LSI SYM8953U User Manual

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Symbios

SYM8953U PCI to Ultra2 SCSI Host Adapter

User’s Guide

December 1999

Version 1.0

Order Number S14036

Electromagnetic Compatibility Notices

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and

2. This device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part

15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful int e rference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or t elevision reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and t he receiver.

• Connect the equipment into an outlet on a circuit different from that to which t he receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Shielded cables for SCSI connection external to the cabinet are used in the compliance testing of this Product. LSI Logic is not responsiblefor any radio or television interference caused byunauthor ized modification of this equipment or the substitution or attachment of c onnecting cables and equipment other than those specified by LSI Logic. The correction of interferences caused by such unauthorized modification, substitution, or attachment will be the responsibility of the user.

The LSI Logic Symbios

This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du

Canada.

SYM8953U is tes ted to comply with FCC standards for home or office use.

This is a Class B product based on the standard of the Voluntary Control Council for Interference from Information Technology Equipment (VCCI). If this is used near a radio or television receiver in a domestic environment, it may cause radio interference. Install and use the equipment according to the instruction manual.

LSI Logic Corporation North American Headquarters Milpitas, CA

408.433.8000

This document c ontains proprietar y information of LSI Logic Corporation. The information contained herein is not to be used by or disclosed to third parties without the express written permission of an officer of LSI Logic Corporation.

LSI Logic products are not intended for use in life-support appliances, devices, or systems. Use of any LSI Logic product in such applications without written consent of the appropriate LSI Logic officer is prohibited.

Document DB15-000133-00, First Edition (December 1999). This document describes Version 1.0 of the LSI Logic Corporation SYM8953U PCI to Ultra2 SCSI Host Adapter and will remain the official reference source for all revisions/releases of this product until rescinded by an update.

To receive product literature, visit us at http://www.lsilogic.com.

LSI Logic Corporation reserves the right to make changes to any products herein at any time without notice. LSI Logic does not assume any responsibility or liability arising out of the application or use of any product described herein, except as expressly agreed to in writing by LSI Logic; nor does the purchase or use of a product from LSI Logic convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual property rights of LSI Logic or third parties.

The LSI Logic logo design and Symbios are registered trademarks and SDMS, SCRIPTS, and LVD Link are trademarks of LSI Logic Corporation. All other brand and product names may be trademarks of their respective companies.

iii

Chapter 1 Using the SYM8953U Host Adapter

1.1 General Description 1-1

1.2 Features 1-2

1.2.1 PCI Interface 1-2

1.2.2 SCSI Interface 1-2

1.2.3 Board Characteristics 1-3

1.3 Interface Descriptions 1-3

1.3.1 The PCI Interface 1-4

1.3.2 The SCSI Interface 1-4

1.3.3 Ultra2 SCSI Technology 1-5

1.3.4 LVD Link Technology 1-5

1.3.5 On-Board LED 1-6

Chapter 2 Installing the SYM8953U Host Adapter

2.1 Quick Installation Procedure 2-1

2.2 Detailed Installation Procedure 2-3

2.2.1 Before You Start 2-3

2.2.2 Inserting the Host Adapter 2-4

2.2.3 Connecting the SCSI Peripherals 2-7

2.2.4 Making Internal SCSI Bus Connections 2-10

2.2.5 Making External SCSI Bus Connections 2-15

2.2.6 SCSI Bus Termination 2-18

2.2.7 Setting SCSI IDs 2-22

2.3 Completing the Installation 2-24

Chapter 3 Configuring the SYM8953U Host Adapter

3.1 Overview of the SCSI BIOS Configuration Utility 3-1

3.1.1 Starting the Configuration Utility 3-2

3.1.2 Exiting the SCSI BIOS Configuration Utility 3-3

Contents v

3.2 The Symbios SCSI BIOS Configuration Utility Menus 3-3

3.2.1 Using the Menus 3-3

3.2.2 Main Menu 3-4

3.2.3 Adapter Properties Menu 3-6

3.2.4 Device Properties Menu 3-10

3.2.5 Boot Adapter List Menu 3-15

3.2.6 Global Properties Menu 3-18

3.2.7 Exit Menu 3-20

Appendix A Technical Specifications

A.1 Physical Environment A-1

A.1.1 Physical Characteristics A-1 A.1.2 Electrical Characteristics A-2 A.1.3 Thermal, Atmospheric Characteristics A-3 A.1.4 Electromagnetic Compliance A-3 A.1.5 Safety Characteristics A-3

A.2 Operational Environment A-3

A.2.1 The PCI Interface A-4 A.2.2 The SCSI Interface A-7 A.2.3 On-Board LED A-10 A.2.4 The SCSI Busy LED A-10

Appendix B Glossary of Terms and Abbreviations

Index

Customer Feedback

Figures

2.1 Hardware Connections for the SYM8953U Host Adapter 2-5

2.2 Inserting the Host Adapter 2-6

2.3 SCSI Cables 2-9

2.4 Internal SCSI Ribbon Cable to Host Adapter Connection 2-10

2.5 Internal SCSI Ribbon Cable to Internal SCSI Device Connection 2-11

2.6 Connecting Additional Internal SCSI Devices 2-12

vi Contents

Tables

2.7 Multiple Internal SCSI Devices Chained Together 2-13

2.8 SCSI LED Connector 2-14

2.9 External Cable to Host Adapter 2-15

2.10 External SCSI Device Cable 2-16

2.11 Multiple External SCSI Devices Chained Together 2-17

2.12 Internal SCSI Device Termination 2-19

2.13 External SCSI Device Termination 2-20

2.14 Internal and External SCSI Device Termination 2-21

3.1 Main Menu 3-5

3.2 Adapter Properties Menu 3-7

3.3 Device Properties Menu (Left Half) 3-11

3.4 Device Properties Menu (Right Half) 3-12

3.5 Boot Adapter List Menu 3-16

3.6 Global Properties Menu 3-18

3.7 Exit Menu 3-20

A.1 SYM8953U Mechanical Drawing A-2

2.1 SCSI Bus Widths and Speeds 2-7

2.2 SCSI Bus Lengths 2-8

2.3 SCSI ID Record 2-23

3.1 Configuration Commands 3-4

3.2 Main Menu Fields and Descriptions 3-5

3.3 Adapter Properties Fields and Descriptions 3-8

3.4 Device Properties Fields and Descriptions 3-13

3.5 Boot Adapter List Fields and Descriptions 3-17

3.6 Global Properties Fields and Descriptions 3-19

A.1 Maximum Power Requirements A-2 A.2 PCI Connector J1 (Front) A-5 A.3 PCI Connector J1 (Back) A-6 A.4 Internal SCSI Connector J2 A-8 A.5 External SCSI Connector J3 A-9 A.6 LED Connector J4 A-10

Contents vii

viii Contents

Preface

Audience

Organization

This book is the primary reference and user’s guide for the LSI Logic Symbios complete functional description for the SYM8953U as well as complete physical and electrical specifications.

This document assumes that you have some familiarity with SCSI protocol and related support devices and will benefit persons installing and using the SYM8953U Host Adapter Board.

SYM8953U PCI to Ultra2 SCSI Host Adapter. It contains a

• Chapter 1, Using the SYM8953U Host Adapter, defines the

interfaces and characteristics of the SYM8953U PCI to Ultra2 SCSI Host Adapter Board.

• Chapter 2, Installing the SYM8953U Host Adapter, provides both

quick and detailed installation instructions.

• Chapter 3, Configuring the SYM8953U Host Adapter, describes

the SCSI BIOS Configuration Utility to configure adapter and device settings.

• Appendix A, Technical Specifications, describes the physical and

operational environments of the SYM8953U Host Adapter Board.

• Appendix B, Glossary of Terms and Abbreviations,provides

definitions of various terminology that is referenced throughout this user’s guide.

Preface ix

Related Publications

Symbios Guide, LSI Logic Corporation, Order Number S14007

PCI SCSI Device Management System SDMS™ 4.0 User’s

Symbios

SYM53C895A PCI to Ultra2 SCSI Controller Technical

Manual, LSI Logic Corporation, Order Number S14028

xPreface

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Chapter 1 Using the SYM8953U Host Adapter

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This chapter describes the SYM8953U Host Adapter interface to PCI computer systems and includes these topics:

• Section 1.1, “General Description,” page 1-1

• Section 1.2, “Features,” page 1-2

• Section 1.3, “Interface Descriptions,” page 1-3

1.1 General Description

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The LSI Logic Corporation Symbios®SYM8953U PCI to Ultra2 SCSI Host Adapter board provides an Ultra2 SCSI interface to PCI computer systems. It is referred to as the SYM8953U throughout this guide. Installing this adapter in your PCI system allows connection of up to 15 SCSI devices.

The SYM8953U board is a 16-bit, Low Voltage Differential (LVD)/SingleEnded (SE) SCSI solution for your computer. This board also supports legacy Fast SCSI and Ultra SCSI devices, and the newest LVD Ultra2 SCSI devices. It is also backwards compatible with existing wide SCSI applications for the SYM8251S and SYM8751SP/E host adapters.

Symbios SCSI Device Management System (SDMS™) software operates the board. SCSI software provided by other vendors that works with the SYM53C895A chip can also be used. BIOS support for this adapter is incorporated on the board in a Flash memory device. The SYM8953U host adapter has a serial EEPROM device for storing the user’s SCSI bus configuration.

The SYM53C895A chip also contains a SCSI SCRIPTS™ processor that permits both DMA and SCSI commands to be fetched from host memory or internal SCRIPTS RAM. Algorithms written in SCSI SCRIPTS control

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Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter 1-1

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the actions of the SCSI and DMA cores. The SCRIPTS processor executes complex SCSI bus sequences independently of the host CPU. For more information on the SCSI SCRIPTS Instruction Set used to write these algorithms, refer to the Symbios SYM53C895A PCI to Ultra2 SCSI Controller Technical Manual.

This user’s guide, along with the Symbios PCI SCSI Device Management System SDMS 4.0 User’s Guide, contains a complete library of product information and installation instructions. With this information, the full benefits of your SYM8953U PCI to Ultra2 SCSI Host Adapter are available to you.

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1.2 Features

This section provides a high-level overview of the PCI Interface,theSCSI

Interface, and Board Characteristics for the SYM8953U Host Adapter

board.

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1.2.1 PCI Interface

• Supports 32-bit DMA bus master with 64-bit addressing

• Burstsupto133Mbytes/s(@33MHz)withzerowait-statebus

master data

• Supports universal 3.3 V and 5 V PCI bus voltage

• Supports 32-bit 33 MHz data bursts with variable burst lengths

• Bursts 2 to 128 dwords across the PCI bus

• Prefetches up to 8 dwords of SCRIPTS instructions

• Supports PCI Write and Invalidate, Read Line, and Read Multiple

commands

1.2.2 SCSI Interface

• Supports 16-bit LVD and SE signaling

• Supports SCRIPTS

– Includes 8 Kbytes RAM for SCRIPTS instruction storage

• Automatically enables LVD or SE termination

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1-2 Using the SYM8953U Host Adapter

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• Contains external 68-pin High Density (HD) and internal 68-pin HD

latching connectors

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• Perf orms wide Ultra2 SCSI LVD synchronous transfers up to

80 Mbytes/s

• Supports SCSI synchronous offset up to 31

• Provides SCSI termination power (TERMPWR) source with

autoresetting circuit protection device

• Supports SCSI Configured AutoMatically (SCAM) Level 1 Capability

(Set “OFF” by default)

• Utilizes flash ROM for BIOS storage for up to 256 Kbytes

• Supports variable block size and scatter/gather data transfers

• Performs complex SCSI bus sequences without interrupts, including

restore data pointers

• Has serial EEPROM for user configuration utility

• Has SCSI bus activity LED connector and on-board LED

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1.2.3 Board Characteristics

• PCI board dimensions,

152.4 x 88.90 mm (6.00 x 3.5 inches)

• PCI Universal 32-bit card edge connector

• HD 68-pin external connector

• HD 68-pin internal connector

A mechanical drawing showing board dimensions and component layout is located in Appendix A, “Technical Specifications”.

1.3 Interface Descriptions

This section provides a more detailed explanation about the PCI Interface, the SCSI Interface, Ultra2 SCSI Technology, and LVD Link™ Technology.

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Interface Descriptions 1-3

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1.3.1 The PCI Interface

PCI, a high-speed standard local bus, interfaces I/O components to the processor and memory subsystems in equipment ranging from PCs to servers. The PCI functionality for the SYM8953U is contained within the Symbios SYM53C895A PCI to Ultra2 Controller with LVD Link Universal Transceivers. The SYM53C895A connects directly to the PCI bus and generates signal timing and bus protocol in compliance with the PCI Specification Revision 2.2.

The PCI interface operates as a 32-bit DMA bus master capable of 64-bit addressing. The connection is made through edge connector J1, shown in Figure 2.1. The signal definitions and pin numbers conform to the PCI Local Bus Specification Revision 2.2 standard. The SYM8953U host adapter conforms to the PCI universal signaling environment for a 5 V or 3.3 V PCI bus.

