Adaptec AVA-2822 User Manual
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Adaptec AVA-2822 User Manual

Adaptec AVA-2822 User Manual

Vl-to-fast scsi and vl-to-eide host adapters with scsiselect
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AVA-2820/2822/2825
VL-to-Fast SCSI and VL-to-EIDE Host Adapters
with SCSISelect
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AVA-2820/2822/2825 User's Guide
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Stock Number: 510609-00, Rev. B
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Print Spec Number: 492728-00
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Current Date: 1/30/95
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User's Guide
User's Guide
Page: Front Cover
ECN Date: 1/31/95
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Summary of Contents for Adaptec AVA-2822

  • Page 1 AVA-2820/2822/2825 VL-to-Fast SCSI and VL-to-EIDE Host Adapters with SCSISelect AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA User’s Guide...
  • Page 2 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 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide...
  • Page 3 AVA-2820/2822/2825 VL-to-Fast SCSI and VL-to-EIDE Host Adapters AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA...
  • Page 4 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.
  • Page 5 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.
  • Page 6 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA Page: iv ECN Date: 1/31/95 AAAA AAAA AAAA AAAA AAAA AAAA...

  • Page 7: Table Of Contents

    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 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95...
  • Page 8 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...
  • Page 9 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...
  • Page 10 AVA-2820/2822/2825 User’s Guide 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 viii AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA...

  • Page 11: List Of Figures

    List of Figures Figure AVA-2820 Layout 2-4 AVA-2822 Layout 2-4 AVA-2825 Layout 2-5 VL-Bus Slot Diagram 2-9 Connecting the SCSI Ribbon Cable to the Host Adapter 2-11 Connecting the SCSI Ribbon Cable to an Internal SCSI Device 2-12 Connecting Subsequent Internal SCSI Devices 2-12...
  • Page 12 AVA-2820/2822/2825 User’s Guide Figure 2-19 Connecting a Second Standard IDE or EIDE Drive 2-24 2-20 SCSI/Standard IDE or EIDE LED Connector 2-25 BIOS Banner 3-4 SCSISelect Options Menu 3-4 Configure/View Host Adapter Settings Screen 3-5 Host Adapter SCSI Termination Selection 3-6 SCSI Device Configuration Screen 3-7 Advanced Configuration Options Screen 3-10 SCSI Disk Utilities Screen 3-12...

  • Page 13: Preface

    Preface Inside This Document This document provides information on how to install and configure Adaptec 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.

  • Page 14: Conventions

    AVA-2820/2822/2825 User’s Guide Large SCSI Disk Drive Support Appendix B describes Adaptec’s extended BIOS translation fea- ture, which allows you to support SCSI disk drives up to 8 Gigabytes (GBytes) in size. Floptical Drive Support Appendix C has information about installing and using Floptical drives.

  • Page 15: Advisories

    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...
  • Page 16 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA Page: xiv ECN Date: 1/31/95 AAAA AAAA AAAA AAAA AAAA AAAA...

  • Page 17: Introduction

    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 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide...
  • Page 18 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA Page: 1-2 ECN Date: 1/31/95 AAAA AAAA AAAA AAAA AAAA AAAA...

  • Page 19: Overview

    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: ™...

  • Page 20: Features

    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...

  • Page 21: Standard Device Support

    Per computer, two physical standard IDE or EIDE drives on an installed AVA-2825 Two floppy drives (including 2.88 MByte) and two additional floppy tape drives (AVA-2822/2825 only) Additional Support Through Adaptec EZ-SCSI Lite Up to seven SCSI devices, simultaneously—including SCSI...

  • Page 22: Standard Ide Or Eide Support Through Disk Manager And Flexi-Driver (Ava-2825 Only)

    CD-ROM drives, check the hardware doc- umentation for those devices. If the device requires ASPI support, run Adaptec EZ-SCSI Lite to install an ASPI man- ager, then install any other software provided for the device. If the device is designed to interface directly with the host adapter, no ASPI manager is required.

