Adaptec AVA-2822 User manual

AVA-2820/2822/2825 User’s Guide
Stock Number: 510609-00, Rev. B Page: Front Cover
Print Spec Number: 492728-00
Current Date: 1/30/95 ECN Date: 1/31/95
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User’s GuideUser’s Guide
AVA-2820/2822/2825
VL-to-Fast SCSI and VL-to-EIDE Host Adapters
with SCSISelect

AVA-2820/2822/2825 User’s Guide
Stock Number: 510609-00, Rev. B Page: Back Cover
Print Spec Number: 492728-00
Current Date: 1/30/95 ECN Date: 1/31/95
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Adaptec, Inc.
691 South Milpitas Boulevard
Milpitas, CA 95035
Copyright © 1994-1995, Adaptec, Inc.
All rights reserved. Adaptec and the
Adaptec logo are trademarks of Adaptec,
Inc. which may be registered in some
jurisdictions.
Printed in Singapore
STOCK NO.: 510609-00, Rev. B KL 1/95

AVA-2820/2822/2825 User’s Guide
Stock Number: 510609-00, Rev. B Page: i
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▼ ▼ ▼ ▼ AVA-2820/2822/2825
VL-to-Fast SCSI and VL-to-EIDE Host Adapters
with SCSISelect
User’s Guide

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AVA-2820/2822/2825 User’s Guide
Stock Number: 510609-00, Rev. B Page: ii
Print Spec Number: 492728-00
Current Date: 1/30/95 ECN Date: 1/31/95
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Copyright
Copyright © 1994-1995 Adaptec, Inc. All rights reserved. No part of this publication
may be reproduced, stored in a retrieval system, or transmitted in any form or by any
means, electronic, mechanical, photocopying, recording or otherwise, without the
prior written consent of Adaptec, Inc., 691 South Milpitas Blvd., Milpitas, CA 95035.
Trademarks
Adaptec, the Adaptec logo, AVA, EZ-SCSI, FLEXI-Driver, and SCSISelect are trade-
marks of Adaptec, Inc. which may be registered in some jurisdictions.
Disk Manager is a registered trademark of Ontrack Computer Systems, Inc.
Floptical is a registered trademark of Insite Peripherals.
Photo CD is a trademark of Eastman Kodak Company.
All other trademarks are owned by their respective owners.
Changes
The material in this document is for information only and is subject to change with-
out notice. While reasonable efforts have been made in the preparation of this docu-
ment to assure its accuracy, Adaptec, Inc. assumes no liability resulting from errors or
omissions in this document, or from the use of the information contained herein.
Adaptec reserves the right to make changes in the product design without reservation
and without notification to its users.
Adaptec Technical Support and Services
If you have questions about installing or using the host adapter, check this user’s
guide first—you will find answers to most of your questions here. If you need further
assistance, please contact us. We offer the following support and information services:
■For Adaptec technical support (answers to technical questions, information about
the Adaptec BBS, and access to the Interactive Fax system), call 800-959-SCSI
(7274) or 408-945-2550, 24 hours a day, 7 days a week. To speak with a product
support representative, call 408-934-SCSI (7274), M–F: 6:00 a.m. to 5:00 p.m.,
Pacific Time.
■If you need help with Disk Manager software, call Ontrack technical support at
612-937-2121, M–F: 8:00 a.m. to 5:00 p.m., Central Time. You can call the Ontrack
BBS at 612-937-0860 (from the U.S. only). Information is also available via
CompuServe (72662,33) and the Internet ([e-mail]).
■For Adaptec sales information, call 800-959-SCSI (7274) or 408-945-2550, M–F:
6:00 a.m. to 5:00 p.m., Pacific Time.
■The Adaptec Electronic Bulletin Board Service (BBS) provides information on soft-
ware upgrades, new releases, answers to common questions, and other topics. The
BBS is available 24 hours a day, 7 days a week, at 408-945-7727;
1200/2400/9600/14,400/28,800 baud, 8 data bits, 1 stop bit, no parity.
■The Adaptec Interactive Fax system provides answers to common questions and
current information about Adaptec products and services. The Adaptec Interac-
tive Fax system is available 23 hours a day, 7 days a week. The Fax system is out of
service 1 hour each day. You can call this service directly at 408-957-7150.
■To order Adaptec software and SCSI cables, call 800-442-SCSI (7274) or
408-957-SCSI (7274), M–F: 6:00 a.m. to 5:00 p.m., Pacific Time.

