• Initiator ID

• Bus reset on startup

• Bus termination

• SCSI port reset

Configuring iSCSI

CAUTION

The iSCSI Configuration page allows you to configure iSCSI parameters. You can configure the following
options:

• iSCSI alias

• iSCSI port number

• iSNSLoginControl

• iSNSServer

Consult your service representative before making changes to the
default settings.

Configuring the SNC

You can change a number of parameters which affect the SNC on the SNC Configuration page. You can
configure the following options:

•User name

• New password

• Confirm password

• Minimum operating temperature (internal)

• Maximum operating temperature (internal)

• Operating temperature warning

• Identify the SNC

• Restore defaults

Mapping

The Mapping page displays the default mapping. It allows you to change the mapping by dragging icons
representing the SCSI devices to the appropriate LUN.

If you change the SCSI IDs of tapes or the library attached to the SNC after setting up the SNC the first time,
you must map the devices again. Refer to Connecting to the Ethernet Data Ports

38 Using the SNC Manager Interface

on page 27.

Configuring Advanced Properties

The Advanced CLI configuration page allows you to input any CLI command available through the SNC.
Refer to Management Port Command Reference

on page 51.

Note

1 In the text box, type the CLI command.

2 Click the Submit button.

This is equivalent to typing in the CLI command into a TCP/IP or serial port CLI session.

3 A text field beneath the box lists the most recent commands issued to the SNC through this page. If you

enter an incorrect parameter, the CLI help text is displayed, showing the parameters available.

4 If your entry was correct, type at the prompt

saveConfiguration

5 Click the Submit button. Your changes are implemented.

6 To make the changes permanent, restart the SNC (refer to Restarting the Firmware

CLI commands are case insensitive. You can type all upper or all lower
case or a mixture. Upper and lower case in this guide and the Help screen
are for clarification only.

).

Restarting the Firmware

The Restart Firmware page implements a firmware restart of the SNC and makes permanent any changes
you have made since the last firmware restart. Restarting the firmware can take a few minutes. Refer to

firmwareRestart

1 Click the Restart button.

on page 62.

A box tells you to wait until the counter gets to 0, then the browser refreshes.

2 If the browser does not refresh after the counter gets to 0, click the link to refresh it manually.

Getting Help

The Help page gives help information about the CLI commands and troubleshooting tips with links to pages
with help text for each category of options and one link to the Troubleshooting Tips and FAQs page on
the website.

Contact information for technical support is on the right. Help is always available by clicking any word shown
in red on the screen. You can also learn about help by referring to the help [command name]

on page 78.

SNC 450x User’s Guide 39

40 Using the SNC Manager Interface

Troubleshooting

If it is clear that a particular component system is at fault in a problem situation, go directly to that
component. If it is not clear, the best approach is to troubleshoot using the inside-out method. Begin with
the device(s) connected to the SNC first, then work your way out:

• SCSI devices

• SNC SCSI ports

• SNC internal configuration

• SNC Ethernet/IP ports

• LAN/WAN

• Ethernet host adapter or NIC in host

• iSCSI OS driver

•OS

• Application

Check the Host Event Log

Check the event log on the host. Look for the most recent entries and determine what could be causing a
problem, then go to that event and continue troubleshooting.

Check the SNC Event and Trace Logs

Check the SNC event log through the CLI. See Diagnostic Commands on page 53. Look for the most recent
entries and determine what could be causing a problem. Then go to that event and continue
troubleshooting.

Visually Inspect LEDs

Light Emitting Diodes (LEDs) are located on both sides of the SNC 4500 and on the front of the SNC 4501.

• For the position of these LEDs on the SNC 4500, see Figure 12
to Table 1

SNC 450x User’s Guide 41

on page 42 and Table 2 on page 43.

on 42 and Figure 13 on 43. Refer

• For the position of these LEDs on an SNC 4501, see Figure 14 on 43 and refer to Table 3 on page

44.

If there is a non-fatal power supply problem, or if a problem is detected before shut down occurs, the Fault
LED flashes. The Fault LED also flashes briefly during start up. For more information, refer to Visually

Inspect LEDs on page 41.

Figure 12 LEDs on the Front of the SNC 4500

Table 1 LEDs on the Front of the SNC 4500

LED Appearance Meaning

Ethernet speed LED amber speed is 1 Gb/sec

Ethernet speed LED green speed is 100 MB/sec

Ethernet speed LED off speed is 10 MB/sec, or no link

Ethernet BUSY LED blinking I/O activity

Fault LED on, amber unit is starting up

Fault LED blinking fatal fault imminent

Ready LED green on POST completed, unit ready

SCSI bus activity LED blinking I/O activity

SCSI bus activity LED solid heavy I/O activity

Power green on sufficient power to operate

Power off power is insufficient

42 Troubleshooting

Figure 13 LEDs on the Back of the SNC 4500

Table 2 LEDs on the Back of the SNC 4500

LED Appearance Meaning

Ethernet activity LEDs green, blinking I/O activity

Ethernet activity LED off no link

Ethernet speed LEDs amber on speed is 1 Gb/sec

Ethernet speed LED off speed is 10/100 MB/sec

Fault LED on, amber unit is starting up

Fault LED blinking fatal fault imminent

SCSI bus activity LED blinking I/O activity

Figure 14 LEDs on the SNC 4501

SNC 450x User’s Guide 43

Table 3 LEDs on the SNC 4501

LED Appearance Meaning

Ethernet activity LEDs green, blinking I/O activity

Ethernet activity LED off no link

Ethernet speed LEDs amber on speed is 1 Gb/sec

Ethernet speed LED off speed is 1/100 Mb/sec

SCSI bus activity LED blinking I/O activity

Fault LED on, amber unit is starting up

Fault LED blinking fatal fault imminent

Each SCSI bus has its own LED to show activity on that bus. The LED blinks when I/O is occurring and is
solid when there is heavy activity.

The Fault LED lights yellow when the SNC is turned on, then immediately goes dark. Software activates
the LED if there is a system error.

Check for Problems on Attached Devices

Check the following in order to find problems on attached devices:

•LEDs

• Display panels

• Firmware levels

• Operability

Check Host Versions

Check the following to find problems on attached hosts:

• Operating system version

• Service pack version

• Host adapter version

• Host adapter firmware version

• Host adapter device driver version

• iSCSI driver version

If an update is required, perform the update. For an updated list of support SNC host platforms and host
adapters, visit www.adic.com.

Check SNC Product Versions

For a current list of required updates, visit www.adic.com.

44 Troubleshooting

1 Start SNC Manager.

To start and use the interface, including how to access the version information, refer to Using the SNC

Manager Interface on page 35.

2 If an update is needed, download the update from www.adic.com.

Refer to Updating Firmware

on page 33.

Component Check

Use this procedure to check system components. For more information on the commands used in this
procedure, refer to Management Port Command Reference

Checking SCSI Devices

1 Check SCSI devices to make sure they are all set to different SCSI IDs.

By default, the SNC SCSI ports use SCSI ID 7 so drives should use IDs 0 through 6 and 8 through 15.

2 Check the SCSI device power. Make sure the devices are powering up.

3 Watch the drive lights before, during, and after startup. Many drives have term power lights that should

be on before startup and turn off when system boots.

4 Verify the external terminator is the correct type and does not have damaged pins.

5 Check cable integrity. Check the cables for solid connections. Make sure they are screwed down.

Inspect cable ends for bent pins.

6 If termination is correct, and the problem persists, try drives one at a time with different cables, adding

drives and cables until the problem occurs. This helps pinpoint the drive or cable causing the problem.

on page 51.

7 Check with the manufacturer of SCSI device(s) for further troubleshooting methods.

If SCSI devices appear to be working order, move on to the SNC SCSI port section.

Checking the SNC SCSI Ports

1 Verify the SNC has its termination set properly. By default, termination is enabled.

2 Either through the SNC Manager or CLI, perform a SCSI bus scan on each SCSI port.

See SCSI Configuration Commands

If no devices appear, re-check SCSI cables and termination. If garbage information appears, the
problem is most likely a bad SCSI cable or termination.

3 Check the internal cabling of the SCSI device.

LVD SCSI cable lengths are limited to 12.5 meters. Longer cable lengths can cause problems. Internal
cabling is also considered when calculating total cable length. For details, refer to Connecting to the

Serial Port on page 18.

4 Some older SCSI devices improperly negotiate with the SNC SCSI port. If older devices are not showing

up, contact your service representative.

5 If all devices appear, invoke the ScsiTargets command several times on each SCSI port to verify that

the devices can be seen. If devices disappear and disappear, then appear again, the problem is most
likely a SCSI cable. For information on the ScsiTargets command, refer to SCSITargets [port number]
on page 83.

on page 54.

If all devices appear and remain, move to the SNC internal configuration section.

SNC 450x User’s Guide 45

When changing any setting on the SNC the configuration must be saved by using either the
saveConfiguration CLI command or through the SNC Manager interface.

Checking the Serial Port

1 Verify you have the correct settings and that your terminal is configured to:

• Baud rate: 15200

• Data bits: 8

• Stop bits: 1

• Parity: off

• Flow control: None

2 Verify that your serial cable is less then two meters in length.

Checking the SNC Internal Configuration

Verify that the SCSI devices are mapped properly. Check in the SNC Manager interface or use the
routedisplay iSCSI command to show mappings. If devices do not appear, power down the SNC and
power back on. See Mapping Commands

27.

When changing any setting on the SNC, the configuration must be saved by using either the
saveConfiguration CLI command or through the SNC Manager interface.

on page 56 and Connecting to the Ethernet Data Ports on page

Checking SNC Ethernet Ports

1 Check Ethernet cable integrity. Check the cables for solid connections. Cat5 cable can cause

connection issues with Gigabit Ethernet. Cat6 cable is the best cabling for the SNC.

2 Verify the IP address, subnet mask, and gateway are properly set on each data port on the SNC for your

network environment. See Configuring the Ethernet Port

3 Verify that the Ethernet speed is set to auto: invoke the get EthernetSpeed all command, check the

Ethernet page of the SNC Manager interface, or check the LED link lights to determine if the Ethernet

speed is correct. Refer to Visually Inspect LEDs

4 Determine if the SNC is set to get its IP information from a DHCP server. If so, verify that the DHCP

server has available IP addresses. Refer to Ethernet Ports

5 Verify that each used Ethernet port on the SNC can be pinged from the desired host. Refer to ping [port

number] [IP address] <count> <size> on page 79.

If the host cannot ping the SNC ports and the SNC ports are properly configured, continue to the Local
Area Network/Wide Area Network section, Checking the LAN/WAN

Verify that each port on the SNC can ping each desired host. Refer to ping [port number] [IP address]

<count> <size> on page 79. If the SNC cannot ping the host, continue to Checking the LAN/WAN on

page 47.

6 If using DHCP, verify that the DHCP server is assigning the correct IP information to the host.

7 Some older switches/hosts cannot auto negotiate between the SNC and the switch/host at the desired

speed. You could have to force the host/switch or the SNC to the desired speed.

on page 41.

on page 37.

on page 4.

on page 47.