1.3.2 The SCSI Interface

The SCSI functionality for the SYM8953U is contained within the

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SYM53C895A. This chip is a PCI to Ultra2 SCSI Controller with LVD Link Universal Transceivers. It connects directly to the SCSI bus and generates signal timing and bus protocol in compliance with SCSI standards.

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The SCSI interface on the SYM8953U operates as an 8-bit or 16-bit interface. It supports 8-bit or 16-bit, synchronous and asynchronous, LVD or SE, Fast, Ultra and Ultra2 SCSI protocols in various combinations. The interface is made through connectors J2 and J3 (see Figure 2.1). Internal connector J2 is a 68-pin HD right angle latching connector . External connector J3 is a shielded 68-pin HD right angle connector exposed in the back panel bracket. An on-board LED (labeled Activity) indicates SCSI bus activity. LVD/SE dual mode, active termination is provided on the SYM8953U board. Termination is automatically disabled when both SCSI connectors are used. The SYM8953U supplies SCSI bus TERMPWR through a blocking diode and a self-resetting 1.5 A short circuit protection device. A 40 MHz oscillator is installed on the SYM8953U to provide the clock frequency to the SYM53C895A that is necessary to support Ultra2 SCSI transfers of up to 80 Mbytes/s.

1-4 Using the SYM8953U Host Adapter

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1.3.3 Ultra2 SCSI Technology

The SYM8953U fully supports Ultra2 SCSI. Ultra2 SCSI is an extension of the SCSI Parallel Interface 2 and 3 (SPI-2 and SPI-3) family of standards. SCSI2 expands the bandwidth of the SCSI bus, allowing faster synchronous data transfers.

For the internal bus, special impedance SCSI ribbon cables are specified for operation with Ultra and Ultra2 SCSI devices. You must consider the total length of the bus cables and the number of devices on the SCSI bus when setting up your system. Make sure that your SCSI cables are rated for standard SCSI (Fast, Ultra, and Ultra2) environments.

Chapter 2, “Installing the SYM8953U Host Adapter” has a detailed

explanation of SCSI bus connections.

1.3.4 LVD Link Technology

To support greater device connectivity and a longer SCSI cable, the SYM8953U features LVD Link technology, the LSI Logic implementation of Universal LVD SCSI. LVD Link transceivers provide the inherent

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reliability of differential SCSI, and a long-term migration path to faster SCSI transfer rates.

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The LVD Link transceivers reduce the power needed to drive the SCSI bus, so that the I/O drivers can be integrated directly into the chip. LVD Link technology lowers the amplitude of noise reflections and allows higher transmission frequencies.

The LVD Link transceivers operate in LVD and SE modes. They also allow the chip to detect a High Voltage Differential (HVD) signal when the chip is mistakenly connected to external HVD transceivers. When connected, the SYM53C895A chip automatically detects signal type, based on the voltage detected. It automatically switches to the SE or LVD mode, as appropriate. All bus devices must be LVD or SE. If a HVD device is detected, the board puts the SCSI bus in the high impedance state and shuts down.

1.3.4.1 Benefits of LVD Link

LVD Link, supported by the SYM53C895A, is a signaling technology that increases the reliability of SCSI data transfers over longer distances than supported by SE SCSI. The low current requirements of LVD allow direct

Interface Descriptions 1-5

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integration of I/O transceivers into the chip. LVD provides the reliability of

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HVD SCSI without the added cost of external differential transceivers. Ultra2 SCSI with LVD allows a longer SCSI cable and more devices on the bus, using the same cables defined in the SCSI-3 parallel Interface (SPI-2) standard for Ultra SCSI.

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Important:

1.3.5 On-Board LED

An on-board LED (CR1) indicates the status of the SCSI bus. This SCSI Activity LED lights when the SCSI bus is transferring information. It is located near J4 (see Figure A.1).

To utilize Ultra2 SCSI performance, you must only have LVD devices on the bus. Do not mix any SE devices with LVD devices or the entire bus will drop to SE, limiting bus performance to Ultra SCSI levels.

1-6 Using the SYM8953U Host Adapter

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Chapter 2 Installing the SYM8953U Host Adapter

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This chapter provides instructions on how to install the SYM8953U Host Adapter and includes these topics:

• Section 2.1, “Quick Installation Procedure,” page 2-1

• Section 2.2, “Detailed Installation Procedure,” page 2-3

• Section 2.3, “Completing the Installation,” page 2-24

2.1 Quick Installation Procedure

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This section provides an overview of the installation procedure. If you are an experienced computer user with prior host adapter installation and SCSI bus setup experience, this section may sufficiently describe the procedure for you. If you prefer a more detailed guidance for installing the SYM8953U host adapter, proceed to Section 2.2, “Detailed

Installation Procedure.”

For safe and proper installation, check the user’s manual supplied with your computer and perform the following steps.

Step 1. Ground yourself before removing this host adapter board. Step 2. Remove the SYM8953U PCI to Ultra2 SCSI Host Adapter

board from the packing and check that it is not damaged. An example of this host adapter board is shown in Figure 2.1.

A more detailed drawing is located in Figure A.1. Step 3. Switch off and unplug the system. Step 4. Remove the cabinet cover on your computer to access the PCI

slots.

Caution:

Ground yourself by touching a metal surface before handling boards. Static charges on your body can damage

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Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter 2-1

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electronic components. Handle plug-in boards by the edge;

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do not touch board components or gold connector contacts. The use of a static ground strap is recommended.

Step 5. Locate the slots for installing a PCI plug-in board.

The SYM8953U requires a PCI slot that allows bus master

operation. See Figure 2.2. Step 6. Remove the blank bracket panel on the back of the computer

aligned with the PCI slot you intend to use.

Save the bracket screw for securing the installed board. Step 7. Carefully insert the edge connector J1 of the host adapter into

the PCI slot. Make sure the edge connector is properly aligned

before pressing the board into place. See Figure 2.2.

The bracket around connector J3 (see Figure 2.1) should fit

where the blank bracket panel was removed.

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Note:

You may notice that the components on a PCI host adapter face the opposite way from non-PCI adapter boards you have in your system. This orientation is correct. The board is keyed and will only go in one way.

Step 8. Secure the bracket with the bracket screw before making the

internal and external SCSI bus connections. Step 9. If you are connecting any internal SCSI devices, plug a 68-pin

connector on the end

of the internal SCSI ribbon cable into

connector J2 (see Figure 2.1).

Be sure you match pin 1 on both connectors. Step 10. Connect the LED cable to J4 if desired.

This is designed to drive an off-board system LED and

indicates activity on the SCSI bus. The off-board LED will

operate at the same time as the on-board SCSI Activity LED. Step 11. Replace the cabinet cover as described in the user’s manual for

your computer. Step 12. Make all external SCSI bus connections. Step 13. Refer to the Symbios PCI SCSI Device Management System

SDMS 4.0 User’s Guide (or the guide for the software you will

use) to load the driver software for your particular operating

system.

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2-2 Installing the SYM8953U Host Adapter

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Remember: The SCSI bus requires proper termination, and no duplicate

SCSI IDs.

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2.2 Detailed Installation Procedure

This section provides step-by-step instructions for installing the SYM8953U host adapter board, and connecting it to your SCSI peripherals. If you are experienced in these tasks, you may prefer to use

Section 2.1, “Quick Installation Procedure.”

2.2.1 Before You Start

Before starting, look through the following task list to get an overall idea of the steps you will be performing. If you are not confident you can perform the tasks as described here, LSI Logic suggests getting assistance.

• Open your PC cabinet and select an appropriate open PCI slot

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• Insert the host adapter board

• Connect the internal and external SCSI peripherals

• Terminate the SCSI bus

• Set the peripheral SCSI IDs

• Make any configuration changes

• Close your PC cabinet

• Install the software

The SCSI host adapter acts on your computer’s behalf as the host to your suite of SCSI peripherals. Each chain of SCSI peripheral devices and their host adapter work together, and are referred to as a SCSI bus.

Each SCSI host adapter that you install can act as host for up to 15 peripheral devices, not including the adapter itself.

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Detailed Installation Procedure 2-3

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2.2.2 Inserting the Host Adapter

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For safe and proper installation, you will need the user’s manual supplied with your computer for reference. Perform the steps listed below to install the SYM8953U.

Step 1. Ground yourself before removing this host adapter board. Step 2. Remove the SYM8953U PCI to Ultra2 SCSI Host Adapter

board from the packing and check that it is not damaged.

An example of this host adapter board is shown in Figure 2.1.

A more detailed drawing is located in Figure A.1. Step 3. Switch off the computer and unplug power cords for all

components in your system. Step 4. Remove the cover from your computer per the instructions in

the user’s manual for your system to access the PCI slots.

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Caution:

Ground yourself by touching a metal surface before removing the cabinet top. Static charges on your body can damage electronic components. Handle plug-in boards by the edge; do not touch board components or gold connector contacts. The use of a static ground strap is recommended.

Step 5. Locate the slots for PCI plug-in board installation.

Refer to the user’s manual for your computer to confirm the

location of the PCI slots. Important

: The SYM8953U board requires a PCI slot that allows bus

master operation.

Step 6. Remove the blank bracket panel on the back of the computer

aligned with the PCI slot you intend to use.

Save the bracket screw.

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Figure 2.1 Hardware Connections for the SYM8953U Host Adapter

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External SCSI Interface J3

Internal SCSI Interface J2

LED Connector J4

SYM8953U J1 to PCI Mainboard

Step 7. Carefully insert edge connector J1 (see Figure 2.1) of the host

adapter into the PCI slot.

Make sure the edge connector is properly aligned before

pressing the board into place as shown in Figure 2.2.The

bracket around connector J3 should fit where you removed the

blank panel.

Note:

Detailed Installation Procedure 2-5

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Figure 2.2 Inserting the Host Adapter

Bracket Screw

Bracket Surround

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Step 8. Secure the board with the bracket screw (see Figure 2.2)before

making the internal and external SCSI bus connections.

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2-6 Installing the SYM8953U Host Adapter

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2.2.3 Connecting the SCSI Peripherals

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SCSI bus connections to the SYM8953U host adapter inside your computercanbemadewithanunshielded68conductorUltraSCSIPVC ribbon cable (see Figure 2.3).Theleadconnectedtopin1onthecable is marked with a colored stripe. The connectors on this cable may also be keyed to ensure proper pin-1 connection.

All external SCSI bus connections to the SYM8953U host adapter are made with high quality shielded 68 conductor cables (see Figure 2.3). The connectors on this cable are always keyed to ensure proper pin-1 connection.

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Note:

All the cables shown in Figure 2.3 are included in the Symbios Adapter Board Kit for the SYM8953U host adapter.

Table 2.1 SCSI Bus Widths and Speeds

STA Terms

SCSI-1 8 5 Fast SCSI 8 10 Fast Wide SCSI 16 20 Ultra SCSI 8 20 Wide Ultra SCSI 16 40 Ultra2 SCSI 8 40 Wide Ultra2 SCSI 16 80 Note: Absence of the word “Wide” means an 8-bit bus width. It is

acceptable to use the word “Narrow” to avoid ambiguity.

SCSI Bus

Width, Bits

SCSI Bus Speed

Maximum Data Rate,

Mbytes/s

You can connect up to eight SCSI, Fast SCSI, and Ultra SCSI devices on a SE Ultra SCSI bus only if they are evenly spaced on a 1.5-meter Ultra SCSI cable (0.19 m between devices).

Detailed Installation Procedure 2-7

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You can connect up to four devices if they are evenly spaced on a

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3-meter Ultra SCSI cable (0.75 m between devices). Your SE SCSI bus should not exceed 3 meters (total internal and external cable lengths), even with fewer than four devices.

For L VD applications, you can connect up to 16 devices including the host adapter if they are evenly spaced on a 12-meter Ultra SCSI cable (0.19 m minimum between devices).

Table 2.2 SCSI Bus Lengths

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Maximum Bus Length, Meters

Maximum #

SE Differential LVD

of Devices

SCSI-1 6 25 12 8 Fast SCSI 3 25 12 8 Fast Wide SCSI 3 25 12 16 Ultra SCSI 1.5 Ultra SCSI 3

25 12 8

––4 Wide Ultra SCSI – 25 12 16 Wide Ultra SCSI 1.5 – – 8 Wide Ultra SCSI 3 – – 4 Ultra2 SCSI Note Wide Ultra2 SCSI Note

Note Note

12 8 12 16

1. This parameter may be exceeded in point-to-point and engineered applications.

2. Additional spacing rules apply.

3. SE and high power differential are not defined at Ultra2 speeds.

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Figure 2.3 SCSI Cables

Terminated SCSI Cable for Internal Connections (for use with nonterminated internal devices)

68-pin HD

Terminated End

SCSI Cable for Internal Connections

68-pin HD

SCSI Cable for External Connections

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68-pin HD

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Detailed Installation Procedure 2-9

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2.2.4 Making Internal SCSI Bus Connections

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This section provides step-by-step instructions about making internal SCSI bus connections.

Step 1. Plug one end of the 68-pin internal SCSI ribbon cable into

connector J2 (see Figure 2.4).

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Important

: You must match pin 1 on this and all subsequent

connections.

Figure 2.4 Internal SCSI Ribbon Cable to Host Adapter

Connection

Internal SCSI Interface J2

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Step 2. If you have only two internal devices to connect, plug the other

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end of the internal SCSI ribbon cable into the SCSI connector on your internal SCSI device. An example of this connection is shown in Figure 2.5.