  • Page 23: Advanced Fast Scsi-2 Implementation

    SCSI Up to 10.0 MBytes/sec synchronous Fast SCSI data rate Up to 5.0 MBytes/sec synchronous SCSI data rate Up to 3.0 MBytes/sec asynchronous SCSI data rate Standard IDE or EIDE (AVA-2825 only) 3.3 MBytes/sec standard IDE data transfer rate 5.0, 8.3, 11.1, or 16.0 MBytes/sec EIDE data transfer rate depending on PIO Mode (must have an EIDE drive that sup- ports the transfer rate, and FLEXI-Driver software must be installed)

  • Page 24: System Requirements

    Product Specifications The basic technical specifications of the host adapter are described below. If you need more detailed information, contact Adaptec’s Literature Department at the phone number listed in Adaptec Techni- cal Support and Services on page ii. Physical Dimensions Length: 9.75 inches (24.8 cm)

  • Page 25: Installation

    Installation About This Chapter Read this chapter to find out An overview of installing your host adapter and peripheral devices The default settings of the host adapter Jumper and switch settings and how to change them Instructions for installing the host adapter, SCSI devices, floppy drives, and standard IDE or EIDE drives AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

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    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA Page: 2-2 ECN Date: 1/31/95 AAAA AAAA AAAA AAAA AAAA AAAA...

  • Page 27: Installation Overview

    Terminating the SCSI bus—see Terminating the SCSI Bus on page 2-15 Setting SCSI IDs—see Setting SCSI IDs on page 2-17 Connecting floppy drives to the AVA-2822/2825—see Connecting Floppy Drives (AV A-2822/2825 Only) on page 2-18 Connecting standard IDE or EIDE drives to the AVA-2825—see...

  • Page 28: Host Adapter Layout

    Host Adapter Layout Figure 2-1 shows the major components on the AVA-2820. Figure 2-1. AVA-2820 Layout Figure 2-2 shows the major components on the AVA-2822. Figure 2-2. AVA-2822 Layout AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B...

  • Page 29: Figure

    Figure 2-3 shows the major components on the AVA-2825. Figure 2-3. AVA-2825 Layout The table below describes some components on the host adapters. AVA-2820 AVA-2822 AVA-2825 Component Description External LED Connector 40-pin Standard IDE or EIDE Connector 34-pin Floppy Connector...

  • Page 30: Default Settings

    Configuration with SCSISelect for other default settings available through SCSISelect. Features Default Setting Host Adapter BIOS Address DC000h Floppy Support Enabled—AVA-2822/2825 Disabled—AVA-2820 Primary SCSI I/O Port Address 340h-35Fh Primary SCSI Configuration I/O Port C344h, C378h, C37Ch Address Standard IDE or EIDE Support Enabled—AVA-2825...

  • Page 31: Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Ecn Date:

    Floppy Controller (AVA-2822/2825 Only) Switch sw1 on the switch block allows you to enable or disable the onboard floppy controller on the AVA-2822/2825. The floppy con- troller is enabled by default. Make sure only one floppy controller in the computer is enabled. See Connecting Floppy Drives (AV A-2822/2825 Only) on page 2-18 for more details.

  • Page 32: Host Adapter Bios Address

    AVA-2820/2822/2825 User’s Guide Host Adapter BIOS Address Switches sw3 and sw4 on the switch block allow you to select the BIOS address for the AVA-2820/2822/2825. The BIOS is perma- nently enabled. The BIOS address is set to DC000h and can be changed using switches sw3 and sw4 as specified below: Host Adapter BIOS Address C8000h...

  • Page 33: Vl-Bus Slot Diagram

    Locate an unused VL-Bus slot in your computer and remove the corresponding slot cover. VL-Bus Slots Figure 2-4. VL-Bus Slot Diagram Carefully remove the host adapter from the antistatic bag. Place the host adapter on top of the bag if you need to set it down.