8 Verify that the host is logging into the SNC correctly by viewing the Connections page and determining

if there a “session open” status.

46 Troubleshooting

9 Verify that you are using the correct log in procedure for your initiator. For example: When connecting

using the Adaptec initiator, the log on screen requests the SNC iqn (iSCSI qualified name). If left blank,
Adaptec will not be able to log in. Enter “iSCSI” into this field for auto iqn discovery.

When changing any setting on the SNC the configuration must be saved by using either the
saveConfiguration CLI command or through the SNC Manager interface.

Checking the LAN/WAN

1 Verify that the switch/switches are segmented properly so that hosts and the SNC have access to each

other.

2 If there are routers involved in the setup, make sure the IP addresses and/or MAC addresses of the

SNC are allowed through the router.

3 Verify that the switch can see the SNC on the port(s) in question. Refer to your switch vendor’s guide

for more information.

Checking the iSCSI Host Adapter or NIC

iSCSI host adapters appear as a type of Storage Controller to the host OS, not as a standard NIC. These
adapters usually have hardware acceleration to offload the TCP processing from the host. Configuration of
these adapters is usually done through the vendor’s own utility and not through the OS itself.

NICs come in two types: accelerated and un-accelerated. Accelerated NICs use some hardware to offload
some of the TCP processing from the host. Un-accelerated NICs make the OS do all TCP processing.

To check the iSCSI host adapter or NIC

1 Check cable integrity. Check the cables for solid connections. Make sure they are plugged in properly.

Inspect cable ends for broken clips and improper wiring.

2 Verify that the iSCSI host adapter or NIC is configured with the correct IP information.

3 If using DHCP, verify that the DHCP server is assigning the correct IP information to the host.

4 Verify that the hosts are running the recommended driver and firmware level for the iSCSI host adapter

or NIC vendor.

5 Verify that the hosts and the SNC are using the same port number to communicate iSCSI. The default

port number for the SNC is 3260. Refer to get iSCSIPortNumber

6 Make sure the host adapter/NIC is configured to log into the SNC. Some iSCSI host adapters do not re-

login upon reboot or unplug/replug event without marking a check box.

7 Some older switches cannot autonegotiate between the host and the switch properly. You could have

to force the host or switch to the desired speed.

For a NIC using an OS iSCSI driver, continue to the iSCSI OS driver section.

on page 70.

Checking the iSCSI OS Driver

This section is for hosts using a driver that allows the OS to talk to iSCSI targets via a NIC, not an iSCSI
storage adapter.

1 A PC using an iSCSI storage adapter and an iSCSI OS driver might not work correctly on the same

machine. Check with the vendors to make sure they are compatible.

2 Verify that the PC has the latest iSCSI driver as well as the required service packs and patches. Check

with the iSCSI OS driver vendor for more information.

3 Verify that the iSCSI OS driver has started. Look under Device Manager for Windows or lsmod for

Linux.

SNC 450x User’s Guide 47

4 Verify that the iSCSI OS is still looking for the SNC at the right IP address.

5 If using DHCP, verify that the DHCP server is assigning the correct IP information to the host. Refer to

Ethernet Ports

6 Verify that the NIC is configured with the correct IP information.

7 Verify that the hosts and the SNC are using the same port number to communicate iSCSI. The default

port number for the SNC is 3260. Refer to get iSCSIPortNumber

8 Check cable integrity. Check the cables for solid connections. Make sure they are plugged in properly.

Inspect cable ends for broken clips and improper wiring.

on page 4.

on page 70.

Checking the Operating System

1 Verify that the OS has the required service packs or patches installed. If not, obtain the proper service

packs and patches and install them.

2 Some iSCSI host adapters and iSCSI OS drivers do not always automatically find new targets when

plugged in or when forced to rescan. Reboot the hosts.

3 Check if the vendor has a new driver. If so, install it.

Checking the Applications

1 Verify that the application is running the latest device drivers for the devices connected to SNC. If not,

get the latest device drivers and install them.

2 Verify with the application vendor if the iSCSI technology is supported on the version of the application

being used.

Performance Issues

If the host is not getting the performance it should, check the following items.

Checking SCSI Devices

1 Verify that the devices are running at their highest possible SCSI speed. Refer to SCSI Configuration

Commands on page 54.

Mixing SE and LVD devices on the same SCSI bus forces the speed of the bus to SE, thus slowing
faster LVD devices. The SNC cannot accelerate an already slow device. Refer to Connecting to the

Serial Port on page 18.

2 Verify that the proper terminator is being used. An SE terminator forces the SCSI bus to SE speeds.

Checking the SNC SCSI Ports

1 Verify that the SCSI port configuration is set to the highest speed using the SNC Manager interface or

CLI. Refer to SCSI Configuration Commands

on page 54.

The SNC SCSI port speed, wide negotiation, and sync negotiation settings all affect the speed of the
port. By default, these settings are set for optimal speed.

2 Verify that the SCSI devices are equally distributed between the SCSI ports. Refer to Connecting to the

Serial Port on page 18. Optimal performance is seen when only two high-speed SCSI devices are

connected to each SCSI port.

48 Troubleshooting

Checking the SNC Ethernet Ports

1 Verify that the data ports are set to auto negotiate or forced to 1000 Mbs. The CLI command get

ethernetspeed all shows the current speed.

Refer to Configuring the Ethernet Port

2 Verify that the MTU size is set to optimal setting for the LAN/WAN environment.

Refer to Configuring the Ethernet Port
the SNC. Smaller frame sizes causes a decrease in performance.

3 Verify that the SNC TraceLog feature is disabled. Tracelog tracks certain events that occur in the SNC.

With this log enabled, performance suffers.

Refer to Diagnostic Commands

on page 37.

on page 37. 9k frame size is the current optimized frame size for

on page 53.

Checking the LAN/WAN

1 Verify that the MTU size is set to optimal setting for the LAN/WAN environment. Refer to set DPMTU

[port number] [MTU choices] on page 86.

9k frame size is the current optimized frame size for the SNC. Smaller frame sizes causes a decrease
in performance. Many switch and router vendors do not support the larger frame size of 9k or 16k. Refer
to Performance Issues

2 Verify that each associated port in the IP SAN is configured for 1000Mbs.

IP SAN traffic should be segmented so that it does not interfere with the main LAN network traffic.For
better performance, the IP SAN should be on its own set of hardware.

3 Verify that packets are not being dropped along the LAN/WAN. Many utilities track packet activity and

switch statistics.

on page 48.

Checking the Ethernet Host Adapter or NIC

Ethernet Storage Adapters generally outperform accelerated NICs and un-accelerated NICs by offloading
most of the processing from the host.

An accelerated NIC provides some offloading, but still requires a host OS iSCSI driver, making the host
spend more CPU cycles.

An un-accelerated NIC does not offload anything so the CPU must do much of the processing.

To check the Ethernet host adapter or NIC

1 Verify that the adapter or NIC is sent to auto-negotiate or forced to 1000 Mbs.

2 Set the MTU size to the largest MTU size supported in the LAN/WAN. Refer to set DPMTU [port

number] [MTU choices] on page 86.

9k frame size is the current optimized frame size for the SNC. Smaller frame sizes causes a decrease
in performance. Many switch and router vendors do not support the larger frame size of 9k or 16k. Refer
to Performance Issues

3 Set the maximum transfer size to the most efficient size for the intended target(s). For many tape drives,

64k is the optimal setting.

on page 48.

Checking the Applications

Some applications can be configured to change transfer sizes. Configure the application for the optimal size
for the particular SCSI device(s) connected to the SNC.

SNC 450x User’s Guide 49

Checking the Host System

The faster the host, the faster your transfer times will be. The work flow goes only as fast as the slowest
connection in the host system, so transferring data from an IDE drive, 100Mb connection, a DLT 4000, a
high speed RAID volume across the country, or other applications, slows the system no matter how fast
everything else is in the system.

1 Verify that the iSCSI storage adapter or NIC is connected to the fastest PCI bus connector supported

by the adapter or NIC.

If the adapter supports PCI-X, place the adapter in a PCI-X slot. If one is not available, the host might
not achieve the optimal performance capable from the adapter.

Even placing a PCI-X adapter into a 64 bit 66 MHz slot loses performance. Some adapters adjust clock
speed depending on the speed of the PCI slot into which they are plugged.

2 The host OS disk and swap disk/partition/file should be on a high speed drive such as a SCSI drive to

minimize the time needed to access the host’s virtual memory.

The more memory a system has, the less time it spends accessing virtual memory (hard drive space).

Checking the Operating System

If possible, eliminate swap space and virtual drives which require large amounts of system memory.
However, the OS might not allow the elimination of swap space. An OS set to run many kinds of different
servers spends much of its CPU cycles on other operations, thus slowing down performance.

Using Jumbo Frames

Verify that if you are using jumbo frames, your data path (all hardware between the host and target including
switches and routers) supports jumbo frames. Set the host and the SNC to 1.5K frames.

Updating Firmware

3 Verify that your FTP client is set for binary mode.

4 Try uploading the firmware through the serial port using the ZModem protocol. Refer to Updating

Firmware Using ZModem on page 34.

WARNING

DO NOT INTERRUPT THE UPDATE PROCESS. DO NOT TURN OFF
THE PERSONAL COMPUTER OR THE SNC UNTIL READY IS
RETURNED AT THE END OF THE UPDATE. INTERRUPTING THE
UPDATE PROCESS WILL MAKE YOUR SNC INOPERABLE AND YOU
WILL HAVE TO RETURN IT FOR REPAIR.

50 Troubleshooting

Management Port Command Reference

All available commands are listed alphabetically beginning on page 57, and alphabetically by functional
group in Table 6
the alphabetical list.

Using the Command Line Interface (CLI)

CLI commands are case insensitive. You can type all upper or all lower case or a mixture. Upper and lower
case in this guide and the help screen are for clarification only. More than half the commands use the
following format:

[Get|Set] Command Name [Parameter 1| Parameter 2]

followed by the Enter key. Arguments which are required are enclosed in square brackets [ ] while
arguments which are optional are enclosed in angle brackets < >.

“Set” commands change the value of a parameter or configuration setting and sometimes require a
saveConfiguration command and a restart of the system before implementation. The restart can be
accomplished as part of the saveConfiguration command or by using a separate firmwareRestart
command. A number of “set” commands can be issued before the saveConfiguration command.

on page 52. References from the table connect you to an explanation of the command in

Note

Commands which are not preceded by a “get” or “set” take effect immediately. See Table 4
commands that are not preceded by “get” or “set."

SNC 450x User’s Guide 51

The response to a “set” command is either an error message or the
Ready. *. statement. The asterisk indicates you must use a
saveConfiguration command after the "set" command has been completed.
You are prompted to reboot if a restart is necessary.

for a list of

Table 4 Commands not Preceded by "Get" or "Set"

automap firmwareRestart route

clearEventLog

clearTraceLog

displayEventLog

displayTraceLog

dumpEventLog

dumpTraceLog

1

1

1

1

1

1

help routeDisplay

info saveConfiguration

isReserved SCSIPortList

ping SCSIPortReset

reserve SCSITargets

restoreConfiguration Zmodem

exit

1 Special troubleshooting command. Use with ATAC guidance.

The arguments to many commands in this guide are represented by the abbreviations listed in Table 5 .