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Note:

For nonterminated internal SCSI devices, a terminated cable will be required. This connector must be on the end of the SCSI cable.

Figure 2.5 Internal SCSI Ribbon Cable to Internal SCSI Device Connection

Detailed Installation Procedure 2-11

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If you have more than one internal device to connect, use an internal

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SCSI ribbon cable with the required number of connectors attached along its length and proceed to the next step. If you have only one internal device, proceed to page 2-14.

Step 3. Plug the cable into each additional device as needed.

An example of this type of chained connection is shown in

Figure 2.7. Make sure to match pin 1 on all connections.

Figure 2.6 Connecting Additional Internal SCSI Devices

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2-12 Installing the SYM8953U Host Adapter

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Figure 2.7 Multiple Internal SCSI Devices Chained Together

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Detailed Installation Procedure 2-13

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Most PC cabinets are designed with a front panel LED.

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Step 4. Connect the LED cable to connector J4 on the host adapter, as

shown in Figure 2.8. When properly connected, the front panel LED lights when

there is activity on the SCSI bus. Connector J4 is not keyed. The orientation of the LED cable

should not matter as long as all four pins are connected. If the LED does not light during SCSI bus activity from this host adapter, you may have to rotate the LED cable connector 180

on J4.

Figure 2.8 SCSI LED Connector

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LED Connector J4

Some LED cables have only two wires. In this case, place the connector on one end or the other of J4. If the LED does not light when there is SCSI activity, put the connector on the other half of J4.

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2-14 Installing the SYM8953U Host Adapter

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2.2.5 Making External SCSI Bus Connections

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This section provides step-by-step instructions about making external SCSI bus connections. T o connect external SCSI devices to the SYM8953U host adapter:

Step 1. Plug the 68-pin HD connector on one end of a shielded external

SCSI cable (see Figure 2.3) into the host adapter connector J3 (see Figure 2.1).

This connector is in the bracket attached to the back panel of your computer. Figure 2.9 shows how this connection is made.

Figure 2.9 External Cable to Host Adapter

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HD Connector

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Detailed Installation Procedure 2-15

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Step 2. Plug the 68-pin connector on the other end of the shielded

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external SCSI cable into the SCSI connector on your external SCSI device. An example of this connection is shown in

Figure 2.10.

Figure 2.10 External SCSI Device Cable

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HD Connectors

If this is the only external SCSI device on your system, proceed to

Section 2.2.6, “SCSI Bus Termination,” page 2-18 for termination

instructions. If you have multiple SCSI devices, proceed to the next page.

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2-16 Installing the SYM8953U Host Adapter

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Step 3. Chain multiple devices together with shielded external SCSI

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cables. An example of these chained connections is shown in

Figure 2.11.

Figure 2.11 Multiple External SCSI Devices Chained Together

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HD Connectors

After you have connected all of your internal and external devices, proceed to Section 2.2.6, “SCSI Bus Termination.”

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Detailed Installation Procedure 2-17

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2.2.6 SCSI Bus Termination

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The devices making up the SCSI bus are connected serially (chained together) with SCSI cables. The first and last physical SCSI devices connected on the ends of the SCSI bus must have their terminators active. All other SCSI devices on the bus must have their terminators removed or disabled. Remember that the SYM8953U host adapter is also on the SCSI bus—its termination is automatically enabled when it is connected to the end of the bus.

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Important:

The peripheral device terminators are usually set with jumpers, resistor modules, or with a switch on the peripheral. Refer to the peripheral manufacturer’s instructions and to the user’s manual for your computer for information on how to identify the terminator type/setting for each device and how to set/change it.

Caution:

The autoenable/disable sensing feature on the SYM8953U may enable termination erroneously if it is directly cabled to another SCSI device or host adapter using the same sensing method. The SYM8953U senses the presence of SCSI devices by detecting the ground signal on conductor 50 of the SCSI cable.

The SYM8953U automatically controls SCSI bus termination for three different bus configurations, depending on how it is connected (see

Figure 2.1). The three bus configurations are:

• Section 2.2.6.1, “Internal Bus Connections”

• Section 2.2.6.2, “External Bus Connections”

• Section 2.2.6.3, “Internal and External Bus Connections”

Termination on the SYM8953U host adapter for these three different bus configurations is discussed below.

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2.2.6.1 Internal Bus Connections

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If you have only internal SCSI device connections to your host adapter, you must terminate the last internal device on the SCSI bus. You must disable the terminators on all other devices. Termination on your host adapter is automatically enabled in this case.

Figure 2.12 shows an example of how termination is determined for this

SCSI bus configuration.

Figure 2.12 Internal SCSI Device Termination

Last Device on Bus - Terminators Enabled

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Does not end Bus Terminators Disabled

Host Adapter Automatically Terminated

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Detailed Installation Procedure 2-19

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2.2.6.2 External Bus Connections

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If you have only external SCSI device connections to your host adapter, you must terminate the last external device on the SCSI bus. You must disable the terminators on all other devices. Termination on the host adapter is automatically enabled in this case.

Figure 2.13 shows an example of how termination is determined for this

SCSI bus configuration.

Figure 2.13 External SCSI Device Termination

Last Device on Bus Terminators Enabled

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Does not end Bus Terminators Disabled

Host Adapter Automatically Terminated

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2-20 Installing the SYM8953U Host Adapter

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2.2.6.3 Internal and External Bus Connections

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If you have both internal and external SCSI device connections to your host adapter, you must terminate the last internal and last external devices on the SCSI bus. You must also disable the termination on all other devices. Termination on the host adapter is automatically disabled in this case.

Figure 2.14 shows an example of how termination is determined for this

SCSI bus configuration.

Figure 2.14 Internal and External SCSI Device Termination

Last device on Bus Terminators Enabled

Does not end Bus Terminators Disabled

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Host Adapter Termination Automatically Disabled

Do not end Bus Terminators Disabled

Last Device on Bus Terminators Enabled

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Detailed Installation Procedure 2-21

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2.2.7 Setting SCSI IDs

You must set each SCSI device and the host adapter to a separate SCSI ID 0 through 15. SCSI ID 7 is the preset host adapter setting, giving it the highest priority on the SCSI bus. If you plan to boot your computer from a SCSI hard disk drive on the SCSI bus, that drive should have the lowest SCSI ID on the bus. Typically, SCSI ID 0 is used; however, for system performance optimization, an ID other than 0 (zero) can be used.

Chapter 3, “Configuring the SYM8953U Host Adapter” explains how to

set the host adapter ID using the Symbios SCSI BIOS Configuration Utility.

The peripheral device SCSI IDs are usually set with jumpers or with a switch on the peripheral. Refer to the peripheral manufacturer’s instructions and to the user’s manual for your computer to determine the ID of each device and how to change it.

: Yo u must not have any duplication of SCSI IDs on a SCSI

Note

bus.

Step 1. Determine the SCSI ID of each device on the SCSI bus. Note

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Step 2. Make any necessary changes to the SCSI IDs to eliminate

any duplications.

duplicates and record the IDs for future reference.

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Table 2.3 is provided as a place to keep this record.

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Table 2.3 SCSI ID Record

SCSI ID SCSI Device

15 14 13 12 11 10

9 8 7 SYM8953U Host Adapter (default) 6

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5 4 3 2 1 0

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Detailed Installation Procedure 2-23

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2.3 Completing the Installation

Before replacing the cover on your computer, review this installation procedure check list. This can save you effort later.

Verify Installation Procedures Done

Host adapter connection in PCI bus slot secure

Internal SCSI bus connections secure (pin-1 continuity)

External SCSI bus connections secure

Proper SCSI bus termination established

Unique SCSI IDs set and recorded for each device

Step 1. Replace the cabinet cover on your computer.

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Step 2. Plug in all power cords. Step 3. Switch power on to all devices and your computer. Step 4. Wait for your computer to boot up. Step 5. To change the configuration of the host adapter, see Chapter 3,

“Configuring the SYM8953U Host Adapter”.

Step 6. Load the software and drivers suitable to your application and

system. Refer to the Symbios PCI SCSI Device Management System

SDMS 4.0 User’s Guide or the guide for the software you plan to use.

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Chapter 3 Configuring the SYM8953U Host Adapter

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This chapter describes configuring the SYM8953U Host Adapter and includes these topics:

• Section 3.1, “Overview of the SCSI BIOS Configuration Utility,”

page 3-1

• Section 3.2, “The Symbios SCSI BIOS Configuration Utility Menus,”

page 3-3

3.1 Overview of the SCSI BIOS Configuration Utility

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The SYM8953U Host Adaptor is loaded with Symbios SCSI BIOS and Configuration Utility Version 4.15 (or greater). This chapter describes the process you need to follow to change configuration settings on your board.

The SDMS SCSI BIOS provides support for the BIOS Boot Specification (BBS), which allows you to choose which device to boot from by selecting the priority.

To use this feature, the system BIOS must also be compatible with the BBS. If your system supports the BBS, then you will use the system BIOS setup menu to select the boot and drive order. In the system BIOS setup, the Boot Connection Devices menu appears with a list of available boot options.Use that menu to select the device and rearrange the order. Then exit to continue the boot process.

In most cases you should not need to change the default configuration of the host adapter. You may decide to alter these default values if there is a conflict between device settings or if you need to optimize system performance.

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Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter 3-1

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There are four sets of configurations you can change. You make changes

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on subordinate menus called from the Main Menu, which is opened when you start the Configuration Menu. The subordinate menus are listed below.

• Adapter properties

• Device properties

• Adapter boot list

• Global properties

All these properties are controlled by menus you access through the configuration utility Main Menu. The Main Menu also gives an overview of some properties of installed Symbios host adapter boards.

3.1.1 Starting the Configuration Utility

You can see the version number of your Symbios SCSI BIOS in a banner displayed on your computer monitor during boot. If the utility is available, the following message also appears on your monitor:

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Press Ctrl-C to start Symbios Configuration Utility.. .

This message remains on your screen for about five seconds, giving you time to start the utility. If you decide to press “Ctrl-C,” the message changes to:

Please wait, invoking Symbios Configuration Utility...

After a brief pause, your computer monitor displays the Main Menu of the Symbios SCSI BIOS Configuration Utility.

These messages may appear during the boot process:

• “Adapter removed from boot order, parameters will be

updated accordingly” appears when an adapter is removed from

the system or relocated behind a PCI bridge.

• “Configuratio n data invalid, saving default

configuration !” appears if none of the information in the NVRAM

is valid.

• “Found SCSI Controller not in following Boot Order List,

to Add: Press Ctrl-C to start Symbios Configuration

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3-2 Configuring the SYM8953U Host Adapter

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Utility...” appears when less than four adapters are in the boot

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order and more adapters exist than are shown.

NonVolatile Random Access Memory (NVRAM) is available on the SYM8953U Host Adapter. Changes can be made and stored using this menu driven utility.

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Important

: This utility is a powerfultool.If, while using it, you somehow

disable all of your controllers you can recover. Pressing Ctrl-E after memory initialization during a reboot allows you to re-enable and reconfigure.

Note:

Not all devices detected by the Configuration Utility can be controlled by the BIOS. Devices such as tape drives and scanners require that a device driver specific to that peripheral be loaded. This device driver is provided by the device manufacturer.

3.1.2 Exiting the SCSI BIOS Configuration Utility

Since most changes only take effect after the system reboots, you must exit properly from the Configuration Utility. The proper exit technique is described in Section 3.2.7, “Exit Menu,” page 3-20. It also describes exiting the subordinate menus.

3.2 The Symbios SCSI BIOS Configuration Utility Menus

This chapter describes the menu system of the Symbios SCSI BIOS Configuration Menu System.

3.2.1 Using the Menus

You make your configuration changes in the main area of the menu. As in the example menus, it is lighter in color than the header or footer areas. The commands you use to make changes are shown in the footer area and described in Table 3.1. Settings with black text can be changed, settings with white text cannot. This is true regardless of whether the Color or Mono setting is chosen in the Global Properties Menu (Figure 3.6), described in detail later.

The Symbios SCSI BIOS Configuration Utility Menus 3-3

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Table 3.1 Configuration Commands

Command Description

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F1 = Help Provides context s ensitive help for the cursor

resident field. Arrow Keys = Select Item Move the cursor up, down, left, or right. +/– = Change [Item] Changes items with values in [ ] brackets. Only the

numeric keypad ‘+’ and ‘–’ are enabled. When

pressed, they toggle modifiable field to its next

relative value. ‘+’ toggles the value up and ‘–’

toggles the value down. Esc = Abort/Exit Aborts the current context operation and/or exits

the current screen. This option calls an Exit menu,

described further in Section 3.2.7. Home/End = Select Item Moves the cursor to the start/end of a scrollable

field. Enter = Execute <Item> Executes options with values in < > brackets. Press

Enter to execute the field’s associated function. F2 = Menu Sets cursor context to the Optional Menu area.

Select a menu item and press Enter. This option is

only available from the Main and Adapter

Properties menus.

3.2.2 Main Menu

When you start the Symbios SCSI BIOS Configuration Utility, the Main Menu, shown in Figure 3.1, appears. This menu displays a list of installed Symbios PCI to SCSI host adapters, information about each of them, and a series of other menu options. This list displays up to four boards.