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AVA-2820/2822/2825 User’s Guide
Stock Number: 510609-00, Rev. B Page: iii
Print Spec Number: 492728-00
Current Date: 1/30/95 ECN Date: 1/31/95
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■To request additional documentation for Adaptec products, call 800-934-2766 or
510-732-3829, M–F: 6:00 a.m. to 5:00 p.m., Pacific Time.
FCC Compliance Statement
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 residential installations. This equipment generates, uses, and can
radiate radio frequency energy, and if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation.
If this equipment does cause interference to radio or television equipment reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the inter-
ference by one or more of the following measures:
• Reorient or relocate the receiving antenna
• Move the equipment away from the receiver
• Plug the equipment into an outlet on a circuit different from that to which the receiver is
powered
• If necessary, the user should consult the dealer or an experienced radio/television technician
for additional suggestions
CAUTION: Only equipment certified to comply with Class B (computer input/output devices,
terminals, printers, etc.) should be attached to this equipment, and must have shielded interface
cables.
Finally, any changes or modifications to the equipment by the user not expressly approved by the
grantee or manufacturer could void the user’s authority to operate such equipment.
Each host adapter is equipped with an FCC compliance label which shows only the FCC identifi-
cation number. The full text of the associated label follows:
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.

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Stock Number: 510609-00, Rev. B Page: iv
Print Spec Number: 492728-00
Current Date: 1/30/95 ECN Date: 1/31/95
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v
Table of Contents
Preface
Inside This Document xi
Conventions xii
Advisories xiii
1 Introduction
About This Chapter 1-1
Overview 1-3
Features 1-4
Compatibility 1-4
Configuration Flexibility 1-4
Standard Device Support 1-5
Additional Support Through Adaptec EZ-SCSI
Lite 1-5
Standard IDE or EIDE Support Through Disk
Manager and FLEXI-Driver (AVA-2825 only) 1-6
Fast Data Transfer Rates 1-6
Advanced Fast SCSI-2 Implementation 1-7
Host Adapter Performance 1-7
System Requirements 1-8
Product Specifications 1-8
Physical Dimensions 1-8
Power Requirements 1-8
Operating Temperature Requirements 1-8
2 Installation
About This Chapter 2-1
Installation Overview 2-3
Host Adapter Layout 2-4
Default Settings 2-6
Setting Jumpers and Switches 2-6
SCSI I/O Port Address 2-6
Floppy Controller (AVA-2822/2825 Only) 2-7

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AVA-2820/2822/2825 User’s Guide
Stock Number: 510609-00, Rev. B Page: vi
Print Spec Number: 492728-00
Current Date: 1/30/95 ECN Date: 1/31/95
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Standard IDE or EIDE Controller (AVA-2825
Only) 2-7
Host Adapter BIOS Address 2-8
Installing the Host Adapter 2-8
Connecting SCSI Devices 2-10
Maximum SCSI Cable Lengths 2-10
Connecting Internal SCSI Devices 2-11
Connecting External SCSI Devices 2-13
Terminating the SCSI Bus 2-15
Internal and External SCSI Devices 2-15
Internal SCSI Devices Only 2-16
External SCSI Devices Only 2-17
Setting SCSI IDs 2-17
Connecting Floppy Drives (AVA-2822/2825
Only) 2-18
Connecting Standard IDE or EIDE Drives (AVA-2825
Only) 2-21
Connecting the SCSI/Standard IDE or EIDE Activity
LED 2-24
Reassembling and Configuring the Computer 2-25
3 SCSI Configuration with SCSISelect
About This Chapter 3-1
SCSISelect Overview 3-3
Default Values 3-3
Running SCSISelect 3-4
Configure/View Host Adapter Settings 3-5
Host Adapter Interrupt (IRQ) Channel 3-6
Host Adapter SCSI ID 3-6
SCSI Parity Checking 3-6
Host Adapter SCSI Termination 3-6
SCSI Device Configuration 3-7
Advanced Configuration Options 3-10
SCSI Disk Utilities 3-12
Format Disk 3-13
Verify Disk Media 3-13

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Table of Contents
AVA-2820/2822/2825 User’s Guide
Stock Number: 510609-00, Rev. B Page: vii
Print Spec Number: 492728-00
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4 Standard IDE or EIDE Configuration
(AVA-2825 Only)
About This Chapter 4-1
Standard IDE and EIDE Overview 4-3
Configuring the Computer’s CMOS Setup 4-4
Using Disk Manager Software with Large Standard
IDE or EIDE Drives 4-4
Installing FLEXI-Driver Software 4-6
A Troubleshooting
About This Appendix A-1
SCSI Troubleshooting Checklist A-3
SCSI Problems and Solutions A-4
Host Adapter Conflicts A-6
BIOS Startup Messages A-6
Standard IDE or EIDE Problems and Solutions A-8
Hardware A-8
Software and Performance Problems A-9
Windows A-11
B Large SCSI Disk Drive Support
About This Appendix B-1
Extended BIOS Translation B-3
Using Extended BIOS Translation B-3
With SCSI Disk Drives Only B-3
With MS-DOS 5.0 and Above B-3
With Mixed Partition Drives B-4
Using fdisk B-4
Questions and Answers About Extended BIOS
Translation B-4