Table 5 Abbreviations Used by the CLI

Abbreviation Meaning Numeric Argument Ranges

mp Management port 0

dp Data port 0 - 1

sb SCSI bus number 0 - 1

sl SCSI LUN ID 0 - 7

st SCSI target ID 0 - 15

All available commands are listed alphabetically by group in Table 6

.

Table 6 Alphabetical Listing of Commands by Functional Group

Command Meaning Page

General Commands

get VerboseMode display whether or not verbose mode has been enabled 77

help display a list of available commands or a detailed, command-

78

specific explanation

restoreConfiguration restore a previous configuration 80

saveConfiguration save the current configuration 82

set VerboseMode enable or disable verbose mode 101

Maintenance Commands

firmwareRestart cause the SNC to reboot and then re-initialize its firmware 62

get BridgeModel display the SNC model name 63

get BridgeName display the name of a particular SNC 63

52 Management Port Command Reference

Table 6 Alphabetical Listing of Commands by Functional Group

Command Meaning Page

get Date display the current date 63

get MaxOpTemp display the maximum internal operating temperature 71

get MinOpTemp display the minimum internal operating temperature 71

get OpTempWarn display the number of degrees before a thermal control event

71

warning is output

get SNTP display whether or not NTP (Time Network Protocol) has

74

been enabled

get SNTPServer display the NTP server address 74

get Time display the current time 76

get TimeZone display the current time zone 76

get Username display the current username 77

reserve prevent other users from accessing the SNC 80

SCSIPortReset reset the specified SCSI bus 83

set BridgeName create a name for a particular SNC 83

set Date set the current date 84

set MaxOpTemp set the maximum operating temperature 92

set MinOpTemp set the minimum operating temperature 93

set OpTempWarn set the number of degrees before a thermal control event

93

warns about the temperature change through system log
entries

set Password set a password for Telnet, SNC Manager and ftp sessions 93

set SNTP determine whether or not the SNC tries to contact a specified

74

Network Time Protocol (NTP) server

set SNTPServer set the Network Time Protocol (NTP) server address 97

set Time set the time 99

set TimeZone set the time zone 100

set Username set a username for Telnet, SNC Manager and ftp sessions 101

ZModem allow transfer of a firmware image to or from the SNC using

102

the ZModem file transfer protocol through the RS-232
interface

Diagnostic Commands

clearEvent Log clear the contents of the event log 57

clearTraceLog clear the contents of the trace log 58

displayEventLog display the contents of the event log 58

SNC 450x User’s Guide 53

Table 6 Alphabetical Listing of Commands by Functional Group

Command Meaning Page

displayTraceLog display the contents of the trace log 59

dumpEventLog dump the contents of the event log 60

dumpTraceLog dump the contents of the trace log 61

get BridgeModel display the SNC model name 63

get DisplayEventLogFilter display the filters for specific SNC subsystems 64

get DisplayTraceLogFilter display the filters for specific SNC subsystems 65

get EventLog display the contents of the event log 66

get EventLogFilter display the filters for specific SNC subsystems 67

get IdentifyBridge display whether or not IdentifyBridge is enabled 67

get Temperature display the current internal temperature of the SNC 76

get TraceLog display the contents of the trace log 76

get TraceLogFilter display the filters for specific SNC subsystems 77

get Voltage display the current voltage 78

get WrapEventLog display whether or not WrapEventLog is enabled 78

get WrapTraceLog display whether or not WrapTraceLog is enabled 78

info display version numbers and other product information 79

isReserved display the reservation status of the current SNC session 79

SCSITargets display a list of SCSI devices operational on the referenced

83

SCSI port

set DisplayEventLogFilter filter the data for specific SNC subsystems 84

set DisplayTraceLogFilter filter the data for specific SNC subsystems 85

set EventLog record various system events to the event log 87

set EventLogFilter filter the data for specific SNC subsystems 87

set identifyBridge cause the Fault LED on the front panel of the SNC to blink 88

set TraceLog record various system events to the trace log 100

set TraceLogFilter filter the data for specific SNC subsystems 100

set WrapEventLog allow or disallow the event log to be overwritten 101

set WrapTracelog allow or disallow the trace entries to be overwritten 102

SCSI Configuration Commands

get SCSIInitId display the SCSI initiator ID to be used for a specific port 72

get SCSIPortBusSpeed display the SCSI port bus speed 72

get SCSIPortResetOnStartup display whether or not the SCSI port resets on startup 73

54 Management Port Command Reference

Table 6 Alphabetical Listing of Commands by Functional Group

Command Meaning Page

get SCSIPortSyncTransfer display whether or not the SCSI transfers are negotiated with

73

devices

get SCSIPortTermination display the SCSI internal termination 73

get SCSIPortWideTransfer display whether or not wide SCSI transfers are negotiated 74

get SpeedWrite display whether or not SpeedWrite has been enabled 75

get SpeedWriteDefault display whether or not SpeedWrite state applies by default

75

to new device mappings

SCSIPortList display available SCSI ports and their current status 83

set SCSIInitId set the SCSI initiator ID for a port 94

set SCSIPortBusSpeed set the bus speed for a SCSI port 94

set SCSIPortResetOnStartup specify whether or not the SCSI port should reset after

95

turning the unit on

set SCSIPortSyncTransfer specify whether or not synchronous SCSI transfers are

95

negotiated

set SCSIPortTermination set the SCSI port termination 95

set SCSIPortWideTransfer specify whether or not wide SCSI transfers are negotiated 96

set SpeedWrite improve the performance of WRITE commands 98

set SpeedWriteDefault specify SpeedWrite as the default performance level 99

iSCSI Configuration Commands

get iSCSIAlias display the name assigned to the SNC 69

get iSCSIChap display whether or not CHAP has been enabled 69

get iSCSIChapSecret display the incoming and outgoing secrets (passwords) for

70

iSCSI CHAP sessions

get iSCSIPortNumber display the number of the SNC port that iSCSI connections

70

use

get iSNSLoginControl display whether or not logins are controlled by an iSNS server 70

get iSNSServer display the IP address of the iSNS server 71

set iSCSIAlias set the name assigned to the SNC 90

set iSCSIChap determine whether or not the CHAP has been enabled 90

set iSCSIChapSecret set the incoming and outgoing secrets (passwords) for iSCSI

90

CHAP sessions

set iSCSIPortNumber set the number of the SNC port that iSCSI connections use 91

set iSNSLoginControl specify whether or not an iSNS server is being used 92

set iSNSServer set the IP address of a valid iSNS server 92

SNC 450x User’s Guide 55

Table 6 Alphabetical Listing of Commands by Functional Group

Command Meaning Page

Ethernet Configuration Commands

exit end the current TCP/IP CLI session 62

get DPMTU display the MTU (Maximum Transmission Unit) used by SNC

65

data ports

get EthernetSpeed display the Ethernet speed 66

get IPAddress display the IP address 67

get IPDHCP display whether or not DHCP is being used to set the IP

68

address

get IPGateway display the IP gateway 68

get IPSubnetMask display the IP subnet mask 69

ping send an ICMP echo request to the specified IP Address 79

set DPMTU set the MTU 86

set EthernetSpeed set the Ethernet speed 86

set IPAddress set the IP address 88

set IPDHCP set the DHCP server as the source of the SNC IP address 89

set IPGateway set the IP gateway address 89

set IPSubnetMask set the IP subnet mask 90

set Password set the password 93

set Username set the username 101

Serial Port Configuration Commands

get SerialPortBaudRate display the serial port baud rate 74

get SerialPortEcho display whether or not echo has been turned on 74

set SerialPortBaudRate set the serial port baud rate 96

set SerialPortEcho set the serial port echo feature on or off 97

Mapping Commands

automap rescan the SCSI bus and automatically assign iSCSI LUNs

57

to a subset of SCSI target destination devices visible to the
SNC

route assign iSCSI LUN addresses to a target destination device 81

routeDisplay display current mapping 82

SCSITargets display a list of SCSI devices operational on the referenced

83

SCSI port

56 Management Port Command Reference

Alphabetical Listing of Commands

autoMap

The automap command automatically assigns iSCSI LUNs to a subset of SCSI target destination devices
visible to the SNC. Existing valid maps are not deleted.

The following example shows a sequence of three commands. The first command is the routeDisplay
command. The output of this command displays the current device map. The second command is the
automap command. The third command is the routeDisplay command again. This time the new mapping,
the one assigned by automap, is displayed.

This command takes effect immediately.

Note

Here is the existing map:

Ready.
routedisplay iscsi
11
;Lun SB ST SL
;===================

0 Bridge
1 000
2 010
3 020
4 030
5 100
6 000
7 000
8 000

Now the automap command is run:

Ready.
automap
Ready.*

Issue the routedisplay command to display the new mapping:

Devices mapped by the SNC will be visible across both data ports.

routedisplay iscsi
8
;Lun SB ST SL
;===================
0 Bridge
1 0 0 0
2 0 1 0
3 1 2 0
4 1 3 0
5 0 6 0
Ready.

clearEventLog

CAUTION

SNC 450x User’s Guide 57

Contact ATAC before using this command.

The clearEventLog command clears the contents of the event log. No events are recorded until the
command has been completed. This command takes effect immediately.

Ready.
cleareventlog
Ready.

clearTraceLog

CAUTION

The clearTraceLog command clears the contents of the trace log. No events are recorded until the
command has been completed.This command takes effect immediately.

Ready.
cleartracelog
Ready.

displayEventLog <scroll>

Contact ATAC before using this command.

CAUTION

The displayEventLog <+|-|=|<esc>> command displays the most recent page of event log entries. Typing
a “+”, “-” or “=” (no quotation marks) causes the next, previous or same page of event log entries to be
displayed. No events are recorded until the command has been completed. Press ESC, then Return to exit
the command and return to CLI. New log entries begin.

The following is an example of a page of the displayeventlog command output, followed by a request for
the next page (+), followed by ESC and Return.

Contact ATAC before using this command.

Scroll Meaning

+ Display the next page of trace log entries

- Display the previous page of trace log entries

= Display the same page of trace log entries

Ready.
displayeventlog
Bridge Event Log

0137 10/08/2003 10:17:19 Bridge was booted/reset.
0138 10/08/2003 10:21:34 Bridge was booted/reset.
0139 10/08/2003 10:21:43 Unable to connect to an SNTP server
0140 10/16/2003 14:21:03 Bridge was booted/reset.
0141 10/16/2003 14:22:19 Bridge was booted/reset.
0142 10/16/2003 14:24:35 Bridge was booted/reset.
0143 10/17/2003 02:25:08 Unable to connect to an SNTP server
0144 10/17/2003 08:20:07 Bridge was booted/reset.
0145 10/17/2003 08:21:45 Bridge password was modified.
0146 10/17/2003 08:21:57 Bridge password was modified.