At the opening menu, the cursor is on one of the listed adapters. If you need to change the configuration of an adapter, move to the board you want to change with the arrow keys and press Enter. This calls the menu described in detail in Section 3.2.3, “Adapter Properties Menu.” From this menu you can view and/or change the current settings for that adapter and the SCSI devices attached to it. You can select an adapter only if Current Status is “On.” Changes are possible since NVRAM is present on this host adapter.

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Figure 3.1 is an example of the Configuration Utilities Main Menu. Table

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3.2 lists the Main Menu fields and their descriptions.

Figure 3.1 Main Menu

Symbios PCI SCSI Configuration Utility Version PCI 4.15.00 <Boot Adapter List> <Global Properties>

SYM53C8XX Host Bus Adapters

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Adapter PCI

Bus

Dev/ Func

Port Number

IRQ NVM Boot

Order

LSI Logic

Control <SYM53C895A 0 98> FC00 9 Ye s 2 Enabled <SYM53C896 0 88> F800 10 Yes 3 Disabled <SYM53C896 0 58> E400 11 Yes 1 Enabled

F1 = Help ↑↓→← = Select Item -/+ = [Change Item] Esc = Abort/Exit Home/End = Scroll Enter = Execute <Item> F2 = Menu

Table 3.2 Main Menu Fields and Descriptions

Fields Descriptions

Adapter Indicates the specific SYM53C8XX Host Adapter. PCI Bus Indicates the PCI Bus number (range 0x00–0xFF,

0–255 decimal) assigned by the system BIOS to an adapter.

The Symbios SCSI BIOS Configuration Utility Menus 3-5

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Table 3.2 Main Menu Fields and Descriptions (Cont.)

Fields Descriptions

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Dev/Func Indicates the PCI Device/Function assigned by the

system BIOS to an adapter. The 8-bit value is mapped as follows:

Bit#76543210 Bits [7:3]: Device (range 0x00–0x1F, 0–31 decimal) Bits [2:0]: Function (range 0–7)

Port Number Indicates which I/O port communicates with an adapter,

as assigned by the system BIOS.

IRQ Indicates the Interrupt Request Line used by an adapter,

as assigned by the system BIOS.

NVM Indicates whether an adapter has NVM (NonVolatile

Memory) associated withit. An adapter's configurationis stored in its associated NVM. NVM can refer to NVRAM that is resident on a host adapter or to system NonVolatile Storage (NVS).

Boot Order Indicates the relative boot order (0 to 3) of an adapter.

The Symbios SCSI BIOS traverses up to four adapters in the specified order in search of bootable media. To modify this field, access the Boot Adapter List Menu.

LSI Logic Indicates whether an adapter is eligible for LSI Logic

Symbios software control or is reserved for control by non-Symbios software.

3.2.3 Adapter Properties Menu

The Adapter Properties menu allows you to view and modify adapter settings and as well as the SCSI devices connected to it. It also provides access to an adapter's device settings. To display this menu, select a device in the Adapter field on the Main Menu and press Enter. After pressing Enter, the following message flashes before the menu appears: “Initializing the adapters, reading for non-volatile

settings, and scanning for devices.....” After a few seconds the

menu appears. Figure 3.2 provides an example of the Adapter Properties menu.

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Figure 3.2 Adapter Properties Menu

Symbios PCI SCSI Configuration Utility Version PCI 4.15.00

Adapter Properties SYM53C895A 0A0

SCSI Parity [Yes]

Host SCSI ID [7]

SCSI Bus Scan Order [Low to High (0.Max)]

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Removable Media

[None]

Support

CHS Mapping [SCSI Plug and Play Mapping]

Spinup Delay (Secs) [2]

Secondary Cluster

[No]

Server

Termination Control [Auto]

F1 = Help ↑↓→← = Select Item -/+ = [Change Item]

Esc = Abort/Exit Home/End = Scroll Enter = Execute <Item>

The Symbios SCSI BIOS Configuration Utility Menus 3-7

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Table 3.3 lists the fields you can access and their descriptions.

Note

: If the field displays in black text it is available for changes.

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If it displays in white text, it is not available.

Table 3.3 Adapter Properties Fields and Descriptions

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Field Field Type

Descriptions

[Value]

Device Proper ties Executable Select this option and press Enter to view and modify

device properties.

SCSI Parity Configuration

[Yes/No]

Indicates whether SCSI parity is enabled for an adapter. When disabled, it is also necessary to disabledisconnects for all devices, as parity checking for the reselection phase is not disabled. If a non-parity generating device disconnects, its operationwillnever complete because thereselection fails due to parity error.

Host SCSI ID Configuration

[0to7/0to15]

Indicates the SCSI identifier of an adapter. It is recommended that this field be set to the highest priority SCSI identifier, which is 7.

SCSI Bus Scan Order Configuration

[Low to High (0 to Max)/HightoLow (Max to 0)]

Removable Media Support

Configuration [None / Boot Drive Only / With Media Installed]

Indicates the order in which to scan SCSI identifiers on an adapter. Changing this item will affect drive letter assignment(s) if more than one device i s attached to an adapter.

Specifies the removable media support option for an adapter. Removable media support only applies to devices that report themselves as a hard drive. It does not apply to CD-ROM devices or Magnetic Optical devices. None indicates no removable media support whether the drive is selected as first (BBS), or is first in the scan order (non-BBS). Boot Drive Only provides removable media support for a removable hard drive if it is first in the scan order. With Media Installed provides removable m edia support regardless of the drive number assignment.

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Table 3.3 Adapter Properties Fields and Descriptions (Cont.)

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Field Field Type

[Value]

CHS Mapping Configuration

[SCSI Plug and Play Mapping / Alternate CHS Mapping]

Spinup Delay (Seconds)

Secondary Cluster Server

Configuration [1 to 15]

Configuration [Yes / No]

Descriptions

Defines how the Cylinder Head Sector (CHS) values are mapped onto a disk without pre-existing partition information. SCSI Plug and Play Mapping automatically determines the most efficient and compatible mapping. Alternate CHS Mapping utilizes an alternate, possibly less efficientmapping that may berequired if a device is moved between adapters from different vendors. Caution: Neither of these optionshasany effect after a disk has been partitioned using the FDISK command. The FDISK utility is a tool that the user can use to delete partition entries, one or all of them. If all partition entries are deleted, it is necessary to reboot to clear memory or the old partitioning data will be reused, thus nullifying the previous operation. Use care to ensure that the correct disk is the target of an FDISK command.

Indicates the delay in seconds between spinups of devices attached to an adapter. Staggered spinups balance the total electrical currentloadonthe system during boot. The default value is 2 seconds.

Indicates whether an adapter has one or more devices attached that are shared with one or more other adapters and therefore, the Symbios SCSI BIOS should avoid SCSI bus resets as much as possible. This option allows the user to enable an adapter to join a cluster of adapters without doing any SCSI bus resets. This is a requirement for Microsoft Cluster Server. The default value is No with an alternate option of Yes.

Termination Control Configuration

[Auto / Off]

If available, thefieldindicates whether an adapterhas automatic termination control. Auto means that the adapter automatically determines whether it should enable or disable its termination. Auto is the default state unless termination is done manually, in which case, the configuration is Off.

<Restore Defaults> Executable Press Enter to obtain default settings.

The Symbios SCSI BIOS Configuration Utility Menus 3-9

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3.2.4 Device Properties Menu

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The Device Properties Menu allows you to view and update individual device settings for an adapter. Changing a setting for the host device (for example, SCSI ID 7) changes the setting for all devices. The number of fields displayed requires the menu to scroll left/right in order to display the information. When accessing this menu online, use the Home/End keys to scroll to columns currently not displayed. The scroll indicator on the bottom of the menu shows where the cursor is relative to the first and last columns. The example for the Device Properties Menu is split (Figure 3.3 and Figure 3.4) due to the width of its multiple fields/columns.

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Figure 3.3 Device Properties Menu (Left Half)

Symbios PCI SCSI Configuration Utility Version PCI 4.15.00

Device Properties SYM53C895A 0 A0

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SCSI ID

Device Identifier Sync

Rate

Data Width

ScanIDScan

LUNs>0

Disconnect

0 Quantum Viking 4.5 [20] [16] [Yes] [Yes] [O n] 1 Quantum Viking 4.5 [20] [16] [Yes] [Yes] [O n] 2 Quantum Viking 4.5 [20] [16] [Yes] [Yes] [O n] 3 Quantum Viking 4.5 [20] [16] [Yes] [Yes] [O n] 4 Quantum Viking 4.5 [20] [16] [Yes] [Yes] [O n] 5 Quantum Viking 4.5 [20] [16] [Yes] [Yes] [O n] 6 - [20] [16] [Yes] [Yes] [On] 7 SYM53C895A [20] [16] [Yes] [Yes] [On] 8 - [20] [16] [Yes] [Yes] [On] 9 - [20] [16] [Yes] [Yes] [On] 10 - [20] [16] [Yes] [Yes] [On] 11 - [20] [16] [Yes] [Yes] [On] 12 - [20] [16] [Yes] [Yes] [On] 13 - [20] [16] [Yes] [Yes] [On] 14 - [20] [16] [Yes] [Yes] [On] 15 - [20] [16] [Yes] [Yes] [On]

F1 = Help ↑↓→← = Select Item -/+ = [Change Item] Esc = Abort/Exit Home/End = Scroll Enter = Execute <Item>

The Symbios SCSI BIOS Configuration Utility Menus 3-11

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Figure 3.4 Device Properties Menu (Right Half)

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Symbios PCI SCSI Configuration Utility Version PCI 4.15.00

Device Properties SYM53C895A 0 A0

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SCSIIDDevice Identifier SCSI

Timeout

Queue Tags

Boot Choice

Format Verify Restore

Defaults 0 Quantum Viking 4.5 <10> [On] [No] [Format] [Verif y] <Defau lts> 1 Quantum Viking 4.5 <10> [On] [No] [Format] [Verif y] <Defau lts> 2 Quantum Viking 4.5 <10> [On] [No] [Format] [Verif y] <Defau lts> 3 Quantum Viking 4.5 <10> [On] [No] [Format] [Verif y] <Defau lts> 4 Quantum Viking 4.5 <10> [On] [No] [Format] [Verif y] <Defau lts> 5 Quantum Viking 4.5 <10> [On] [No] [Format] [Verif y] <Defau lts> 6 - <10> [On] [No] [Format] [Verify] <Default s> 7 SYM53C895A <10> [On] [No] [Format] [Verif y] <Defau lts> 8 - <10> [On] [No] [Format] [Verify] <Default s> 9 - <10> [On] [No] [Format] [Verify] <Default s> 10 - <10> [On] [No] [Format] [Verif y] <Defau lts> 11 - <10> [On] [No] [Format] [Verif y] <Defau lts> 12 - <10> [On] [No] [Format] [Verif y] <Defau lts> 13 - <10> [On] [No] [Format] [Verif y] <Defau lts> 14 - <10> [On] [No] [Format] [Verif y] <Defau lts> 15 - <10> [On] [No] [Format] [Verif y] <Defau lts>

F1 = Help ↑↓→← = Select Item -/+ = [Change Item] Esc = Abort/Exit Home/End = Scroll Enter = Execute <Item>

3-12 Configuring the SYM8953U Host Adapter

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Table 3.4 lists the fields and their descriptions.

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Table 3.4 Device Properties Fields and Descriptions

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Field Field Type

Description

[Value]

SCSI ID Information Device’s SCSI Identifier. Device Identifier Information Indicates the ASCII device identifier string, as extracted

from the device’s inquiry data.

Sync Rate Configuration

[0 / 5 / 10 / 20 / 40]

Indicates themaximum synchronousdata transfer ratein mega transfers per second.

Mega Xfers Data Width Data Width Synch per second = 8 bits = 16 bits Period (ns) 0 = Asynch 0 = Asynch 0 = Asynch 0 = Asynch

5 5 10 200 10 10 20 100 20 20 40 50 40 40 80 25

Data Width Configuration

Maximum data width in bits.

[8 / 16]

Scan ID Configuration

[Yes / No]

Indicates whether to scan for this SCSI identifier at boot time. Utilizing this setting allows you to ignore a device. This decreases boot time by disabling inquiry of unused SCSI identifiers. SetthisoptiontoNoifthereisadevicethatyoudonot want to be available to the system. Also, on a bus with only a few devices attached, the user can speed up boot time by changing this setting to No for all unused SCSI IDs.

Scan LUNs > 0 Configuration

[Yes / No]

The Symbios SCSI BIOS Configuration Utility Menus 3-13

Indicates whether to scan for LUNs greater than zero for a device. LUN 0 is alwaysqueried. This option should be used if a multi-LUN device responds to unoccupied LUNs or if it is desired to reduce the visibility of a multi-LUNdevicetoLUN0only. SetthisoptiontoNoifyouhaveproblemswithadevice that responds to all LUNs whether they are occupied or not. Also, if a SCSI device with multiple LUNs exists on your system but you do not want all of those LUNs to be available to the system, then set this option to No. This will limit the scan to LUN 0.

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Table 3.4 Device Properties Fields and Descriptions (Cont.)