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C Floptical Drive Support
About This Appendix C-1
Floptical and Floppy Device Support C-3
Floptical Installation C-3
Floppy Device Drive Assignment C-4
VHD Format C-4
Glossary
Index

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ix
Figure
List of Figures
2-1 AVA-2820 Layout 2-4
2-2 AVA-2822 Layout 2-4
2-3 AVA-2825 Layout 2-5
2-4 VL-Bus Slot Diagram 2-9
2-5 Connecting the SCSI Ribbon Cable to the Host
Adapter 2-11
2-6 Connecting the SCSIRibbon Cable to an Internal SCSI
Device 2-12
2-7 Connecting Subsequent Internal SCSI Devices 2-12
2-8 Connecting the External SCSI Cable to the Host
Adapter 2-13
2-9 Connecting the External SCSI Cable to an External
SCSI Device 2-14
2-10 Connecting Multiple External SCSI Devices 2-14
2-11 Termination Configuration with Internal and
External SCSI Devices 2-16
2-12 Termination Configuration with Internal SCSI
Devices Only 2-16
2-13 Termination Configuration with External SCSI
Devices Only 2-17
2-14 Connecting the Floppy Ribbon Cable to the Host
Adapter 2-19
2-15 Connecting the Floppy Ribbon Cable to the First
Floppy Drive 2-20
2-16 Connecting a Second Floppy Drive 2-20
2-17 Connecting the Standard IDE or EIDE Ribbon Cable
to the Host Adapter 2-22
2-18 Connecting the Standard IDE or EIDE Ribbon Cable
to the First Standard IDE or EIDE Drive 2-23

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Figure
2-19 Connecting a Second Standard IDE or EIDE
Drive 2-24
2-20 SCSI/Standard IDE or EIDE LED Connector 2-25
3-1 BIOS Banner 3-4
3-2 SCSISelect Options Menu 3-4
3-3 Configure/View Host Adapter Settings Screen 3-5
3-4 Host Adapter SCSI Termination Selection 3-6
3-5 SCSI Device Configuration Screen 3-7
3-6 Advanced Configuration Options Screen 3-10
3-7 SCSI Disk Utilities Screen 3-12

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xi
Preface
Inside This Document
This document provides information on how to
install and configure Adaptec®AVA™-2820,
AVA-2822, and AVA-2825 host adapters in 486 (and
above) ISA VL-Bus computers. In this document,
these host adapters are referred to collectively as the
AVA-2820/2822/2825.
Chapter 1 Introduction
provides general information about and lists the fea-
tures of the AVA-2820/2822/2825 host adapters.
Chapter 2 Installation
has the information needed to install the host adapter,
SCSI devices, floppy devices, and standard IDE or
EIDE devices.
Chapter 3 SCSI Configuration with SCSISelect
describes the SCSISelect™configuration utility and
how to use it to configure your host adapter and SCSI
devices. The chapter also describes SCSISelect format-
ting and verifying utilities.
Chapter 4 Standard IDE or EIDE Configuration
(AVA-2825 Only)
describes how to configure your standard IDE or
EIDE drives for use with your AVA-2825 host adapter
and computer.
AppendixA Troubleshooting
has information to assist you in troubleshooting
problems that may occur during installation and
configuration.

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AppendixB Large SCSI Disk Drive Support
describes Adaptec’s extended BIOS translation fea-
ture, which allows you to support SCSI disk drives up
to 8 Gigabytes (GBytes) in size.
AppendixC Floptical Drive Support
has information about installing and using Floptical®
drives.
Conventions
The following typographic conventions are used in
this document.
bold
Used for keystrokes (… press the Enter key …).
Helvetica
Used for operator entry that must be typed exactly as
shown (… device=c:aspi2dos.sys …) and for mes-
sages on the screen (… Enter Password …).
Helvetica Italics
Used as a place holder for text you must determine
and type in (… enter
nn for number …). Also used for
program and file names that appear in body text
(… the
autoexec.bat file …).
Italics
Used for emphasis (… is only supported …) and for
document references (… refer to Chapter 1,
Introduction…).
Hexadecimal Numbers
Are followed by an ‘h’, e.g., 330h.
End Mark
The ❐symbol marks the end of a chapter or other
section.