58 Management Port Command Reference

DisplayEventLog [ + | - | = | <ESC>] >> +
0132 10/07/2003 14:32:00 Voltage VCC Warning Level reached at 4.72 Volts
0133 10/07/2003 15:00:02 Rx Packet Error. Net #2
0134 10/08/2003 08:00:39 Bridge was booted/reset.
0135 10/08/2003 08:00:48 Unable to connect to an SNTP server
0136 10/08/2003 08:01:49 Voltage VCC Warning Level reached at 4.72 Volts

DisplayEventLog [ + | - | = | <ESC>] >>
Ready.

displayTraceLog <scroll>

CAUTION

The DisplayTraceLog <+|-|=|<esc>> command displays the most recent page of trace log entries. Typing
a “+”, “-” or “=” (no quotation marks) causes the next, previous or same page of trace log entries to be
displayed. No events are recorded until the command has been completed. Press ESC and Return to exit
the command and return to CLI. New entries begin. This command takes effect immediately.

Scroll Meaning

+ Display the next page of trace log entries

- Display the previous page of trace log entries

= Display the same page of trace log entries

Ready.
displaytracelog
ADIC SNC Trace Log W

0608 12/10/2003 11:25:22 Bus = 0 Target ID = 1
CDB = 03 00 00 00 20 00 00 00 00 00
00 00 00 00 00 00
Stat= 02
Sense Data = 70 00 02 00 00 00 00 1c 00 00
00 00 3a 00 00 00 10 13
0609 12/10/2003 11:25:22 Bus = 0 Target ID = 1
CDB = 1e 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00
Stat= 00
Sense Data = 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
0610 12/10/2003 11:25:22 Bus = 0 Target ID = 1
CDB = 03 00 00 00 20 00 00 00 00 00
00 00 00 00 00 00
Stat= 02
Sense Data = 70 00 02 00 00 00 00 1c 00 00
00 00 3a 00 00 00 10 13
0611 12/10/2003 11:25:22 Bus = 0 Target ID = 1
CDB = 4c 02 40 00 00 00 00 00 00 00
00 00 00 00 00 00
Stat= 00
Sense Data = 00 00 00 00 00 00 00 00 00 00

Contact ATAC before using this command.

SNC 450x User’s Guide 59

00 00 00 00 00 00 00 00
0612 12/10/2003 11:25:22 Bus = 0 Target ID = 1
CDB = 17 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00
Stat= 00
Sense Data = 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
0613 12/10/2003 11:25:22 Bus = 0 Target ID = 1
CDB = 03 00 00 00 20 00 00 00 00 00
00 00 00 00 00 00
Stat= 02
Sense Data = 70 00 02 00 00 00 00 1c 00 00
00 00 3a 00 00 00 10 13
0614 12/10/2003 11:25:22 Bus = 0 Target ID = 1
CDB = 03 00 00 00 20 00 00 00 00 00
00 00 00 00 00 00
Stat= 02
Sense Data = 70 00 02 00 00 00 00 1c 00 00
00 00 3a 00 00 00 10 13
0615 12/10/2003 11:25:22 Bus = 0 Target ID = 1
CDB = 1e 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00
Stat= 00
Sense Data = 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
0616 12/10/2003 11:25:22 Bus = 0 Target ID = 1
CDB = 03 00 00 00 20 00 00 00 00 00
00 00 00 00 00 00
Stat= 02
Sense Data = 70 00 02 00 00 00 00 1c 00 00
00 00 3a 00 00 00 10 13
0617 12/10/2003 11:25:22 Bus = 0 Target ID = 1
CDB = 4c 02 40 00 00 00 00 00 00 00
00 00 00 00 00 00
Stat= 00
Sense Data = 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00

DisplayTraceLog [ + | - | = | <ESC>] >>
Ready.

dumpEventLog

CAUTION

The dumpEventLog command dumps the contents of the entire event log of an RS-232 or TCP/IP session
without clearing the event log. No events are recorded until the command has been completed. This
command takes effect immediately.

The following is an example of some verbose output of a dumpEventLog command:

Ready.
dumpeventlog
ADIC SNC Event Log W
0238 12/13/2003 09:43:25 QueueFull. Net #0

60 Management Port Command Reference

Contact ATAC before using this command.

0239 12/13/2003 09:43:25 Rx Packet Error. Net #0
0240 12/13/2003 09:43:25 QueueFull. Net #0
0241 12/13/2003 09:43:25 Rx Packet Error. Net #0
0242 12/13/2003 09:43:25 QueueFull. Net #0
0243 12/13/2003 09:43:25 Rx Packet Error. Net #0
0244 12/13/2003 09:43:25 QueueFull. Net #0
0245 12/13/2003 09:43:25 Rx Packet Error. Net #0
0246 12/13/2003 09:43:25 QueueFull. Net #0
0247 12/13/2003 09:43:25 Rx Packet Error. Net #0
0248 12/13/2003 09:43:25 QueueFull. Net #0
0249 12/13/2003 09:43:25 Rx Packet Error. Net #0
0250 12/13/2003 09:43:25 QueueFull. Net #0
0251 12/13/2003 09:43:25 Rx Packet Error. Net #0
0252 12/13/2003 09:43:25 QueueFull. Net #0
0253 12/13/2003 09:43:25 Rx Packet Error. Net #0
0254 12/13/2003 09:43:25 QueueFull. Net #0
0255 12/13/2003 09:43:25 Rx Packet Error. Net #0
0256 12/13/2003 09:43:25 QueueFull. Net #0
Ready.

dumpTraceLog

CAUTION

The dumpTraceLog command dumps the contents of the entire trace log to an RS-232 or TCP/IP session
without clearing the trace log. No events are recorded until the command has been completed. This
command takes effect immediately.

The following is a truncated example of the verbose output when nothing is recorded in the trace log and a
dumpTraceLog command is entered. Output from your system will be much lengthier:

Ready.
dumptracelog
ADIC SNC Trace Log

0000 12/05/2003 13:01:39 Bus = 0 Target ID = 0
CDB = 12 00 00 00 64 00 00 00 00 00
00 00 00 00 00 00
Stat= 02
Sense Data = 70 00 05 00 00 00 00 18 00 00
00 00 25 00 00 00 00 00
0001 12/05/2003 13:01:39 Bus = 0 Target ID = 1
CDB = 12 00 00 00 64 00 00 00 00 00
00 00 00 00 00 00
Stat= 00
Sense Data = 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
0002 12/05/2003 13:01:39 Bus = 0 Target ID = 1
CDB = 12 00 00 00 64 00 00 00 00 00
00 00 00 00 00 00
Stat= 00
Sense Data = 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
0003 12/05/2003 13:01:39 Bus = 0 Target ID = 1
CDB = 12 01 80 00 64 00 00 00 00 00

Contact ATAC before using this command.

SNC 450x User’s Guide 61

00 00 00 00 00 00
Stat= 00
Sense Data = 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
Ready.

exit

The exit command ends the current TCP/IP CLI session. It has no effect if used during a serial CLI session.
A Telnet session ends after 15 minutes of inactivity. No more than three Telnet sessions can be active at
one time. This command takes effect immediately.

firmwareRestart

The firmwareRestart command causes the SNC to reboot and then re-initialize its firmware. When the
firmware has finished rebooting, the Ready prompt is displayed. This command takes effect immediately.

Uart is Initialized

DRAM Data Line Test Passed
SRAM Data Line Test Passed
BBRAM Data Line Test Passed

DRAM Address Line Test Passed
SRAM Address Line Test Passed
BBRAM Address Line Test Passed

DRAM Pattern Test 1 Passed
DRAM Pattern Test 2 Passed
DRAM Pattern Test 3 Passed
DRAM Pattern Test 4 Passed
SRAM Pattern Test 1 Passed
SRAM Pattern Test 2 Passed
SRAM Pattern Test 3 Passed
SRAM Pattern Test 4 Passed
BBRAM Pattern Test 1 Passed
BBRAM Pattern Test 2 Passed
BBRAM Pattern Test 3 Passed
BBRAM Pattern Test 4 Passed
DRAM Swap Pattern Test1 Passed
DRAM Swap Pattern Test2 Passed
DRAM Swap Pattern Test3 Passed
DRAM Swap Pattern Test4 Passed

***** Memory Tests Complete *****

Memory Clear Finished

EPLD Version 0 Detected
DS1629_DVC_TYPE initialized

ADIC SNC 450x
(c) 2003 ATTO Technology, Incorporated.

62 Management Port Command Reference

Firmware version A61Z release date Feb 4 2004, 14:06:50 Build A61Z

Power-On Self-Test Completion Status: GOOD
128 Megabytes of RAM Installed.

2 GbE Data Port(s).
2 LVD SCSI Interface Port(s).

Bridge World Wide Name = 20 00 00 10 86 50 00 1C
Bridge Serial Number = “IPB2500100136”
Bridge Name = “SNC 450x”

Internal Temperature = 25 C [0 - 70]
For help, type HELP.
Active Configuration = ADIC Config File
Feb 4 2004 14:06:50 A61Z Initialization Complete
Scsi interface 0 Register R/W test Passed
Scsi interface 0 Reset test Passed
Scsi interface 0 FIFO test Passed
Scsi interface 0 Master test Passed
Scsi interface 1 Register R/W test Passed
Scsi interface 1 Reset test Passed
Scsi interface 1 FIFO test Passed
Scsi interface 1 Master test Passed

Initializing Port DP0......................

Initializing Port DP1......................

Initializing Port MP0......................

GBE hardware Init done.
Ready.

get BridgeModel

The get BridgeModel displays model information about a specific SNC.

The following is an example of a verbose output from a get BridgeModel command:

Ready.
get BridgeModel
"SNC 450x"
(c)
Firmware version 055E release date "Oct. 3 2003", 11:30:32 Build 055E
Ready.

There is no set version of this command.

get BridgeName

The get BridgeName command displays the name assigned to the SNC. Refer to set BridgeName on page

83.

Ready.
get bridgename
BridgeName = "SNC 450x"
Ready.

get Date

The get date command displays the current date. Refer to set Date [date] on page 84.

SNC 450x User’s Guide 63

Ready.
get date
Date = 11/11/2003
Ready.

get DisplayEventLogFilter [subsystem] [level]

CAUTION

The get DisplayEventLogFilter command displays the filters enabled for specific SNC subsystems when

Contact ATAC before using this command.

in DisplayEventLog mode. Refer to set DisplayEventLogFilter [subsystem] [level] [status]

on page 84.