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Field Field Type

[Value]

Disconnect Configuration

[On / Off]

SCSI Time-out Executable

[0–9999]

Queue Tags Configuration

[On / Off]

Boot Choice Configuration

[Yes / No]

Description

Indicates whether to allow a device to disconnect during SCSI operations. Some (usually newer) devices run faster with disconnect enabled, while some (usually older) devices run faster with disconnect disabled.

Indicates the maximum allowable time for completion of a SCSI operation in seconds. Since time-outs provide a safeguard that allows the system to recover should an operation fail, it is recommended that a value greater than zero be used. A value of zero allows unlimited time for an operation to completeandcould result in thesystem hanging (waiting forever) should an operation fail. Note: This field is executable and must be selected with the Enter key. You also input the new value with the number keys from the keyboard, not the number pad.

This field indicates whether to allow the use of queue tags for a device. Currently the BIOS does not use queue tags. This item specifies queue tag control to higher level device drivers.

Indicates whether this device can be selected as the boot device. This option is only applicable to devices attached to adapter number zero in the boot list on non-BBS systems. It provides primitive BBS flexibility to non-BBS systems.

Format Executable Allows low-level formatting on a disk drive, if enabled.

Low-level formatting will completely and irreversibly erase all data on the drive. To low level format a device, select the device from the menu and use the arrow keys to move the cursor to the Format column. Press Enter. Note: Formatting will default the drive to a 512-byte sector size even if the drive had previously been formatted to another sector size.

Verify Executable Allows verification of all sectors on a device and

reassigns defective Logical Block Addresses, if enabled. To verifyall sectors, select the devicefrom the menu and usethearrowkeystomovethecursortotheVerify column. Press Enter.

<Restore Defaults> Executable Press Enter to obtain default settings.

3-14 Configuring the SYM8953U Host Adapter

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3.2.5 Boot Adapter List Menu

The Boot Adapter List Menu specifies the order in which adapters boot when more than one Symbios adapter is in a system. Up to four of the total adapters in a system can be selected as bootable. This menu may also list additional adapters in your system that are not bootable. As many as 256 adapters can be listed. To control a Boot Volume, only one of the four “active” controllers can be used.

To select this menu:

1. Press F2 while on the Main Menu to move the cursor to the Optional Menu area.

2. Move the cursor to Boot Adapter List with the arrow keys.

3. Press Enter.

Adapters can be added or deleted using this menu. Use the arrow keys to move the cursor to the lower list, the adapter select list, to add or remove an adapter. To add an adapter to the boot list, press the Insert key while on the Boot Adapter List. Use the arrow keys to select the

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desired adapter and press Enter to add it to the end of the Boot Adapter List. To change the configuration of the adapter, use the arrow keys to move to the configuration you want to alter.

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To remove an adapter from the boot list, press the Delete key while on the desired adapter in the Boot Adapter List.

Note:

If a new device is added after this utility loads, it can only be seen in the adapter configuration section of this utility after a reboot. You must exit the utility and restart it for the new device to be seen by the Configuration Utility.

The Symbios SCSI BIOS Configuration Utility Menus 3-15

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Figure 3.5 provides an example of the Boot Adapter List Menu.

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Figure 3.5 Boot Adapter List Menu

Symbios PCI SCSI Configuration Utility Version PCI 4.15.00

Boot Adapter List Insert = Add an adapter Delete = Remove an adapter

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Adapter PCI

Bus

Dev/ Func

Boot Order

Current Status

Boot <SYM53C895A 0 98> [2] Off [On] <SYM53C896 0 88> [1] On [Off] <SYM53C896 0 58> [0] On [On

Hit Insert to select an adapter from this list. <SYM53C895A 0 98> <SYM53C896 0 88> <SYM53C896 0 58>

F1 = Help ↑↓→← = Select Item -/+ =[Change Item] Esc = Abort/Exit Home/End = Scroll Enter=Execute <Item>

3-16 Configuring the SYM8953U Host Adapter

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Table 3.5 lists the fields on this menu and their descriptions.

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Table 3.5 Boot Adapter List Fields and Descriptions

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Field Field Type

Description

[Value]

Adapter Information Indicates the specific SYM53C8XX Host Adapter. PCI Bus Information Indicates the PCI Bus number (range 0x00–0xFF,

0–255 decimal) assigned by the s ystem BIOS to an adapter.

Dev/Func Information Indicates the PCI Device/Function assigned by the

system BIOS to an adapter. An 8-bit value is mapped as follows: Bit#76543210 Bits [7:3]: Device (range 0x00–0x1F, 0–31 decimal) Bits [2:0]: Function (range 0–7)

Boot Order Configuration

[0 to 3]

Indicates the relative boot order of the listed adapter. The Symbios SCSI BIOS traverses up to four adapters, in the specified order, searching for bootable media.

Current Status Information Indicates whether an adapter in the boot list was

enabled during the most recent boot. Disabled adapters and their attached devices are ignored by the Symbios SCSI BIOS, although they are still visible to the configuration utility.

Next Boot Configuration

[On / Off]

Indicates whether to enable an adapter upon the next boot. The Symbios SCSI BIOS ignores disabled adapters and their attached devices although they are still visible to the configuration utility.

The Symbios SCSI BIOS Configuration Utility Menus 3-17

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3.2.6 Global Properties Menu

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The Global Properties Menu allows you to view display boot information and to set display and video modes. Figure 3.6 provides an example of the Global Properties Menu.

Figure 3.6 Global Properties Menu

Symbios PCI SCSI Configuration Utility Version PCI 4.15.00

Global Properties

Pause If Boot Alert Displayed [Yes] Boot Information Display Mode [Verbose] Video Mode [Color]

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F1 = Help ↑↓→← = Select Item -/+ =[Change Item]

Esc = Abort/Exit Home/End = Scroll Enter=Execute <Item>

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3-18 Configuring the SYM8953U Host Adapter

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Table 3.6 lists the fields on this menu and their descriptions.

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Table 3.6 Global Properties Fields and Descriptions

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Field Field Type

Description

[Value]

PauseWhenBoot Alert Displayed

Configuration [Yes / No]

Specifies a pause during the boot for user acknowledgement. The pause occurs after displaying an alert message. To continue after displaying a message, specify No. To wait for any key after displaying a message, specify Yes.

Boot Information Display Mode

Configuration [Terse / Verbose]

Specifies how much BIOS information displays during boot. To display minimum information, specify Terse mode. To display detailed information, specify Verbose mode.

Video Mode Configuration

[Color / Monochrome]

Specifies the default video mode for the SCSI BIOS Configuration Utility. The monochrome setting enhances readability on a monochrome monitor.

<Restore Defaults> Executable Press Enter to obtain default settings.

The Symbios SCSI BIOS Configuration Utility Menus 3-19

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3.2.7 Exit Menu

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The Exit menu for the Configuration Utilities is used for all five of the menus listed above. However , the available functionality is different for the Main Menu and the four subordinate menus. Figure 3.7 provides and example of the Exit menu.

Figure 3.7 Exit Menu

Symbios PCI SCSI Configuration Utility Version PCI 4.15.00

Boot property changes have been made

Cancel exit Exit the Configuration Utility Save changes and then exit this menu Discard changes and exit this menu

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If you are exiting Adapter Properties, Device Properties, Boot Adapter List, or Global Properties, the Exit menu gives you the following options:

Cancel exit This option returns you to the previous menu. Save changes and

exit this menu Discard changes

and exit this menu

This option implements any changes you made on the previous menu and returns you to the main menu.

This option restores the default settings and returns you to the main menu.

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3-20 Configuring the SYM8953U Host Adapter

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If you are exiting the Main Menu, the exit menu gives you the following

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options:

Cancel exit This returns you to the Main Menu.

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Exit the Configuration Utility

Important

: You must reboot in order for the changes you have made

This option exits the c onfiguration and returns you to the DOS prompt.

to take effect.

The Symbios SCSI BIOS Configuration Utility Menus 3-21

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3-22 Configuring the SYM8953U Host Adapter

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Appendix A Technical Specifications

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This section discusses the physical environment associated with the SYM8953U Host Adapter.It includes a mechanical drawing of this board, which is shown in Figure A.1. It also includes these topics:

• Section A.1, “Physical Environment,” page A-1

• Section A.2, “Operational Environment,” page A-3

A.1 Physical Environment

This section discusses the physical, electrical, thermal, and safety characteristics of the SYM8953U Host Adapter board. Additionally, this board is compliant with electromagnetic standards set by the FCC.

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A.1.1 Physical Characteristics

The dimensions of the SYM8953U Host Adapter board are 6.00 x 3.50 inches. PCI connection is made through edge connector J1.

Internal SCSI connection is made through the 68-pin HD connector J2. External SCSI connection is made through the 68-pin HD connector J3. The J3 connector extends external to the cabinet through a bracket attached to the board and the face of the connector. The bracket is a standard ISA type with a cutout to accommodate connector J3.

The J4 connector is for connecting to the computer’s drive activity LED. It is a 4 pin one row right angle header wired in parallel with the on-board SCSI Activity LED.

The component height on the top and bottom of the board conforms to the PCI Specification Revision 2.2.

Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter A-1

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Figure A.1 SYM8953U Mechanical Drawing

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152.4 mm (6.0 inches)

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U12 U7

CT10

CT3

CR3

TERM

SYM8953U

CT6

CT9

88.990 mm (3.5 inches)

CT2

SCSI LVD/SE

1998

Note:

• J1: PCI 32-bit, universal board connector.

• J2: 68-pin HD connector.

• J3: 68-pin HD connector.

• J4: 4 pin low density conne ctor.

U13

SCSI LVD/SE

J1T

+3.3 V

VR1

Activity

CT5

CT7

CT8

U10

CR1

CR2

5V_A

GND_A

5V_B

GND_B

CT1

SIG2_A

SIG1_A

6.533’’

U11

SIG2_B SIG1_B

ICT

CT4

A.1.2 Electrical Characteristics

The SYM8953U maximum power requirement, including SCSI TERMPWR (termination power), under normal operation is as follows:

Table A.1 Maximum Power Requirements

+5VDC ± 5% 1.5 A Over the operating range 0 °Cto55°C

Under abnormal conditions such as a short on SCSI TERMPWR, + 5 V current may be higher. At temperatures of at least 25 4 A is sustained no longer than 30 seconds before the self-resetting TERMPWR short circuit protection device (F1) opens.

A-2 Technical Specifications

°Cacurrentof

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The PCI PRSNT1/ and PRSNT2/ pins are set to indicate a 7.5 W maximum configuration.

A.1.3 Thermal, Atmospheric Characteristics

The board is designed to operate in an environment defined by the following parameters:

• Temperature range: 0 °Cto55°C (dry bulb)

• Relative humidity range: 5% to 90% noncondensing

• Maximum dew point temperature: 32 °C

• Storage Temperature: − 45 °Cto+105°C (dry bulb)

A.1.4 Electromagnetic Compliance

The board is designed and implemented to minimize electromagnetic emissions, susceptibility, and the effects of electromagnetic discharge. The board meets the requirements of FCC Class B and CISPR 22 limits and is marked with the FCC Class B Declaration of Conformity Symbol. It also carries the CE mark.

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A.1.5 Safety Characteristics

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The bare board meets or exceeds the requirements of UL flammability rating 94 V0. The bare board is also marked with the supplier’s name or trademark, type, and UL flammability rating. Since this board is installed in a PCI bus slot, all voltages are below the SELV 42.4 V limit.

A.2 Operational Environment

The SYM8953U host adapter is designed for use in PCI computer systems. SDMS operates the board, but the design of the board does not prevent the use of other software.

Operational Environment A-3

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A.2.1 The PCI Interface

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The PCI interface operates as a 32-bit DMA bus master. The connection is made through edge connector J1, which provides connections on both the front and back of the board. The signal definitions and pin numbers conform to the PCI Local Bus Specification Revision 2.2 standard.

Table A.2 and Table A.3 show the signal assignments.

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Note:

The + 3.3 V pins are tied together and decoupled with high frequency bypass capacitors to ground. No current from these 3.3 V pins is used on the board. The board derives power from the + 5 V pins, directly and through a 3.3 V voltage regulator. The PCI V

pins are used to

I/O

differentiate between a 5 V or a 3.3 V PCI environment.