  • Page 34: Connecting Scsi Devices

    Adaptec sells high-quality internal and external SCSI-2 cables. If your reseller does not stock these cables, call Adaptec directly at the number listed in the front of this document. The AVA-2820/2822/2825 has two cable connectors: one for internal SCSI devices and one for external SCSI devices.

  • Page 35: Connecting Internal Scsi Devices

    Connecting Internal SCSI Devices Internal SCSI devices use a 50-pin flat SCSI ribbon cable with a 50-pin header internal connector. The cable has connectors at each end and two connectors in the middle; this allows you to connect three internal SCSI devices. To connect four or more internal SCSI devices to a SCSI bus, obtain a 50-pin SCSI ribbon cable with enough connectors to accommodate all of your internal SCSI devices.

  • Page 36: Connecting The Scsi Ribbon Cable To An Internal Scsi Device

    AVA-2820/2822/2825 User’s Guide Attach the connector on the other end of the 50-pin SCSI rib- bon cable to the SCSI connector on the internal SCSI device. Pin 1 Internal SCSI Device Figure 2-6. Connecting the SCSI Ribbon Cable to an Internal SCSI Device To connect subsequent internal SCSI devices, plug the other connectors on the SCSI ribbon cable to the SCSI connectors on these devices.

  • Page 37: Connecting External Scsi Devices

    Connecting External SCSI Devices External SCSI devices are usually daisy-chained to the host adapter. This means that a simple two-ended cable runs from the host adapter to the connector on the first external SCSI device. A second connector on the back of the external SCSI device allows another cable to connect it with the second device in the chain.

  • Page 38: Connecting The External Scsi Cable To An External Scsi Device

    AVA-2820/2822/2825 User’s Guide Attach the other connector of the external cable to either one of the SCSI connectors on the external SCSI device. 50-pin External SCSI Cable Figure 2-9. Connecting the External SCSI Cable to an External SCSI Device To connect subsequent external SCSI devices, obtain additional external cables and daisy-chain each device to the previous device until all external SCSI devices have been connected.

  • Page 39: Terminating The Scsi Bus

    Terminating the SCSI Bus To reduce signal reflections on the SCSI bus, the first and last physi- cal SCSI devices (including the host adapter) must have a set of resistors called terminators either installed or enabled. Identify which two SCSI devices form the physical endpoints of your SCSI bus, then terminate these devices.

  • Page 40: Internal Scsi Devices Only

    AVA-2820/2822/2825 User’s Guide middle of the SCSI bus, and does not form a physical endpoint, host adapter termination must be disabled with SCSISelect. Termination Enabled Termination Termination Termination Figure 2-11. Termination Configuration with Internal and External SCSI Devices Internal SCSI Devices Only When only internal SCSI devices are connected to the host adapter and the host adapter is at the end of the SCSI bus, the last internal SCSI device and host adapter must be terminated.

  • Page 41: External Scsi Devices Only

    External SCSI Devices Only When only external SCSI devices are connected to the host adapter and the host adapter is at the end of the SCSI bus, the last external SCSI device and the host adapter must be terminated. Termination Termination Termination Enabled...

  • Page 42: Connecting Floppy Drives (Ava-2822/2825 Only)

    Make sure you disable one floppy controller, either the floppy controller in the system or on the AVA-2822/2825. If you disconnect the floppy drives from the floppy controller in your computer and connect them to the AVA-2822/2825, no modifications need to be made to your computer ’s CMOS setup .

  • Page 43: Connecting The Floppy Ribbon Cable To The Host

    To connect floppy drives, follow these steps: Attach the connector at one end of the 34-pin floppy ribbon cable to the floppy connector on the host adapter. Note: Maintain pin-1 orientation. Pin 1 of the floppy ribbon cable is designated by a colored stripe on one edge of the cable.