Subsystem Choices

GEN ENET NVRAM PERF XCOPY ECC ALL

Where:

GEN = General

ENET = Ethernet

iSCSI = SCSI protocol of TCP/IP

NVRAM = Non-Volatile Random Access Memory

PERF = Performance

ECC = Error Correcting/Correction Code

ALL = All of the above

Log Level Choices

INFO WARN CRIT FAIL ALL

Where:

INFO = Information

WARN = Warnings

CRIT = Critical events

FAIL = Failures

ALL = All of the above

The following is the verbose output from a get DisplayEventLogFilter all all command:

get displayeventlogfilter all all
25
;Subsystem Level Filter Status
ENET INFO disabled
ENET WARN disabled

64 Management Port Command Reference

ENET CRIT disabled
ENET FAIL disabled
XCOPY INFO disabled
XCOPY WARN disabled
XCOPY CRIT disabled
XCOPY FAIL disabled
NVRAM INFO disabled
NVRAM WARN disabled
NVRAM CRIT disabled
NVRAM FAIL disabled
ECC INFO disabled
ECC WARN disabled
ECC CRIT disabled
ECC FAIL disabled
PERF INFO disabled
PERF WARN disabled
PERF CRIT disabled
PERF FAIL disabled
GEN INFO disabled
GEN WARN disabled
GEN CRIT disabled
GEN FAIL disabled

Ready.

get DisplayTraceLogFilter [SCSI | all] [port number]

CAUTION

The get DisplayTraceLogFilter command displays trace log data for specific SNC ports when in
DisplayTraceLog mode. Refer to set DisplayTraceLogFilter [SCSI | all] [port number] [status]
This command takes effect immediately.

Port Number Meaning

0 or 1 SCSI connection labeled SCSI port 0 or SCSI port 1

all All SCSI connections

The following is an example of the verbose output of a get displaytracelogfilter all command:

Ready.
get displaytracelogfilter all all

3

;Port Type Port Number Filter Status

SCSI 0 disabled
SCSI 1 disabled

Ready.

Contact ATAC before using this command.

on page 85.

get DPMTU [port number]

CAUTION

SNC 450x User’s Guide 65

Contact ATAC before using this command.

The get DPMTU command shows the MTU (Maximum Transmission Unit) used by SNC data ports. Refer
to iSCSI Performance Tuning

Port Number Meaning

dp0 or dp1 Ethernet connection labeled Ethernet port 0 or Ethernet port 1

all All Ethernet connections

The following is a verbose output for the command get DPMTU all:

Ready.
get dpmtu all
4
; Port MTU
;==========================

DP0 9014
DP1 9014

Ready.

on page 107 and set DPMTU [port number] [MTU choices] on page 86.

Note

Increasing the MTU can improve performance. To fully understand the
implications and network requirements, contact your service representative
before modifying this value.

get EthernetSpeed [port number]

The get EthernetSpeed command displays the speed of the SNC Ethernet ports. Refer to iSCSI

Performance Tuning on page 107 and set EthernetSpeed [port number] [speed] on page 86.

Port Number Meaning

mp0 Ethernet management port labeled Ethernet port 2

dp0 or dp1 Ethernet data port labeled Ethernet port 0 or Ethernet port 1

all All Ethernet connections

Ready.
get ethernetspeed mp0
EthernetSpeed = auto (100)
Ready.

get EventLog

CAUTION

The get EventLog command displays whether or not EventLog has been enabled. Refer to set EventLog

[status] on page 87.

Ready.
get eventlog
EventLog = enabled
Ready.

66 Management Port Command Reference

Contact ATAC before using this command.

get EventLog Filter [subsystem]

CAUTION

The get EventLogFilter command displays the data for specific SNC subsystems. Refer to set

EventLogFilter [subsystem] [event level] [status] on page 87.

Subsystem Choices

GEN ENET ISCSI NVRAM PERF ECC ALL

Where:

GEN = General

ENET = Ethernet

ISCSI = SCSI protocol of TCP/IP

NVRAM = Non-Volatile Random Access Memory

PERF = Performance

ECC = Error Correcting/Correction Code

ALL = All of the above

Contact ATAC before using this command.

get IdentifyBridge

The get IdentifyBridge command displays whether or not set IdentifyBridge is enabled. Refer to set

IdentifyBridge [status] on page 88.

Ready.
get IdentifyBridge
IdentifyBridge = disabled
Ready.

get IPAddress [port number]

The get IPAddress command reports the current IP address, whether it is the default setting, or whether it
was assigned manually or by DHCP. Refer to get IPDHCP [port number]

[port number] [IP address] on page 88.

Port Number Meaning

mp0 Ethernet management port labeled Ethernet port 2

dp0 or dp1 Ethernet data port labeled Ethernet port 0 or Ethernet port 1

all All Ethernet port connections

The following is an example of the verbose output for a get ipaddress all command:

on page 68 and set IPAddress

Ready.
get ipaddress all
5

SNC 450x User’s Guide 67

; Port Address
;=================================

DP0 172.16.5.50
DP1 172.16.5.51
MP0 172.16.5.198

Ready.

get IPDHCP [port number]

The get IPDHCP shows if DHCP has been enabled or disabled for any or all SNC Ethernet ports. Refer to

set IPDHCP [port number] [status]

Port Number Meaning

mp0 Ethernet management port labeled Ethernet port 2

dp0 or dp1 Ethernet data port labeled Ethernet port 0 or Ethernet port 1

all All Ethernet port connections

The following is an example of the verbose output of a get IPDHCP all command:

Ready.
get ipdhcp all
5
; Port DHCP
;==========================

DP0 disabled
DP1 disabled
MP0 disabled

Ready.

on page 89. DHCP is disabled by default.

get IPGateway [port number]

The get IPGateway command reports the current IP gateway, whether it is the default setting, or whether
it was assigned manually or by DHCP. Refer to set IPGateway [port number ] [IP address]

Port Number Meaning

mp0 Ethernet management port labeled Ethernet port 2

dp0 or dp1 Ethernet data port labeled Ethernet port 0 or Ethernet port 1

all All Ethernet port connections

The following is an example of the verbose output of a get IPGateway all command.

Ready.
get ipgateway all
5
; Port Gateway
;=================================

DP0 172.16.1.44
DP1 172.16.1.44
MP0 172.16.1.44

Ready.

on page 89.

68 Management Port Command Reference

get IPSubnetMask [port number]

The get IPSubnetMask command reports the current subnet mask, whether it is the default setting, or
whether it was assigned manually or by DHCP. Refer to get IPSubnetMask [port number]

set IPSubnetMask [port number ] [IP address]

Port Number Meaning

mp0 Ethernet management port labeled Ethernet port 2

dp0 or dp1 Ethernet data port labeled Ethernet port 0 or Ethernet port 1

all All Ethernet port connections

The following is an example of the verbose output of a get IPSubnetMask all command:

Ready.
get ipsubnetmask all
5
; Port SubnetMask
;=================================

DP0 255.255.0.0
DP1 255.255.0.0
MP0 255.255.0.0

Ready.

on page 90.

on page 69 and

get iSCSIAlias

The get iSCSIAlias command displays the name assigned to the SNC. Refer to set iSCSIAlias [alias] on
page 90.

Ready.
get iscsialias
iSCSIAlias = ““
Ready.

get iSCSIChap

CAUTION

The get iSCSIChap shows if the CHAP has been enabled or disabled. Refer to set iSCSIChap [status] on
page 90.

Output Meaning

enabled The SNC tries to negotiate CHAP (Challenge-Handshake Authentication

Protocol) authentication using the CHAP secret (password)

disabled The SNC does not try to negotiate CHAP authentication

Contact ATAC before using this command.

Ready.
get iscsichap
iSCSIchap = disabled
Ready.

SNC 450x User’s Guide 69

get iSCSIChapSecret [password type | delete] [account name]

The get iSCSIChapSecret command displays the incoming and outgoing secrets (passwords) for iSCSI
CHAP sessions. Refer to set iSCSIChapSecret [password type|delete] [account name] <secret>

90.

Password Type Meaning

in Defines the incoming secret (password) for iSCSI CHAP sessions

out Defines the outgoing secret (password) for iSCSI CHAP sessions

delete Removes a secret (password) from an account (username) list

Account Name Meaning

account name The username of the iSCSI initiator or other name to identify the secret

(password), up to 223 characters

all All account names

Ready.
get iscsichapsecret dev1 in all
2
Initiator Name | Secret
========================================================================
TEST abcdefghijklmn02
TEST abcdefghijklmn03

on page

Ready.

get iSCSIPortNumber

The get iSCSIPortNumber command displays the SNC port number that iSCSI connections use. Refer to

set iSCSIPortNumber [port number]

Ready.
get iscsiportnumber
iSCSIPortNumber = 3260
Ready.

on page 91.

get iSNSLoginControl

CAUTION

The get iSNSLoginControl command specifies whether or not logins are controlled by an iSNS server.
Refer to set iSNSLoginControl [status]

Ready.
get isnslogincontrol
iSNSLoginControl = disabled
Ready.

Contact ATAC before using this command.

on page 92.

70 Management Port Command Reference

get iSNSServer

CAUTION

The get iSNSServer specifies the IP address of a valid iSNS server the SNC uses to discover iSCSI
initiators. Refer to set iSNSServer [IP address]

Ready.
get isnsserver
iSNSServer = 0.0.0.0
Ready.

Contact ATAC before using this command.

on page 92.

get MaxOpTemp

CAUTION

The get MaxOpTemp command displays the maximum internal operating temperature of the SNC in
degrees Celsius. Valid values are from 55 to 70. Refer to set MaxOpTemp [temperature]

Ready.
get maxoptemp
MaxOpTemp = 70 C
Ready.

Contact ATAC before using this command.

.

get MinOpTemp

CAUTION

The get MinOpTemp command sets the minimum internal operating temperature of the SNC in degrees
Celsius. Valid values are from 0 to 15. The default setting is "0." Refer to set MinOpTemp [temperature]

Ready.
get minoptemp
MinOpTemp = 0 C
Ready.

Contact ATAC before using this command.

.

get OpTempWarn

CAUTION

The get OpTempWarn command displays the number of degrees Celsius before a thermal control event
warns you if the SNC is approaching the minimum or maximum internal operating temperature. The warning
is sent to the system log. Valid values are from 0 to 15. Refer to set OpTempWarn [temperature]

Ready.
get optempwarn
OpTempWarn = 5 C
Ready.

Contact ATAC before using this command.

.

SNC 450x User’s Guide 71

get ScsiInitID [port number] [ID choices]

CAUTION

The get SCSIInitID command displays the SCSI initiator ID to be used for a specific port. You must put in
a placeholder value for the initiator value used on that port, [0-15], even though the output could differ from
the number you enter. The number reported in the output is correct for your configuration. A
saveConfiguration restart command must be used to permanently save this configuration. Refer to set

SCSIInitID [port number] [ID choices] on page 94.

Port Number Meaning

0 or 1 SCSI connection labeled SCSI port 0 or SCSI port 1

SCSI Initiator ID Choices and Possible Outputs

123456789101112131415

You must enter the port number and the initiator ID as shown in the following examples.

Ready.
get scsiinitid 1
ERROR. Wrong/Missing Parameters
Usage:
get/set ScsiInitId [sb] [0-15]
get scsiinitid 1 9
Port 1 ScsiInitId = 7
Ready.
get scsiinitid 1 7
Port 1 ScsiInitId = 7
Ready.

Contact ATAC before using this command.

get SCSIPortBusSpeed [port number]

CAUTION

The get SCSIPortBusSpeed command displays the current SCSI port bus speed. If a port number is
specified, the command displays only that port number’s bus speed. Refer to set SCSIPortBusSpeed [port

number] [speed] on page 94.