A-4 Technical Specifications

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Table A.2 PCI Connector J1 (Front)

Signal Name Pin Signal Name Pin Signal Name Pin

−= 12 V 1 GND 22 SERR/ 42 TCK 2 AD27 23 + 3.3 V 43 GND 3 AD25 24 C_BE1/ 44 TDO 4 + 3.3 V 25 AD14 45 + 5 V 5 C_BE3/ 26 GND 46 + 5 V 6 AD23 27 AD12 47 INTB/ 7 GND 28 AD10 48 INTD/ 8 AD21 29 GND 49 GND (PRSNT1/) 9 AD19 30 KEYWAY 50 RESERVED 10 + 3.3 V 31 KEYWAY 51 GND (PRSNT2/) 11 AD17 32 AD08 52

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KEYWAY 12 C_BE2/ 33 AD07 53 KEYWAY 13 GND 34 + 3.3 V 54 RESERVED 14 IRDY/ 35 AD05 55 GND 15 + 3.3 V 36 AD03 56 CLK 16 DEVSEL/ 37 GND 57 GND 17 GND 38 AD01 58 REQ/ 18 VI/O 19 PERR/ 40

LOCK/ 39 VI/O 59

ACK64/ 60 AD31 20 + 3.3 V 41 + 5 V 61 AD29 21 + 5 V 62

1. Highlighted signals are not connected.

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Operational Environment A-5

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Table A.3 PCI Connector J1 (Back)

Signal Name Pin Signal Name Pin Signal Name Pin

TRST/ 1 AD28 22 GND 42 +12V 2 AD26 23 PAR 43 TMS 3 GND 24 AD15 44 TDI 4 AD24 25 + 3.3 V 45 + 5 V 5 IDSEL 26 AD13 46 INTA/ 6 + 3.3 V 27 AD11 47 INTC/ 7 AD22 28 GND 48 + 5 V 8 AD20 29 AD09 49 RESERVED 9 GND 30 KEYWAY 50 + 5 V 10 AD18 31 KEYWAY 51 RESERVED 11 AD16 32 C_BE0/ 52

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KEYWAY 12 + 3.3 V 33 + 3.3 V 53 KEYWAY 13 FRAME/ 34 AD06 54 RESERVED 14 GND 35 AD04 55 RST/ 15 TRDY/ 36 GND 56 VI/O 16 GND 37 AD02 57 GNT/ 17 STOP/ 38 AD00 58 GND 18 + 3.3 V 39 VI/O 59 RESERVED 19 SDONE 40 REQ64/ 60 AD30 20

SBO/ 41 + 5 V 61

+3.3V 21 +5V 62

1. Highlighted signals are not connected.

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A-6 Technical Specifications

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A.2.2 The SCSI Interface

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The SCSI interface conforms to ANSI X 3T10.11/1142. The SCSI interface operates as 16-bit, synchronous or asynchronous,

SE or LVD, and supports SCSI-3 protocols and 8-bit and 16-bit arbitration. The interface is made through connectors J2 and J3.

Active SE or LVD SCSI termination is provided automatically. SCSI termination power is supplied by the board.

Connector J2 is a 68-pin HD right angle header used for internal connections.

Connector J3 is a 68-pin HD right angle connector that protrudes through the back panel bracket and is used for external connections.

Table A.4 and Table A.5 show the signal assignments for J2 and J3

respectively.

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Operational Environment A-7

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Table A.4 Internal SCSI Connector J2

Signal Name Pin Signal Name Pin

SD12+ 1 SD12− 35 SD13+ 2 SD13− 36 SD14+ 3 SD14− 37 SD15+ 4 SD15− 38 SDP1+ 5 SDP1− 39 SD00+ 6 SD00− 40 SD01+ 7 SD01− 41 SD02+ 8 SD02− 42 SD03+ 9 SD03− 43 SD04+ 10 SD04− 44 SD05+ 11 SD05− 45 SD06+ 12 SD06− 46 SD07+ 13 SD07− 47 SDP0+ 14 SDP0− 48 GND 15 GND 49 DIFFSENS 16 J2_SENS 50

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TERMPWR 17 TERMPWR 51 TERMPWR 18 TERMPWR 52 N/C 19 N/C 53 GND 20 GND 54 SATN+ 21 SATN− 55 GND 22 GND 56 SBSY+ 23 SBSY− 57 SACK+ 24 SACK− 58 SRST+ 25 SRST− 59 SMSG+ 26 SMSG− 60 SSEL+ 27 SSEL− 61 SCD+ 28 SCD− 62 SREQ+ 29 SREQ− 63 SIO+ 30 SIO− 64 SD08+ 31 SD08− 65 SD09+ 32 SD09− 66 SD10+ 33 SD10− 67 SD11+ 34 SD11− 68

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A-8 Technical Specifications

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Table A.5 External SCSI Connector J3

Signal Name Pin Signal Name Pin

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TERMPWR 18 TERMPWR 52 N/C 19 N/C 53 GND 20 GND 54 SATN+ 21 SATN− 55 GND 22 GND 56 SBSY+ 23 SBSY− 57 SACK+ 24 SACK− 58 SRST+ 25 SRST− 59 SMSG+ 26 SMSG− 60 SSEL+ 27 SSEL− 61 SCD+ 28 SCD− 62 SREQ+ 29 SREQ− 63 SIO+ 30 SIO− 64 SD08+ 31 SD08− 65 SD09+ 32 SD09− 66 SD10+ 33 SD10− 67 SD11+ 34 SD11− 68

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Note: When operated in the SE mode, all signals with the + suffix are clamped

to ground.

Operational Environment A-9

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A.2.3 On-Board LED

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On-board LEDs are used to indicate the status of the SCSI bus. The SCSI Activity LED lights when the SCSI bus is transferring

information.

A.2.4 The SCSI Busy LED

The SCSI Activity LED interface on the SYM8953U is a four-wire arrangement that allows the user to connect a LED harness to the board. The buffered GPIO0_FETCH line (maximum output low voltage 0.4 V and minimum output low current 16 mA) is pulled low to complete the circuit when a harness with a LED is attached. The SCSI Busy LED connector is J4.

Table A.6 LED Connector J4

Signal Name Pin

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LED+ 1 LED− 2 LED− 3 LED+ 4

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A-10 Technical Specifications

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Appendix B Glossary of Terms and Abbreviations

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Active Termination

Address A specific location in memory, designated either numerically or by a

The electrical connection required at each end of the SCSI bus, composed of active voltage regulation and a set of termination resistors. Ultra and Ultra2 SCSI require active termination.

symbolic name.

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Asynchronous Data Transfer

BIOS Basic Input/Output System. Software that provides basic read/write

Bit A binary digit. The smallest unit of information a computer uses. The

Bus A collection of unbroken signal lines across which information is

Bus Mastering A high-performance way to transfer data. The host adapter controls the

Byte A unit of information consisting of eight bits. CISPR A special international committee on radio interference (Committee,

One of the ways data is transferred over the SCSI bus. It is slower than synchronous data transfer.

capability. Usually kept as firmware (ROM based). The system BIOS on the mainboard of a computer is used to boot and control the system. The SCSI BIOS on your host adapter acts as an extension of the system BIOS.

value of a bit (0 or 1) represents a two-way choice, such as on or off, true or false, and so on.

transmitted from one part of a computer system to another. Connections to the bus are made using taps on the lines.

transfer of data directly to and from system memory without interrupting the computer’s microprocessor. This is the fastest way for multitasking operating systems to transfer data.

International and Special, for Protection in Radio).

Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter B-1

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Configuration Refers to the way a computer is set up; the combined hardware

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components (computer, monitor, keyboard, and peripheral devices) that make up a computer system; or the software settings that allow the hardware components to communicate with each other.

CPU Central Processing Unit. The “brain” of the computer that performs the

actual computations. The term Microprocessor Unit (MPU) is also used.

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DMA Bus Master

A feature that allows a peripheral to control the flow of data to and from system memory by blocks, as opposed to PIO (Programmed I/O) where the processor is in control and the flow is by byte.

Device Driver A program that allows a microprocessor (through the operating system)

to direct the operation of a peripheral device.

Differential SCSI A hardware configuration for connecting SCSI devices. It uses a pair of

lines for each signal transfer (as opposed to Single-Ended SCSI which references each SCSI signal to a common ground).

Dword A double word is a group of four consecutive bytes or characters that are

stored, addressed, transmitted, and operated on as a unit. The lower two address bits of the least significant byte must equal zero in order to be dword aligned.

EEPROM Electronically Erasable Programmable Read Only Memory. A memory

chip typically used to store configuration information. See NVRAM.

EISA Extended Industry Standard Architecture. An extension of the 16-bit ISA

bus standard. It allows devices to perform 32-bit data transfers.

External SCSI Device

A SCSI device installed outside the computer cabinet. These devices are connected in a continuous chain using specific types of shielded cables.

Fast-20 The SCSI Trade Association (STA) supports the use of “Ultra SCSI” over

the term “Fast-20”. Please See Ultra SCSI.

Fast-40 The SCSI Trade Association (ST A) supports the use of “Ultra2 SCSI”

over the term “Fast-40”. Please see Ultra2 SCSI.

Fast SCSI A standard for SCSI data transfers. It allows a transfer rate of up to 10

Mbytes/s over an 8-bit SCSI bus and up to 20 Mbytes/s over a 16-bit SCSI bus.

FCC Federal Communications Commission.

B-2 Glossary of Terms and Abbreviations

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File A named collection of information stored on a disk.

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Firmware Software that is permanently stored in ROM. Therefore, it can be

accessed during boot time.

Hard Disk A disk made of metal and permanently sealed into a drive cartridge. A

hard disk can store very large amounts of information.

Host The computer system in which a SCSI host adapter is installed. It uses

the SCSI host adapter to transfer information to and from devices attached to the SCSI bus.

Host Adapter A circuit board or integrated circuit that provides a SCSI bus connection

to the computer system.

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Internal SCSI Device

A SCSI device installed inside the computer cabinet. These devices are connected in a continuous chain using an unshielded ribbon cable.

IRQ Interrupt Request Channel. A path through which a device can get the

immediate attention of the computer’s CPU. The PCI bus assigns an IRQ path for each SCSI host adapter.

ISA Industry Standard Architecture. A type of computer bus used in most

PCs.Itallowsdevicestosendandreceivedataupto16bitsatatime.

Kbyte Kilobyte. A measure of computer storage equal to 1024 bytes. Local Bus A way to connect peripherals directly to computer memory. It bypasses

the slower ISA and EISA buses. PCI is a local bus standard.

Logical Unit A subdivision, either logical or physical, of a SCSI device (actually the

place for the device on the SCSI bus). Most devices have only one logical unit, but up to eight are allowed for each of the eight possible devices on aSCSIbus.

LUN Logical Unit Number. An identifier, zero to seven, for a logical unit. LVD Link Low Voltage Differential link allows greater Ultra2 SCSI device

connectability and longer SCSI cables. LVD Link lowers the amplitude of noise reflections and allows higher transmission frequencies. Detailed information may be found in Section 1.3.4, “LVD Link Technology”.

Mainboard A large circuit board that holds RAM, ROM, the microprocessor, custom

integrated circuits, and other components that make a computer work. It also has expansion slots for host adapters and other expansion boards.

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Main Memory The part of a computer’s memory which is directly accessible by the CPU

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(usually synonymous with RAM).

Mbyte Megabyte. A measure of computer storage equal to 1024 kilobytes. Motherboard See Mainboard. In some countries, the term Motherboard is not

appropriate.

Multitasking The executing of more than one command at the same time. This allows

programs to operate in parallel.

Multithreading The simultaneous accessing of data by more than one SCSI device. This

increases the data throughput.

NVRAM NonVolatile Random Access Memory. Actually an EEPROM

(Electronically Erasable Read Only Memory chip) used to store configuration information. See EEPROM.

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Operating System

A program that organizes the internal activities of the computer and its peripheral devices. An operating system performs basic tasks such as moving data to and from devices, and managing inf ormation in memory. It also provides the user interface.

Parity Checking A way to verify the accuracy of data transmitted over the SCSI bus. The

parity bit in the transfer is used to make the sum of all the 1 bits either odd or even (for odd or even parity). If the sum is not correct, the information may be retransmitted or an error message may appear.

Passive Termination

The electrical connection required at each end of the SCSI bus, composed of a set of resistors. It improves the integrity of bus signals.

PCI Peripheral Component Interconnect. A local bus specification that allows

connection of peripherals directly to computer memory. It bypasses the slower ISA and EISA buses.

Peripheral Devices

A piece of hardware (such as a video monitor, disk drive, printer, or CD-ROM) used with a computer and under the computer’s control. SCSI peripherals are controlled through a SCSI host adapter.

Pin-1 Orientation

The alignment of pin 1 on a SCSI cable connector and the pin-1 position on the SCSI connector into which it is inserted. External SCSI cables are always keyed to insure proper alignment, but internal SCSI ribbon cables sometimes are not keyed.

B-4 Glossary of Terms and Abbreviations

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PIO Programmed Input/Output. A way the CPU can transfer data to and from

memory using the computer’s I/O ports. PIO is usually faster than DMA, but requires CPU time.

Port Address Also Port Number. The address through which commands are sent to a

host adapter board. This address is assigned by the PCI bus.

Port Number See Port Address. Queue Tags A way to keep track of multiple commands that allow for increased

throughput on the SCSI bus.

RAM Random Access Memory. The computer’s primary working memory in

which program instructions and data are stored and are accessible to the CPU. Information can be written to and read from RAM. The contents of RAM are lost when the computer is turned off.

RISC Core LSI Logic SCSI chips contain a RISC (Reduced Instruction Set

Computer) processor, programmed through microcode scripts.

ROM Read Only Memory. Memory from which information can be read but not

changed. The contents of ROM are not erased when the computer is

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turned off.

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SCAM SCSI Configured AutoMatically. A method to automatically allocate SCSI

IDs using software when SCAM compliant SCSI devices are attached.

SCSI Small Computer System Interface. A specification for a high-performance

peripheral bus and command set. The original standard is referred to as SCSI-1.

SCSI-2 The current SCSI specification which adds features to the original

SCSI-1 standard.