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Advisories
Advisories are quick notes that stress an important
point or warn of a potential hazard to you or your
system. This document uses three kinds of
advisories:
Note: Text set off in this way presents remind-
ers, tips, or suggestions that may make it eas-
ier for you to install, configure, and use your
host adapter.
Caution: Failure to observe this kind of advi-
sory could result in loss of data or damage to
your system and installed devices.
WARNING: Failure to observe this kind of
advisory could result in personal injury.
Use caution when handling any electrical equipment.
Advisories in this document can only cover the proce-
dures contained here, and not all situations may have
been addressed. Adaptec does not claim to have
included every condition or situation that might
require a Caution or Warning. You must refer to the
documentation for your computer and peripheral
equipment when you are installing equipment or
changing its configuration.
❒

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1Introduction
About This Chapter
Read this chapter to find out
■An overview of the AVA-2820/2822/2825
host adapters
■The features of the AVA-2820/2822/2825
■Information on Adaptec’s EZ-SCSI Lite soft-
ware that provides driver support for most
SCSI devices and makes driver installation
easier than ever before

AVA-2820/2822/2825 User’s Guide
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1-3
Introduction
AVA-2820/2822/2825 User’s Guide
Stock Number: 510609-00, Rev. B Page: 1-3
Print Spec Number: 492728-00
Current Date: 1/30/95 ECN Date: 1/31/95
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▼ ▼ ▼ ▼
Overview
Adaptec has combined the power of the VESA local bus (VL-Bus)
and Adaptec’s SCSI technology to give you a potent combination of
I/O performance and connectivity for the DOS/Windows environ-
ment. Adaptec offers the following host adapters for 486 (and
above) ISA VL-Bus computers:
■AVA™-2820 VL-to-Fast SCSI
■AVA-2822 VL-to-Fast SCSI with floppy support
■AVA-2825 VL-to-Fast SCSI and VL-to-EIDE with floppy
support
Computer systems with a local bus, such as VL-Bus, take advantage
of a wider, faster data pipeline between your computer’s CPU and
peripheral devices. The local bus connects directly to the computer’s
CPU bus. If the CPU runs at 33 MHz, so does the local bus, keeping
right up with the CPU.
The AVA-2820/2822/2825 supports up to seven SCSI devices via
internal and external 50-pin SCSI connectors. The AVA-2822/2825
onboard floppy controller supports two floppy drives (including
2.88 MByte) and two additional floppy tape drives.
The AVA-2825 also gives you the ability to connect up to two stan-
dard IDE or EIDE (Enhanced IDE) disk drives. Two software pro-
grams are included to help you use your IDE/EIDE drives more
effectively. The Ontrack Disk Manager®partitioning utility enables
you to access disk space above 528 MBytes on large IDE/EIDE
drives. FLEXI-Driver™software enables 32-bit data transfers on the
VL-Bus and supports 32-bit disk accessing in Windows.
FLEXI-Driver also increases EIDE disk drive performance by auto-
matically optimizing data transfer rates. See the FLEXI-Driver and
Ontrack Disk Manager IDE/EIDE Hard Disk Software Installation Guide
for more information.
The AVA-2820/2822/2825 features the BIOS-resident Adaptec
SCSISelect configuration utility. SCSISelect controls certain SCSI

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AVA-2820/2822/2825 User’s Guide
AVA-2820/2822/2825 User’s Guide
Stock Number: 510609-00, Rev. B Page: 1-4
Print Spec Number: 492728-00
Current Date: 1/30/95 ECN Date: 1/31/95
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features and minimizes the need to handle jumpers while installing
the board or adding peripherals.
Adaptec EZ-SCSITM Lite is a menu-driven software package that
installs drivers and configures your DOS/Windows system and
peripherals automatically. The
aspi2dos ASPI manager enables opti-
mal performance of SCSI devices in DOS and Windows. EZ-SCSI
Lite allows your computer to access up to seven SCSI devices and
has many features that make it easy to connect SCSI devices.
Note: AVA-2820/2822/2825 host adapters are sold with sup-
port for DOS and Windows only. However, due to our
extensive relationships with other operating system compa-
nies, many Adaptec products are recognized by other oper-
ating systems.
Features
Compatibility
■VESA local bus (VL-Bus) standards
■DOS, Windows, third-party software, and SCSI-2 devices
■Boot capability from SCSI hard disk devices through onboard
BIOS
■Standard IDE or EIDE drives, PIO Modes 0, 3, and 4 connected
to the AVA-2825, through FLEXI-Driver software
Configuration Flexibility
■One internal 50-pin SCSI connector for standard 8-bit internal
SCSI devices
■One external high-density 50-pin SCSI connector for standard
8-bit external SCSI devices
■One internal 40-pin standard IDE or EIDE connector for stan-
dard IDE or EIDE drives (AVA-2825 only)
■One internal 34-pin floppy connector for standard floppy
drives (AVA-2822/2825 only)