Port Number Meaning

0 or 1 SCSI connection labeled SCSI port 0 or SCSI port 1

Possible SCSI Bus Speed outputs

fast ultra ultra2 ultra3

Ready.
get scsiportbusspeed 0
Port 0 ScsiPortBusSpeed = ultra3

72 Management Port Command Reference

Contact ATAC before using this command.

Ready.

get SCSIPortResetOnStartup [port number]

CAUTION

The get SCSIPortResetOnStartup command displays the current status of the SCSI port reset on startup
parameter for a specific port. The default setting is “enabled." Refer to set SCSIPortResetOnStartup [port

number] [status] on page 95.

Port Number Meaning

0 or 1 SCSI connection labeled SCSI port 0 or SCSI port 1

Ready.
get scsiportresetonstartup 0
Port 0 ScsiPortResetOnStartup = enabled
Ready.

Contact ATAC before using this command.

get SCSIPortSyncTransfer [port number]

CAUTION

The get SCSIPortSyncTransfer command shows whether or not synchronous SCSI transfers have been
enabled for a specific port. Refer to set SCSIPortSyncTransfer [port number ] [status]
command must be followed by saveConfiguration restart.

Contact ATAC before using this command.

on page 95. This

Port Number Meaning

0 or 1 SCSI connection labeled SCSI port 0 or SCSI port 1

Ready.
get scsiportsynctransfer 0
Port 0 ScsiPortSyncTransfer = enabled
Ready.

get SCSIPortTermination [port number]

CAUTION

The get SCSIPortTermination command displays the SCSI internal termination for a specific port. Refer
to set SCSIPortTermination [port number] [status]
saveConfiguration restart.

Ready.
get scsiporttermination 0
Port 0 ScsiPortTermination = enabled
Ready.

Contact ATAC before using this command.

on page 95. This command must be followed by

SNC 450x User’s Guide 73

get SCSIPortWideTransfer [port number]

CAUTION

The get SCSIPortWideTransfer command specifies if wide SCSI transfers are negotiated for a specific
port. Refer to set SCSIPortWideTransfer [port number] [status]
by saveConfiguration restart.

Port Number Meaning

0 or 1 SCSI connection labeled SCSI port 0 or SCSI port 1

Ready.
get scsiportwidetransfer 0
Port 0 ScsiPortWideTransfer = enabled
Ready.

Contact ATAC before using this command.

on page 96.This command must be followed

get SerialPortBaudRate

The get SerialPortBaudRate command displays the baud rate for the RS-232 serial port. Refer to set

SerialPortBaudRate [rate] on page 96.

Baud Rate Output

2400 9600 19200 38400 57600 115200

Ready.
get serialportbaudrate
SerialPortBaudRate = 115200
Ready.

get SerialPortEcho

The get SerialPortEcho command shows whether or not repetition of keyboard input on the screen has
been enabled. Refer to set SerialPortEcho [status]

Ready.
get serialportecho
SerialPortEcho = disabled
Ready.

on page 97.

get SNTP

The get SNTP commands reports if the SNC is set to contact a specified Network Time Protocol (NTP)
server. Refer to set SNTPServer [IP address]

Ready.
get sntp
SNTP = disabled
Ready.

on page 97.

get SNTPServer

The get SNTPServer command displays the current NTP time server address. Refer to set SNTPServer

[IP address] on page 97.

74 Management Port Command Reference

Ready.
get SNTPserver
5
;SNTP Server IP Addresses
;========================

192.43.244.18

129.6.15.28 AUX

132.163.4.101 AUX
Ready.

get SpeedWrite SCSI [bus target LUN]

CAUTION

The get SpeedWrite [sb st sl | all] command shows whether or not SpeedWrite has been enabled for a
specific SCSI bus (sb), target (st), and LUN (sl) or for all currently mapped SCSI devices on the SNC. For

Contact ATAC before using this command.

an explanation of the SpeedWrite capability, refer to set SpeedWrite SCSI [sb st sl | all] [status]

on page 98.

Parameter Meaning

sb SCSI bus

st SCSI target

sl SCSI LUN

all all currently-mapped devices

Output Meaning

enabled Provides enhanced performance of WRITE commands

disabled Retains the current level of performance of WRITE commands

Ready.
get speedwrite scsi all
9
;sb st sl speedWrite State
0 1 0 disabled
0 2 0 disabled
0 3 0 disabled
0 4 0 disabled
1 0 0 disabled
1 1 0 disabled
1 2 0 disabled
1 3 0 disabled
Ready.

get SpeedWriteDefault

CAUTION

SNC 450x User’s Guide 75

Contact ATAC before using this command.

The get SpeedWriteDefault command shows if SpeedWrite performance has been enabled or disabled for
newly-mapped SCSI devices. For an explanation of the SpeedWrite capability, refer to set SpeedWrite SCSI

[sb st sl | all] [status] on page 98.

Output Meaning

enabled Provides enhanced performance of WRITE commands for newly-mapped

SCSI devices

disabled Retains the current level of performance of WRITE commands

Ready.
get speedwritedefault
SpeedWriteDefault = disabled
Ready.

get Temperature

The get Temperature command displays the current internal temperature of the SNC in degrees Celsius.
There is no set version of this command.

Ready.
get temperature
Temperature = 32 C
Ready.

get Time

The get time command displays the current time. Refer to set Time [time] on page 99.

Ready.
get time
Time = 14:47:17
Ready.

get TimeZone

The get TimeZone command displays the current time zone. The “+” and “-” represent a numerical offset
from GMT (Greenwich Mean Time). Refer to set TimeZone [zone] [+/-:hh:mm]

Ready.
get timezone
TimeZone = EST
Ready.

on page 100.

get TraceLog

CAUTION

Contact ATAC before using this command.

The get TraceLog command shows whether or not trace log recording has been enabled. Refer to set

TraceLog [status] on page 100.

Output Meaning

enabled SCSI traffic is recorded to the Trace Log

76 Management Port Command Reference

Output Meaning

disabled No SCSI traffic is recorded to the Trace Log

Ready.
get tracelog
TraceLog = disabled
Ready.

get TraceLogFilter [SCSI | all] [port number]

CAUTION

The get TraceLogFilter command displays the information in the trace log for specific SNC ports if the set
TraceLog command has been enabled. Refer to set TraceLogFilter [SCSI | all] [port number] [status]

page 100.

Port Number Meaning

0 or 1 SCSI connection labeled SCSI port 0 or SCSI port 1

all All SCSI port connections

The following is an example:

Ready.
get tracelogfilter scsi all

3

;Port Type Port Number Filter Status

SCSI 0 disabled
SCSI 1 disabled

Ready.

Contact ATAC before using this command.

on

get Username [username]

The get Username command displays the username for all Telnet, FTP, and SNC Manager web server
sessions. Refer to set Username [username]

Ready.
get username
UserName = "admin"
Ready.

get VerboseMode

The get VerboseMode command displays whether or not verbose mode has been enabled. Refer to the

set VerboseMode [status]

Ready.
get verbosemode
VerboseMode = enabled
Ready.

SNC 450x User’s Guide 77

on page 101.

command.

get Voltage

The get Voltage command displays the current level of voltages monitored by the SNC. There is no set
version of this command.

Ready.
get voltage
5
;Voltage Level
;======================

Voltage (VCC) = 4.95 V
Voltage (VDDA) = 3.31 V
Voltage (VDDB) = 2.48 V

Ready.

get WrapEventLog

CAUTION

The get WrapEventLog command displays whether or not WrapEventLog is enabled. Refer to set

WrapEventLog [status] on page 101.

Ready.
get wrapeventlog
WrapEventLog = enabled
Ready.

Contact ATAC before using this command.

get WrapTraceLog

CAUTION

The get WrapTraceLog shows whether or not WrapTraceLog is enabled. Refer to set WrapTraceLog

[status] on page 102.

Ready.
get wraptracelog
WrapTraceLog = enabled.
Ready.

Contact ATAC before using this command.

help [command name]

The Help command displays a list of available commands. If you specify a command, a detailed command­specific explanation is displayed. If you do not specify a command name, a list of all available commands
is displayed. This command takes effect immediately.

Command Name

The name of the command for which you need help

78 Management Port Command Reference

info

The info command displays version numbers and other product information for key components within the
SNC.

Ready.
info
Device = "SNC 4500"
Serial Number = IPB2500100000
Device Version = 055E
Device Build = 055E
Build Date = "Oct 3 2003" 11:30:32
Flash Revision = 11
CLI Revision = 1.10
Bridge Name ="Alpha"
World Wide Name = 20 00 00 10 86 10 48 68
Ready.

isReserved

The isReserved command displays the reservation status of the current SNC session. If the response is

Reserve Flag set, the configuration image is being modified by another CLI session. The set
commands are temporarily unavailable but get commands are available. Executing a saveConfiguration,
restoreConfiguration or firmwareRestart releases the SNC so that other users can access it. At least one
interface must always have access to the SNC. This command takes effect immediately.

Output Meaning

Reserve Flag NOT set The configuration image is not being modified by another CLI session

Reserve Flag set The configuration image is being modified by another CLI session. The set

commands can not be issued to the SNC

Ready.
isreserved
Reserve Flag "NOT set"
Ready.

ping [port number] [IP address] <count> <size>

CAUTION

The ping [mp0|dp] [xxx.xxx.xxx.xxx]<count> <size> command sends an ICMP echo request from the
specified SNC management or data ports to the specified IP address. This command takes effect
immediately.

If the host and SNC are on different subnets, ping may return
"Destination Net Unreachable." Check with your network
administrator to determine if pings across subnets have been
disabled for security reasons. If so, you will need to perform the ping
from a host on the same subnet as the SNC or rely on the host's iSCSI
initiator to enumerate the SNC data ports.

Port Number Meaning

mp0 Ethernet management port labeled Ethernet port 2

dp0 or dp1 Ethernet data port labeled Ethernet port 0 or Ethernet port 1

SNC 450x User’s Guide 79

IP Address Meaning

xxx.xxx.xxx.xxx The IP address you wish to ping

Optional Parameters Meaning

count Specifies the number of echo requests sent

size Specifies the length, in bytes, of the data sent

Ready.
ping mp0 172.16.5.198
PING: size=64; num=4; net=MP0; addr=c60510ac
1 no reply
2 no reply
3 no reply
4 no reply
Ready.

ping mp0 172.16.76.198

PING: size=64; num=4; net=MP0; addr=c64c10ac

Reply from 172.16.76.198: [ 1] bytes=64 time=0 ms
Reply from 172.16.76.198: [ 2] bytes=64 time=0 ms
Reply from 172.16.76.198: [ 3] bytes=64 time=0 ms
Reply from 172.16.76.198: [ 4] bytes=64 time=0 ms

Ready.

reserve

Reservation of the SNC is implicit. Once the configuration image is changed by any user, the SNC becomes
reserved. Executing a saveConfiguration, a restoreConfiguration, or a firmwareRestart command
releases the SNC so that other users can access it. When the SNC is reserved, set commands from other
users are not executed but get commands will be executed. At least one interface must always have access
to the SNC. This command takes effect immediately.