SCSI-3 The SCSI specification which adds features to the SCSI-2 standard. SCSI Bus A host adapter and one or more SCSI peripherals connected by cables

in a linear chain configuration. The host adapter may exist anywhere on the chain, allowing connection of both internal and external SCSI devices. A system may have more than one SCSI bus by using multiple host adapters.

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SCSI Device Any device that conforms to the SCSI standard and is attached to the

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SCSI bus by a SCSI cable. This includes SCSI host adapters and SCSI peripherals.

SCSI ID A way to uniquely identify each SCSI device on the SCSI bus. Each SCSI

bus has eight available SCSI IDs numbered 0 through 7 (or 0 through 15 for Wide SCSI). The host adapter usually gets the highest ID (7 or 15) giving it priority to control the bus.

SCSI SCRIPTS A SCSI programming language that works with the SCRIPTS processor

that is embedded on the SYM53C8XX device. These SCRIPTS reside in in host computer system memory.

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SCRIPTS Processor

The SCRIPTS processor allows users to fine tune SCSI operations with regard to unique vendor commands or new SCSI specifications. The SCRIPTS processor fetches SCRIPTS instructions from system memory to control operation of the SYM53C8XX device.

SDMS SCSI Device Management System. A LSI Logic software product that

manages SCSI system I/O.

Single-Ended SCSI

A hardware specification for connecting SCSI devices. It references each SCSI signal to a common ground. This is the most common method (as opposed to differential SCSI which uses a separate ground for each signal).

STA SCSI Tr ade Association. A group of companies that cooperate to

promote SCSI parallel interface technology as a viable mainstream I/O interconnect for commercial computing.

Synchronous Data Transfer

One of the ways data is transferred over the SCSI bus. T ransfers are clocked with fixed frequency pulses. This is faster than asynchronous data transfer . Synchronous data transfers are negotiated between the SCSI host adapter and each SCSI device.

System BIOS Controls the low-level POST (Power On Self Test), and basic operation

of the CPU and computer system.

Ultra SCSI A standard for SCSI data transfers. It allows a transfer rate of up to

20 Mbytes/s over an 8-bit SCSI bus and up to 40 Mbytes/s over a 16-bit SCSI bus. SCSI T rade Association (STA) supports using the term “Ultra SCSI”overtheolderterm“Fast-20”.

B-6 Glossary of Terms and Abbreviations

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Ultra2 SCSI A standard for SCSI data transfers. It allows a transfer rate of up to

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40 Mbytes/s over an 8-bit SCSI bus, and up to 80 Mbytes/s over a 16-bit SCSI bus. SCSI Trade Association (STA) supports using the term “Ultra2 SCSI” over the term “Fast-40”.

VCCI Voluntary Control Council for Interference. VDE Verband Deucher Elektroniker (Association of German Electrical

Engineers).

Virtual Memory Space on a hard disk that can be used as if it were RAM. Wide SCSI A SCSI-2 feature allowing 16-bit or 32-bit transfers on the SCSI bus. This

dramatically increases the transfer rate over the standard 8-bit SCSI bus.

Wide Ultra SCSI The SCSI Trade Association (ST A) term for SCSI bus width 16-bits, SCSI

bus speed maximum data rate 40 Mbytes/s.

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Wide Ultra2 SCSI

The SCSI Trade Association (STA) term for SCSI bus width 16-bits, SCSI bus speed maximum data rate 80 Mbytes/s.

Word A two byte (or 16-bit) unit of information.

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B-8 Glossary of Terms and Abbreviations

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Index

duplication of SCSI IDs 2-22

edge connector 2-5 Electrical Characteristics A-2 Electromagnetic Compliance A-3 Erroneous Termination 2-18 External SCSI B us Connections 2-15 External SCSI Connector J3 A-9 External SCSI Device 2-16 External SCSI Device Termination 2-20

FDISK/MBR command

using 3-9 Features 1-2 format

description 3-14 front panel LED 2-14

global properties menu 3-18, 3-20 GPIO0_FETCH line A-10

Hardware Connections 2-5 host S CSI ID

description 3-8

Inserting the Host Adapter 2-4, 2-6 Installation Procedure 2-3 installation procedure check list 2-24 Internal SCSI Bus Connections 2-10 Internal SCSI Device Connection 2-11 Internal SCSI Dev ice Termination 2-19 Internal SCSI Ribbon Cable 2-10

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adapter

description 3-5 adapter properties menu 3-6 alternate CHS mapping

description 3-9

Board Characteristics 1-3 boot adapter list menu 3-16 boot choice

description 3-14 boot information display mode

description 3-19 boot order

description 3-6 Bus configurations 2-18

chained connection 2-12, 2-17 CHS mapping

description 3-9 Configuration Utility 3-1 Connecting the SCSI Peripherals 2-7 current s tatus

description 3-17

data width

description 3-13 Detailed Installation Procedure 2-3 device identifier

description 3-13 device pr operties menu 3-11 to 3-12 Device Selections Menu 3-10 device/function

description 3-6 disconnect

description 3-14

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Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter IX-1

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IRQ

interrupt request line 3-6

LED c able 2-14 LED Connector 2-14 LVD Link Technology 1-5

Main Menu Display 3-4 menus

device pr operties 3-11 to 3-12

global properties 3-18 Multiple Internal SCSI Devices 2-13

next boot

description 3-17 NVM

nonvolatile memory 3-6

Operational Environment A-3

PCI bus

description 3-5 PCI Connector J1 (Back) A-6 PCI Connector J1 (Front) A-5 PCI Interf a ce 1-2, 1-4, A-4 peripheral device SCSI IDs 2-22 peripheral device terminators 2-18 Physical Characteristics A-1 Physical Environment A-1 port number

description 3-6

queue tags

description 3-14

removable media support

description 3-8 ribbon cable 2-7

Safety Characteristics A-3 scan ID

description 3-13

scan LUNs

description 3-13 SCSI BIOS Configuration Utility 3-1 SCSI bus connections 2-7 SCSI bus s can orde r

description 3-8 SCSI bus termination 2-18 SCSI Busy LED A-10 SCSI Device Management System (SDMS) 1-1 SCSI ID

description 3-13 SCSI IDs 2-22 SCSI Interface 1-2, 1-4, A-7 SCSI LED Connector 2-14 SCSI parity

description 3-8 SCSI Peripherals 2-7 SCSI Ribbon Cable 2-10 SCSI time-out

description 3-14 secondary cluster server

description 3-9 Setting SCSI IDs 2-22 spinup delay

description 3-9 Starting the SCSI BIOS Configuration Utility 3-1 sync rate

description 3-13

Termination 2-18 Termination (erroneous) 2-18 termination control

description 3-9 Thermal, Atmospheric Characteristics A-3

Ultra SCSI 2-7 Ultra2 SCSI 1-5

verify

description 3-14 video mode

description 3-19

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IX-2 Index

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Fax Title Department Mail Stop Company Name Street City, State, Zip

Customer Feedback

U.S. Distributors by State

A. E. Avnet Electronics

http://www.hh.avnet.com

B. M. Bell Microproducts,

Inc. (for HAB’s)

http://www.bellmicro.com

I. E. Insight Electronics

http://www.insight-electronics.com

W.E. Wyle Electronics

http://www.wyle.com

Alabama

Daphne I. E. Tel: 334.626.6190 Huntsville A. E. Tel: 256.837.8700 I. E. Tel: 256.830.1222 W.E. Tel: 800.964.9953

Alaska

A. E. Tel: 800.332.8638

Arkansas

W.E. Tel: 972.235.9953

Arizona

Phoenix A. E. Tel: 480.736.7000 B. M. Tel: 602.267.9551 W.E. Tel: 800.528.4040 Tempe I. E. Tel: 480.829.1800 Tucson A. E. Tel: 520.742.0515

California

Agoura Hills B. M. Tel: 818.865.0266 Irvine A. E. Tel: 949.789.4100 B. M. Tel: 949.470.2900 I. E. Tel: 949.727.3291 W.E. Tel: 800.626.9953 Los Angeles A. E. Tel: 818.594.0404 W.E. Tel: 800.288.9953 Sacramento A. E. Tel: 916.632.4500 W.E. Tel: 800.627.9953 San Diego A. E. Tel: 858.385.7500 B. M. Tel: 858.597.3010 I. E. Tel: 800.677.6011 W.E. Tel: 800.829.9953 San Jose A. E. Tel: 408.435.3500 B. M. Tel: 408.436.0881 I. E. Tel: 408.952.7000 Santa Clara W.E. Tel: 800.866.9953 Woodland Hills A. E. Tel: 818.594.0404 Westlake Village I. E. Tel: 818.707.2101

Colorado

Denver A. E. Tel: 303.790.1662 B. M. Tel: 303.846.3065 W. E. Tel: 800.933.9953 Englewood I. E. Tel: 303.649.1800

Connecticut

Cheshire A. E. Tel: 203.271.5700 I. E. Tel: 203.272.5843 Wallingford W. E. Tel: 800.605.9953

Delaware

North/South A. E. Tel: 800.526.4812

Tel: 800.638.5988 B. M. Tel: 302.328.8968 W. E. Tel: 856.439.9110

Florida

Altamonte Springs B. M. Tel: 407.682.1199 I. E. Tel: 407.834.6310 Boca Raton I. E. Tel: 561.997.2540 Clearwater I. E. Tel: 727.524.8850 Fort Lauderdale A. E. Tel: 954.484.5482 W. E. Tel: 800.568.9953 Miami B. M. Tel: 305.477.6406 Orlando A. E. Tel: 407.657.3300 W. E. Tel: 407.740.7450 Tampa W. E. Tel: 800.395.9953 St. Petersburg A. E. Tel: 727.507.5000

Georgia

Atlanta A. E. Tel: 770.623.4400 B. M. Tel: 770.980.4922 W. E. Tel: 800.876.9953 Duluth I. E. Tel: 678.584.0812

Hawaii

A. E. Tel: 800.851.2282

Idaho

A. E. Tel: 801.365.3800 W. E. Tel: 801.974.9953

Illinois

North/South A. E. Tel: 847.797.7300

Tel: 314.291.5350 Chicago B. M. Tel: 847.413.8530 W. E. Tel: 800.853.9953 Schaumburg I. E. Tel: 847.885.9700

Indiana

Fort Wayne I. E. Tel: 219.436.4250 W. E. Tel: 888.358.9953 Indianapolis A. E. Tel: 317.575.3500

Iowa

W. E. Tel: 612.853.2280 Cedar Rapids A. E. Tel: 319.393.0033

Kansas

W. E. Tel: 303.457.9953 Kansas City A. E. Tel: 913.663.7900 Lenexa I. E. Tel: 913.492.0408

Kentucky

W. E. Tel: 937.436.9953 Central/Northern/ Western A. E. Tel: 800.984.9503

Tel: 800.767.0329 Tel: 800.829.0146

Louisiana

W. E. Tel: 713.854.9953 North/South A. E. Tel: 800.231.0253

Tel: 800.231.5575

Maine

A. E. Tel: 800.272.9255 W. E. Tel: 781.271.9953

Maryland

Baltimore A. E. Tel: 410.720.3400 W. E. Tel: 800.863.9953 Columbia B. M. Tel: 800.673.7461 I. E. Tel: 410.381.3131

Massachusetts

Boston A. E. Tel: 978.532.9808 W. E. Tel: 800.444.9953 Burlingtonr I. E. Tel: 781.270.9400 Marlborough B. M. Tel: 508.480.9099 Woburn B. M. Tel: 781.933.9010

Michigan

Brighton I. E. Tel: 810.229.7710 Detroit A. E. Tel: 734.416.5800 W. E. Tel: 888.318.9953

Minnesota

Champlin B. M. Tel: 800.557.2566 Eden Prairie B. M. Tel: 800.255.1469 Minneapolis A. E. Tel: 612.346.3000 W. E. Tel: 800.860.9953 St. Louis Park I. E. Tel: 612.525.9999

Mississippi

A. E. Tel: 800.633.2918 W. E. Tel: 256.830.1119

Missouri

W. E. Tel: 630.620.0969 St. Louis A. E. Tel: 314.291.5350 I. E. Tel: 314.872.2182

Montana

A. E. Tel: 800.526.1741 W. E. Tel: 801.974.9953

Nebraska

A. E. Tel: 800.332.4375 W. E. Tel: 303.457.9953

Nevada

Las Vegas A. E. Tel: 800.528.8471 W. E. Tel: 702.765.7117

New Hampshire

A. E. Tel: 800.272.9255 W. E. Tel: 781.271.9953

New Jersey

North/South A. E. Tel: 201.515.1641

Tel: 609.222.6400 Mt. L aurel I. E. Tel: 609.222.9566 Pine Brook W. E. Tel: 800.862.9953 Parsippany I. E. Tel: 973.299.4425 Wayne W. E. Tel: 973.237.9010

New Mexico

W. E. Tel: 480.804.7000 Albuquerque A. E. Tel: 505.293.5119

U.S. Distributors by State (Continued)

New York

Hauppauge I. E. Tel: 516.761.0960 Long Island A. E. Tel: 516.434.7400 W.E. Tel: 800.861.9953 Rochester A. E. Tel: 716.475.9130 I. E. Tel: 716.242.7790 W.E. Tel: 800.319.9953 Smithtown B. M. Tel: 800.543.2008 Syracuse A. E. Tel: 315.449.4927