Output Meaning

enabled Allows reservation of the SNC

disabled Does not allow reservation of the SNC

Ready.
reserve
Reserve Successful
Ready.

restoreConfiguration [status]

The restoreConfiguration [default|saved] command changes the configuration to either the default
configuration or the configuration last saved into non-volatile memory. If you use “saved,” any changes
made since the last save are lost. Refer to saveConfiguration <status>
followed by a power cycle.

on page 82. This command must be

80 Management Port Command Reference

Status Meaning

Default Factory-set default configuration

Saved Last saved configuration

The following example shows the response to restoreConfiguration default:

Ready.
restoreconfiguration default
Ready.

route iSCSI [lun] [SCSI | delete] <SCSI btl>

The Route iSCSI command assigns an iSCSI LUN protocol address to a target destination device. More
than one iSCSI LUN can be assigned to a SCSI BTL (bus, target, LUN). If you try to map a new SCSI BTL
to the same iSCSI LUN, the new BTL overwrites the previous map. This command takes effect immediately.

SCSI btl Meaning

bbus

ttarget

lLUN

The following verbose output shows the results of a RouteDisplay iSCSI command, followed by a Route

iSCSI command setting the SCSI LUN 9 to the SCSI bus 0, target 9 and LUN 0, followed by another
RouteDisplay iSCSI command to show the change in mapping:

Note

routedisplay iscsi
11
;Lun SB ST SL
;===================
0 Bridge
1 0 0 0
2 0 1 0
3 0 2 0
4 0 3 0
5 1 0 0
6 1 1 0
7 1 2 0
8 1 3 0
Ready.

route iscsi 9 scsi 0 9 0
Ready.

Devices mapped by the SNC will be visible across both data ports.

routedisplay iscsi
12
;Lun SB ST SL
;===================

SNC 450x User’s Guide 81

0 Bridge
1 0 0 0
2 0 1 0
3 0 2 0
4 0 3 0
5 1 0 0
6 1 1 0
7 1 2 0
8 1 3 0
9 0 9 0
Ready.

routeDisplay iSCSI <lun>

The routeDisplay iSCSI command displays a list of iSCSI names to SCSI bus, target, and LUN mappings.
The optional LUN parameter limits the list to the map of that LUN.

Ready.
routeDisplay iscsi
8
;Lun SB ST SL
;===================
0 Bridge
1 0 0 0
2 0 1 0
3 0 2 0
4 1 4 0
8 1 3 0
Ready.

saveConfiguration <status>

Many commands require a saveConfiguration command to be executed. This is indicated by the output
Ready. *. When you issue the saveConfiguration command, the current configuration is permanently

saved in the SNC and the new configuration becomes the active configuration.

Some commands require a firmware restart to make the requested change permanent. The SNC cannot
automatically determine whether or not to restart. After you issue the saveConfiguration restart command,
a prompt asks you to confirm the restart. You can override this request by typing n on the command line. If
you select the restart option, the SNC executes its complete start up cycle.

You can make several changes through commands and saveConfiguration before implementing the
restart, but once you have restarted the SNC, all the command changes created before the restart and save
are implemented.

Refer to restoreConfiguration [status]

Status Meaning

Restart SNC executes its complete start up cycle

NoRestart SNC saves the configuration without restarting

The following example shows the response to a saveConfiguration without specifying restart or

norestart:

on page 80.

Ready.
saveConfiguration
[Configuration saved

82 Management Port Command Reference

Restart is necessary...
Do you wish to restart (y/n)? y
Restarting...]
Ready.

SCSIPortList

The SCSIPortList command outputs available SCSI ports and their current status. Valid status values are
“O.K.” and “failed." This command takes effect immediately.

Ready.
scsiportlist
4
;SCSI Port Port Status
;========================

0 O.K.
1 O.K.

Ready.

SCSIPortReset [port number]

The SCSIPortReset command resets the specified SCSI bus. This command takes effect immediately.

Port Number Meaning

0 or 1 SCSI connection labeled SCSI port 0 or SCSI port 1

Ready.
scsiportreset 0
Resetting Port Number 0
Ready.

SCSITargets [port number]

The SCSITargets command displays a list of SCSI devices operational on the referenced SCSI port. This
command takes effect immediately.

Port Number Meaning

0 or 1 SCSI connection labeled SCSI port 0 or SCSI port 1

The following shows the information which is presented after a SsciTargets 0 command:

Ready.
scsitargets 0
1
; sb st sl Device Type Vendor ID Product ID Rev. Serial Number
Ready.

set BridgeName

The set BridgeName command assigns a name to the SNC to identify a particular SNC. A
saveConfiguration restart command must be used to permanently save this configuration.

Note

SNC 450x User’s Guide 83

The set BridgeName command does not set the network name. It sets an
internal name for your SNC 450x.

Ready.
set bridgename Alpha
Ready.*

set Date [date]

The set Date [mm|dd|yyyy] command sets the date for the SNC if NTP has been disabled. Refer to set

SNTP [status] on page 97 and get Date on page 63. This command takes effect immediately.

Date format Meaning

mm Two-digit designation of desired month

dd Two-digit designation of desired day

yyyy Four-digit designation of desired year

The following example sets the date to 3/25/2004:

Ready.
set date 03/25/2004
Ready.

set DisplayEventLogFilter [subsystem] [level] [status]

CAUTION

The set DisplayEventLogFilter command controls what information is displayed for specific SNC
subsystems when issuing the DisplayEventLog command. The filter blocks information for one or all of the
SCSI buses and Ethernet ports. The default setting is ”disabled” for all subsystems and levels. Refer to get

DisplayEventLogFilter [subsystem] [level] on page 64. This command takes effect immediately.

Subsystem Choices

GEN ENET NVRAM PERF XCOPY ECC ALL

Where:

GEN = General

ENET = Ethernet

ISCSI = SCSI protocol of TCP/IP

NVRAM = Non-Volatile Random Access Memory

PERF = Performance

ECC = Error Correcting/Correction Code

Contact ATAC before using this command.

ALL = All of the above

84 Management Port Command Reference

Log Level Choices

INFO WARN CRIT FAIL ALL

Where:

INFO = Information

WARN = Warnings

CRIT = Critical events

FAIL = Failures

ALL = All of the above

Status Meaning

enabled The subsystem and log level chosen are masked when in DisplayEventLog

mode

disabled The subsystem and log level chosen are shown when in DisplayEventLog

mode

Ready.
set displayeventlogfilter scsi warn enabled
Ready.

set DisplayTraceLogFilter [SCSI | all] [port number] [status]

CAUTION

The set DisplayTraceLogFilter command controls the display of data for specific SNC ports when the
command DisplayTraceLog is enabled. If enabled for a particular SNC port, that port is masked when the
command DisplayTraceLog is issued. The default setting is “disabled” for all ports. Refer to get

DisplayTraceLogFilter [SCSI | all] [port number] on page 65. This command takes effect immediately.

Port Number Meaning

0 or 1 SCSI connection labeled SCSI port 0 or SCSI port 1

all All SCSI port connections

Status Meaning

enabled The chosen port is masked when in DisplayEventLog mode

disabled The chosen port is shown when in DisplayEventLog mode

Ready.
set displaytracelogfilter scsi 0 enabled
Ready.

Contact ATAC before using this command.

SNC 450x User’s Guide 85

set DPMTU [port number] [MTU choices]

CAUTION

implications and network requirements, contact your service
representative before modifying this value.

The set DPMTU command controls the MTU (Maximum Transmission Unit) used by the SNC data ports.
Increasing the MTU on the SNC can improve throughput on the SNC data ports. The host MTU must be
changed to match the SNC value in accordance with manufacturer’s instructions. This command must be
followed by saveConfiguration restart.

The MTU for the management port cannot be changed. The default setting is ”1514.” A saveConfiguration

restart command must be used to permanently save this configuration. Refer to iSCSI Performance Tuning

Increasing the MTU can improve performance. To fully understand the

on page 107 and get DPMTU [port number]

on page 65.

Port Number Meaning

dp0 or dp1 Ethernet connection labeled Ethernet port 0 or Ethernet port 1

all All Ethernet data ports

MTU Choices

1514 9014 16128

The following example sets the Ethernet data port 0 to MTU 1514.

Ready.
set DPMTU dp0 1514
Ready.*

set EthernetSpeed [port number] [speed]

CAUTION

The set EthernetSpeed command controls the speed of the SNC Ethernet ports.

Refer to iSCSI Performance Tuning
set, 10 and 100 speeds are half duplex. The default setting is “auto." A saveConfiguration restart
command must be used to permanently save this configuration. Refer to get EthernetSpeed [port number]
on page 66.

Port Number Meaning

mp0 Ethernet management port labeled Ethernet port 2

dp0 or dp1 Ethernet data port labeled Ethernet port 0 or Ethernet port 1

Contact ATAC before using this command.

on page 107. If auto is enabled, the speed is negotiated. When hard

all All Ethernet port connections

86 Management Port Command Reference

Ethernet Speed Choices

10 100 1000 auto

Ready.
set ethernetspeed dp0 auto
Ready. *

set EventLog [status]

CAUTION

The set EventLog command, when enabled, records various system events to the event log. The default

Contact ATAC before using this command.

setting is “enabled." Refer to get EventLog

on page 66. This command must be followed by

saveConfiguration norestart.

Status Meaning

enabled The Event Log records events

disabled The Event Log is not created

Ready.
set eventlog disabled
Ready.*

set EventLogFilter [subsystem] [event level] [status]

CAUTION

The set EventLogFilter command filters the data for specific SNC subsystems. If enabled for a particular
subsystem and level, that subsystem and level is masked while events are being logged. The default setting
is “disabled” for all subsystems and levels. Refer to get EventLog Filter [subsystem]
command must be followed by saveConfiguration restart.

Contact ATAC before using this command.

on page 67. This

Subsystem Choices

GEN ENET ISCSI NVRAM PERF ECC ALL

Where:

GEN = General

ENET = Ethernet

ISCSI = SCSI protocol of TCP/IP

NVRAM = Non-Volatile Random Access Memory

PERF = Performance

SNC 450x User’s Guide 87

ECC = Error Correcting/Correction Code

ALL = All of the above

Log Level Choices

INFO WARN CRIT FAIL ALL

Where:

INFO = Information

WARN = Warnings

CRIT = Critical events

FAIL = Failures

ALL = All of the above

Status Meaning

enabled The subsystem and log level chosen are masked during event logging

disabled The subsystem and log level chosen are shown during event logging

set IdentifyBridge [status]

Enabling the set IdentifyBridge command causes the Fault LED on the front panel of the SNC to blink
until the parameter is disabled. If a fault condition makes the fault LED blink and you wish to turn it off, use
set IdentifyBridge disabled. The default setting is “disabled." Refer to get IdentifyBridge
command takes effect immediately.

Status Meaning

enabled Causes the fault LED on the front panel of the SNC to blink

disabled Stops the fault LED on the front panel of the SNC from blinking

Ready.
set identifybridge enabled
Ready.*

on page 67. This

set IPAddress [port number] [IP address]

The set IPAddress command designates the IP address of the SNC Ethernet ports if IPDHCP has not been
enabled and where xxx.xxx.xxx.xxx equals the IP address. A saveConfiguration restart command must
be used to permanently save this configuration. Refer to get IPAddress [port number]
disabled by default. This command must be followed by saveConfiguration restart.

on page 67. DHCP is

Port Number Meaning Default value

dp0 Ethernet data port labeled Ethernet port 0 10.0.0.1

dp1 Ethernet data port labeled Ethernet port 1 10.0.0.2

88 Management Port Command Reference

Port Number Meaning Default value

mp0 Ethernet management port labeled Ethernet port 2 10.0.0.3

Ready.
set ipaddress DP0 172.16.5.198
Ready.*

set IPDHCP [port number] [status]

When enabled, set IPDHCP allows the SNC to acquire its IP address from a network DHCP (Dynamic Host
Configuration Protocol) server. The network must have at least one DHCP server. When disabled, the SNC
uses the default IP address unless changed through the CLI. A saveConfiguration restart command must
be used to permanently save this configuration. Refer to get IPAddress [port number]

IPDHCP [port number] on page 68. DHCP is disabled by default. This command must be followed by

saveConfiguration restart.

Port Number Meaning

mp0 Ethernet management port labeled Ethernet port 2

dp0 or dp1 Ethernet data port labeled Ethernet port 0 or Ethernet port 1

all All Ethernet port connections

on page 67 and get

Status Meaning

enabled Port acquires IP address from network DHCP server

disabled Port uses default IP address unless changed through CLI

Ready.
set ipdhcp all enabled.
Ready.*

set IPGateway [port number] [IP address]

The set IPGateway command controls the current gateway for the SNC Ethernet ports where

xxx.xxx.xxx.xxx is the IP gateway address and if IPDHCP has not been enabled. The default setting is
“0.0.0.0." Refer to get IPGateway [port number]

saveConfiguration restart.

Port Number Meaning

mp0 Ethernet management port labeled Ethernet port 2

dp0 or dp1 Ethernet data port labeled Ethernet port 0 or Ethernet port 1

all All Ethernet port connections

Ready.
set ipgateway all 0.0.0.0
Ready.*

on page 68. This command must be followed by

SNC 450x User’s Guide 89

set IPSubnetMask [port number] [IP address]

The IPSubnetMask command controls the current subnet mask if DHCP is not enabled where the string
xxx.xxx.xxx.xxx is the subnet mask. The default setting is “255.255.0.0." Refer to get IPSubnetMask [port

number] on page 69. This command must be followed by saveConfiguration restart.

Port Number Meaning

mp0 Ethernet management port labeled Ethernet port 2

dp0 or dp1 Ethernet data port labeled Ethernet port 0 or Ethernet port 1

all All Ethernet port connections

Ready.
set ipsubnetmask all 255.255.0.0
Ready.*

set iSCSIAlias [alias]

The set iSCSIAlias command provides a human-readable name for the SNC when using CHAP
(Challenge-Handshake Authentication Protocol) in the iSCSI protocol. Aliases are up to 64 characters long
and can contain spaces if spaces are enclosed in quotation marks. If you enter the command with no alias
parameter, the alias is removed. The default setting is “ADIC SNC 450x." Refer to get iSCSIAlias

69. This command must be followed by saveConfiguration norestart.

on page

Ready.
set iscsialias dev1 "ADIC SNC 4501"
Ready.*

set iSCSIChap [status]

CAUTION

The set iSCSIChap enables or disables the CHAP (Challenge-Handshake Authentication Protocol) used
for iSCSI protocol. If enabled, the SNC tries to negotiate CHAP authentication using the CHAP secret. Refer
to the command iSCSIChapSecret below. An initiator can reject this negotiation. The default setting is
“disabled." Refer to get iSCSIChap

norestart.

Status Meaning

enabled The SNC tries to negotiate CHAP authentication.

disabled The SNC does not try to negotiate CHAP authentication.

Ready.
set iscsichap dev1 enabled
Ready.*

Contact ATAC before using this command.

on page 69. This command must be followed by saveConfiguration

set iSCSIChapSecret [password type|delete] [account name] <secret>

The set iSCSIChapSecret command specifies the incoming and outgoing passwords, called secrets, for
iSCSI CHAP sessions. The restoreConfiguration default command sets the secrets to default values.

90 Management Port Command Reference

Secrets are case sensitive, 12-32 characters, or 16-32 characters for Microsoft iSCSI initiators, and cannot
contain spaces. Incoming and outgoing secrets must be different.

An incoming CHAP secret authenticates the iSCSI initiator to the SNC. The SNC can store up to 32
incoming secrets, each with a unique account name, equivalent to a username, and secret (password) pair.
The account name is case sensitive and can be 1 to 223 characters.

An outgoing CHAP secret is unique and authenticates the SNC to the rest of the network. The account name
is ignored and defaults to root.

Refer to get iSCSIChapSecret [password type | delete] [account name]

on page 70. This command must be

followed by saveConfiguration norestart.

Password Type Meaning

in Defines the incoming secret (password) for iSCSI CHAP sessions

out Defines the outgoing secret (password) for iSCSI CHAP sessions

delete Removes a secret (password) from an account (username) list

Account Name Meaning

account name The username of the iSCSI initiator or other name to identify the secret

(password), up to 223 characters

all All account names

Secret

Secrets are case sensitive, 12-32 characters, or 16-32 characters for Microsoft iSCSI initiators

The following example sets the incoming password as abcdefghijklmn02 and the outgoing password as

pqrstuvwxyz12345:

Ready.
set iSCSIChapSecret in TESTL abcdefghijklmn02
Ready.*
set iSCSIChapSecret out pqrstuvwxyz12345
Ready.*

set iSCSIPortNumber [port number]

The set iSCSIPortNumber command specifies the SNC port number which listen for iSCSI
connections.The port number must be between 1024 and 65535. The default setting is “3260." A
saveConfiguration restart command must be used to permanently save this configuration. Refer to get

iSCSIPortNumber on page 70. This command must be followed by saveConfiguration restart.

Port Number Meaning

0 or 1 SCSI connection labeled SCSI port 0 or SCSI port 1

Ready.
set iscsiportnumber 1024
Ready.*

SNC 450x User’s Guide 91

set iSNSLoginControl [status]

CAUTION

The set iSNSLoginControl command specifies whether or not the SNC delegates its access control and
authorization to an iSNS server. The default setting is “disabled.” Refer to set iSNSServer [IP address]
page 92 and get iSNSLoginControl

Status Meaning

enabled The SNC delegates its access control and authorization to an iSNS server

disabled The SNC retains its access control and authorization

Ready.
set isnslogincontrol disabled
Ready.*

Contact ATAC before using this command.

on

on page 70.

set iSNSServer [IP address]

CAUTION

The set iSNSServer specifies the IP address of a valid iSNS server from which the SNC attempts iSCSI
initiator discovery where xxx.xxx.xxx.xxx is the IP address. Setting to 0.0.0.0 disables iSNS server lookup.
The default setting is “0.0.0.0." A saveConfiguration restart command must be used to permanently save
this configuration. Refer to get iSNSServer

saveConfiguration restart.

Contact ATAC before using this command.

on page 71. This command must be followed by

Ready.
set isnsserver 192.16.5.198
Ready.*

set MaxOpTemp [temperature]

CAUTION

The set MaxOpTemp command sets the maximum internal operating temperature of the SNC in degrees
Celsius. If the internal temperature of the SNC rises above the maximum operating temperature, thermal
control event handling occurs. Valid values are from 55 to 70. The default setting is “70." Refer to get

MaxOpTemp on page 71. This command must be followed by saveConfiguration restart.

Valid Temperature Values

55-70

Ready.
set maxoptemp 60
Ready.*

Contact ATAC before using this command.

92 Management Port Command Reference

set MinOpTemp [temperature]

CAUTION

The set MinOpTemp command sets the minimum internal operating temperature of the SNC in degrees
Celsius. If the internal temperature of the SNC falls below the minimum operating temperature, thermal
control event handling occurs. Valid values are from 0 to 15. The default setting is “0." Refer to get

MinOpTemp on page 71.This command must be followed by saveConfiguration restart.

Valid Temperature Values

0-15

Ready.
set minoptemp 5
Ready.*

Contact ATAC before using this command.

set OpTempWarn [temperature]

CAUTION

The set OpTempWarn command sets the number of degrees Celsius before a thermal control event warns
you if the SNC is approaching the minimum or maximum internal operating temperature. The warning is sent
to the system log. Valid values are from 0 to 15. The default setting is “5." Refer to set OpTempWarn

[temperature]. This command must be followed by saveConfiguration restart.

Contact ATAC before using this command.

Temperature Valid Values

0-15

Ready.
set optempwarn 5
Ready.*

set Password

The restoreConfiguration default command sets the password to the default value “Password."
Passwords are case sensitive. They can be from 1 to 35 characters long, with no spaces. When the
password is empty, Telnet and FTP do not validate the password. To create an empty password, do not
type an answer to the password command confirmation prompts.

The following is an example of the input and output for the set Password command. Enter the old
password. In the example below, the old password is “Password.” Type in the new password at the New
Password prompt. Re-enter the password at the Confirm New Password prompt. Neither entry displays
on the screen. This command must be followed by saveConfiguration norestart.

Ready.
set password
Old Password: Password
New Password:
Confirm New Password:
Your password has been changed.
Ready. *

SNC 450x User’s Guide 93

Because the Ready prompt is followed by an asterisk, you must issue the saveConfiguration <status>
command to complete the change.

set SCSIInitID [port number] [ID choices]

CAUTION

Contact ATAC before using this command.

The set SCSIInitID command specifies the SCSI initiator ID to be used on the specified SCSI port. All maps
coinciding with the user-specified SCSIInitID must be set to offline and becomes invalid upon issuing this
command. Choices are 0 to 15. The default setting is “7." Refer to get ScsiInitID [port number] [ID choices]
on page 72. This command must be followed by saveConfiguration restart.

Port Number Meaning

0 or 1 SCSI connection labeled SCSI port 0 or SCSI port 1

SCSI Initiator ID Choices

123456789101112131415

The following example specifies the SCSI initiator ID on SCSI port 0 as 15.

Ready.
get SCSIInitID 0 1
ScsiInitID = 7
Ready.*
set SCSIInitID 0 15
Ready.*

set SCSIPortBusSpeed [port number] [speed]

CAUTION

The set SCSIPortBusSpeed command controls the transfer rate at which the SNC negotiates with its SCSI
devices. Choices are fast, ultra, ultra2 and ultra3. The default setting is “ultra3." Refer to get

SCSIPortBusSpeed [port number] on page 72. This command must be followed by saveConfiguration

restart.

Port Number Meaning

0 or 1 SCSI connection labeled SCSI port 0 or SCSI port 1

Speed Choices

fast ultra ultra2 ultra3

Ready.
set scsiportbusspeed 0 ultra2
Ready.*

Contact ATAC before using this command.

94 Management Port Command Reference