North Carolina

Raleigh A. E. Tel: 919.859.9159 I. E. Tel: 919.873.9922 W.E. Tel: 800.560.9953

North Dakota

A. E. Tel: 800.829.0116 W.E. Tel: 612.853.2280

Ohio

Cleveland A. E. Tel: 216.498.1100 W.E. Tel: 800.763.9953 Dayton A. E. Tel: 614.888.3313 I. E. Tel: 937.253.7501 W.E. Tel: 800.575.9953 Strongsville B. M. Tel: 440.238.0404 Valley View I. E. Tel: 216.520.4333

Oklahoma

W.E. Tel: 972.235.9953 Tulsa A. E. Tel: 918.459.6000 I. E. Tel: 918.665.4664

Oregon

Beavertonr B. M. Tel: 503.524.0787 I. E. Tel: 503.644.3300 Portland A. E. Tel: 503.526.6200 W.E. Tel: 800.879.9953

Pennsylvania

Mercer I. E. Tel: 412.662.2707 Pittsburgh A. E. Tel: 412.281.4150 W.E. Tel: 440.248.9996 Philadelphia A. E. Tel: 800.526.4812 B. M. Tel: 215.741.4080 W.E. Tel: 800.871.9953

Rhode Island

A. E. 800.272.9255 W.E. Tel: 781.271.9953

South Carolina

A. E. Tel: 919.872.0712 W. E. Tel: 919.469.1502

South D akota

A. E. Tel: 800.829.0116 W. E. Tel: 612.853.2280

Tennessee

W. E. Tel: 256.830.1119 East/West A. E. Tel: 800.241.8182

Tel: 800.633.2918

Texas

Austin A. E. Tel: 512.219.3700 B. M. Tel: 512.258.0725 I. E. Tel: 512.719.3090 W. E. Tel: 800.365.9953 Dallas A. E. Tel: 214.553.4300 B. M. Tel: 972.783.4191 W. E. Tel: 800.955.9953 El Paso A. E. Tel: 800.526.9238 Houston A. E. Tel: 713.781.6100 B. M. Tel: 713.917.0663 W. E. Tel: 800.888.9953 Richardson I. E. Tel: 972.783.0800 Rio Grande Valley A. E. Tel: 210.412.2047 Stafford I. E. Tel: 281.277.8200

Utah

Centerville B. M. Tel: 801.295.3900 Murray I. E. Tel: 801.288.9001 Salt LakeCity A. E. Tel: 801.365.3800 W. E. Tel: 800.477.9953

Vermont

A. E. Tel: 800.272.9255 W. E. Tel: 716.334.5970

Virginia

A. E. Tel: 800.638.5988 W. E. Tel: 301.604.8488

Washington

Kirkland I. E. Tel: 425.820.8100 Seattle A. E. Tel: 425.882.7000 W. E. Tel: 800.248.9953

West Virginia

A. E. Tel: 800.638.5988

Wisconsin

Milwaukee A. E. Tel: 414.513.1500 W. E. Tel: 800.867.9953 Wauwatosa I. E. Tel: 414.258.5338

Wyoming

A. E. Tel: 800.332.9326 W. E. Tel: 801.974.9953

Direct Sales Representatives by State (Component and HAB)

E. A. Earle Associates E. L. Electrodyne - UT GRP Group 2000 I. S. Infinity Sales, Inc. ION ION Associates, Inc. R. A. Rathsburg Associ-

ates, Inc.

SGY Synergy Associates,

Inc.

Arizona

Tempe E. A. Tel: 480.921.3305

California

Calabasas I. S. Tel: 818.880.6480 Irvine I. S. Tel: 714.833.0300 San Diego E. A. Tel: 619.278.5441

Illinois

Elmhurst R. A. Tel: 630.516.8400

Indiana

Cicero R. A. Tel: 317.984.8608 Ligonier R. A. Tel: 219.894.3184 Plainfield R. A. Tel: 317.838.0360

Massachusetts

Burlington SGY Tel:781.238.0870

Michigan

Byron Center R. A. Tel: 616.554.1460 Good Rich R. A. Tel: 810.636.6060 Novi R. A. Tel: 810.615.4000

North Carolina

Cary GRP Tel: 919.481.1530

Ohio

Columbus R. A. Tel: 614.457.2242 Dayton R. A. Tel: 513.291.4001 Independence R. A. Tel: 216.447.8825

Pennsylvania

Somerset R. A. Tel: 814.445.6976

Texas

Austin ION Tel: 512.794.9006 Arlington ION Tel: 817.695.8000 Houston ION Tel: 281.376.2000

Utah

Salt LakeCity E. L. Tel: 801.264.8050

Wisconsin

Muskego R. A. Tel: 414.679.8250 Saukville R. A. Tel: 414.268.1152

Sales Offices and Design Resource Centers

LSI Logic Corporation CorporateHeadquarters Tel: 408.433.8000 Fax: 408.433.8989

NORTH AMERICA California

Costa Mesa -Mint Technology Tel: 949.752.6468 Fax: 949.752.6868

Irvine

♦Tel: 949.809.4600

Fax: 949.809.4444 Pleasanton Design Center

Tel: 925.730.8800 Fax: 925.730.8700

San Diego Tel: 858.467.6981 Fax: 858.496.0548

Silicon Valley

♦Tel: 408.433.8000

Fax: 408.954.3353 Wireless Design Center

Tel: 858.350.5560 Fax: 858.350.0171

Colorado

Boulder

♦Tel: 303.447.3800

Fax: 303.541.0641 Colorado Springs

Tel: 719.533.7000 Fax: 719.533.7020

Fort Collins Tel: 970.223.5100 Fax: 970.206.5549

Florida

Boca Raton Tel: 561.989.3236 Fax: 561.989.3237

Georgia

Alpharetta Tel: 770.753.6146 Fax: 770.753.6147

Illinois

Oakbrook Terrace Tel: 630.954.2234 Fax: 630.954.2235

Kentucky

Bowling Green Tel: 270.793.0010 Fax: 270.793.0040

Maryland

Bethesda Tel: 301.897.5800 Fax:301.897.8389

Massachusetts

Waltham

♦Tel: 781.890.0180

Fax:781.890.6158 Burlington - Mint Technology

Tel: 781.685.3800 Fax:781.685.3801

Minnesota

Minneapolis

♦Tel: 612.921.8300

Fax:612.921.8399

New Jersey

Red Bank Tel: 732.933.2656 Fax:732.933.2643

Cherry Hill - Mint Technology Tel: 609.489.5530 Fax:609.489.5531

New York

Fairport Tel: 716.218.0020 Fax:716.218.9010

North Carolina

Raleigh Tel: 919.785.4520 Fax:919.783.8909

Oregon

Beaverton Tel: 503.645.0589 Fax:503.645.6612

Texas

Austin Tel: 512.388.7294 Fax:512.388.4171

Plano

♦Tel: 972.244.5000

Fax:972.244.5001 Houston

Tel: 281.379.7800 Fax:281.379.7818

Canada Ontario

Ottawa

♦Tel: 613.592.1263

Fax:613.592.3253

INTERNATIONAL France

Paris

LSI Logic S.A. Immeuble Europa

♦Tel: 33.1.34.63.13.13

Fax: 33.1.34.63.13.19

Germany

Munich

LSI Logic GmbH

♦Tel: 49.89.4.58.33.0

Fax:49.89.4.58.33.108 Stuttgart

Tel: 49.711.13.96.90 Fax: 49.711.86.61.428

Italy

Milano

LSI Logic S.P.A.

♦Tel: 39.039.687371

Fax: 39.039.6057867

Japan

Tokyo

LSI Logic K.K.

♦Tel:81.3.5463.7821

Fax: 81.3.5463.7820 Osaka

♦Tel: 81.6.947.5281

Fax: 81.6.947.5287

Korea

Seoul

LSI Logic Corporation of Korea Ltd

Tel: 82.2.528.3400 Fax: 82.2.528.2250

The Netherlands

Eindhoven

LSI Logic Europe Ltd

Tel: 31.40.265.3580 Fax: 31.40.296.2109

Singapore

LSI Logic Pte Ltd

Tel: 65.334.9061 Fax: 65.334.4749

Tel: 65.835.5040 Fax: 65.732.5047

Sweden

Stockholm

LSI Logic AB

♦Tel: 46.8.444.15.00

Fax: 46.8.750.66.47

Taiwan

Taipe i

LSILogicAsia,Inc. Taiwan Branch

Tel: 886.2.2718.7828 Fax:886.2.2718.8869

United Kingdom

Bracknell

LSI Logic Europe Ltd

♦Tel: 44.1344.426544

Fax: 44.1344.481039

♦Sales Officeswith

Design Resource Centers

International Distributors

Australia

New South Wales

ReptechnicPty Ltd

♦Tel: 612.9953.9844

Fax: 612.9953.9683

Belgium Acal nv/sa

Tel: 32.2.7205983 Fax: 32.2.7251014

China

Beijing

LSI Logic International Services Inc.

Tel: 86.10.6804.2534 Fax: 86.10.6804.2521

France

Rungis Cedex

Azzurri Technology France

Tel: 33.1.41806310 Fax: 33.1.41730340

Germany

Haar

EBV Elektronik

Tel: 49.89.4600980 Fax: 49.89.46009840

Munich

Avnet Emg GmbH

Tel: 49.89.45110102 Fax:49.89.42.27.75

Wuennenberg-Haaren

Peacock AG

Tel: 49.2957.79.1692 Fax: 49.2957.79.9341

Hong Kong

AVT Industrial Ltd

Tel: 852.2428.0008 Fax: 852.2401.2105

EastEle

Tel: 852.2798.8860 Fax: 852.2305.0640

India

Bangalore

Spike Technologies India Private Ltd

♦Tel: 91.80.664.5530

Fax: 91.80.664.9748

Israel

Tel Aviv

Eastronics Ltd

Tel: 972.3.6458777 Fax: 972.3.6458666

Japan

Tokyo

Global Electronics Corporation

Tel: 81.3.3260.1411 Fax: 81.3.3260.7100 Technical Center Tel: 81.471.43.8200

Yokohama-City

Macnica Corporation

Tel: 81.45.939.6140 Fax: 81.45.939.6141

The Netherlands

Eindhoven

Acal Nederland b.v.

Tel: 31.40.2.502602 Fax: 31.40.2.510255

Switzerland

Brugg

LSI Logic Sulzer AG

Tel: 41.32.3743232 Fax: 41.32.3743233

Taiwan

Taipei

Avnet-Mercuries Corporation,Ltd

Tel: 886.2.2516.7303 Fax:886.2.2505.7391

Lumax International Corporation,Ltd

Tel: 886.2.2788.3656 Fax:886.2.2788.3568

Prospect Technology Corporation,Ltd

Tel: 886.2.2721.9533 Fax:886.2.2773.3756

Serial Semiconductor Corporation,Ltd

Tel: 886.2.2579.5858 Fax:886.2.2570.3123

United Kingdom

Maidenhead

Azzurri Technology Ltd

Tel: 44.1628.826826 Fax:44.1628.829730

Swindon

EBV Elektronik

Tel: 44.1793.849933 Fax:44.1793.859555

♦Sales Officeswith

Design Resource Centers

LSI SYM8953U User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Preface

1.1 General Description

1.2 Features

1.2.1 PCI Interface

1.2.2 SCSI Interface

1.2.3 Board Characteristics

1.3 Interface Descriptions

1.3.1 The PCI Interface

1.3.2 The SCSI Interface

1.3.3 Ultra2 SCSI Technology

1.3.4 LVD Link Technology

1.3.5 On-Board LED

2.1 Quick Installation Procedure

2.2 Detailed Installation Procedure

2.2.1 Before You Start

2.2.2 Inserting the Host Adapter

2.2.3 Connecting the SCSI Peripherals

Table 2.1 SCSI Bus Widths and Speeds

Table 2.2 SCSI Bus Lengths

2.2.4 Making Internal SCSI Bus Connections

2.2.5 Making External SCSI Bus Connections

2.2.6 SCSI Bus Termination

2.2.7 Setting SCSI IDs

Table 2.3 SCSI ID Record

2.3 Completing the Installation

3.1 Overview of the SCSI BIOS Configuration Utility

3.1.1 Starting the Configuration Utility

3.1.2 Exiting the SCSI BIOS Configuration Utility

3.2 The Symbios SCSI BIOS Configuration Utility Menus

3.2.1 Using the Menus

Table 3.1 Configuration Commands

3.2.2 Main Menu

3.2.3 Adapter Properties Menu

3.2.4 Device Properties Menu

3.2.5 Boot Adapter List Menu

3.2.6 Global Properties Menu

Table 3.6 Global Properties Fields and Descriptions

3.2.7 Exit Menu

A.1 Physical Environment

A.1.1 Physical Characteristics

A.1.2 Electrical Characteristics

A.1.4 Electromagnetic Compliance

A.1.5 Safety Characteristics

A.2 Operational Environment

A.2.1 The PCI Interface

A.2.2 The SCSI Interface

A.2.3 On-Board LED

A.2.4 The SCSI Busy LED

Index

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