  • Page 44: Connecting The Floppy Ribbon Cable To The First Floppy Drive

    AVA-2820/2822/2825 User’s Guide Attach the connector at the other end of the 34-pin floppy rib- bon cable (the end with the twist in the cable) to the connector on the first floppy drive (Drive A). Maintain pin-1 orientation. Pin 1 1st Floppy Disk Drive Figure 2-15.

  • Page 45: Connecting Standard Ide Or Eide Drives (Ava-2825 Only)

    Connecting Standard IDE or EIDE Drives (AVA-2825 Only) Standard IDE or EIDE disk drives are connected to the host adapter by a 40-pin standard IDE or EIDE ribbon cable with a 40-pin header connector. Up to two physical standard IDE or EIDE disk drives can be connected to the host adapter.

  • Page 46: Connecting The Standard Ide Or Eide Ribbon Cable To The Host Adapter

    AVA-2820/2822/2825 User’s Guide usually done through setting jumpers or switches on the disk controller. See your computer ’s documentation for details. Note: If the IDE controller is on a separate board, you may be able to remove it if the board is not also used for floppy drive support, serial ports, etc.

  • Page 47: Connecting The Standard Ide Or Eide Ribbon Cable To The First Standard Ide Or Eide Drive

    Attach the connector at the other end of the 40-pin standard IDE or EIDE ribbon cable to the connector on the first standard IDE or EIDE drive. Maintain pin-1 orientation. Standard IDE or EIDE Disk Drive Figure 2-18. Connecting the Standard IDE or EIDE Ribbon Cable to the First Standard IDE or EIDE Drive To connect a second standard IDE or EIDE drive, plug the other connector of the standard IDE or EIDE ribbon cable to...

  • Page 48: Connecting The Scsi/Standard Ide Or Eide Activity Led

    AVA-2820/2822/2825 User’s Guide Second Standard IDE or EIDE Disk Drive Figure 2-19. Connecting a Second Standard IDE or EIDE Drive Connecting the SCSI/Standard IDE or EIDE Activity LED Most computers have an LED (Light Emitting Diode) on the front panel. This light shows hard disk drive activity. If you connect your computer’s LED cable to the host adapter, the LED lights to indicate SCSI bus activity on SCSI devices connected to AVA-2820/2822/ 2825.

  • Page 49: Reassembling And Configuring The Computer

    Note: On computers with a two-position LED cable, connect the LED cable connector to pins 1 and 2 of J1. Two-position LED Cable Pin 1 LED Connector Figure 2-20. SCSI/Standard IDE or EIDE LED Connector Reassembling and Configuring the Computer Before reassembling your computer, be sure that: –...
  • Page 50 AVA-2820/2822/2825 User’s Guide – If you are using the AVA-2822/2825 floppy controller Make sure that the floppy drive(s) is connected to the host adapter with the 34-pin floppy ribbon cable with proper pin-1 orientation. Make sure the floppy controller in the computer is disabled.

  • Page 51: Scsi Configuration With Scsiselect

    SCSI Configuration with SCSISelect About This Chapter Read this chapter to find out about Configuring your host adapter and SCSI devices with the SCSISelect utility Disk formatting and verifying utilities available in SCSISelect AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA...
  • Page 52 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA Page: 3-2 ECN Date: 1/31/95 AAAA AAAA AAAA AAAA AAAA AAAA...

  • Page 53: Scsiselect Overview

    SCSISelect Overview The AVA-2820/2822/2825 includes the onboard, menu-driven SCSISelect configuration utility, which allows you to change host adapter and SCSI bus settings without opening the computer or handling the host adapter. Use SCSISelect to change the default settings which may conflict with other devices (e.g., SCSI ID), perform low-level formatting on new SCSI disk devices, or verify SCSI disk media.

  • Page 54: Running Scsiselect

    Figure 3-1. BIOS Banner Press Ctrl+A while the BIOS banner appears on the screen. SCSISelect displays the Options menu shown in Figure 3-2. Adaptec AVA-2820/2822/2825 SCSISelect(TM) AVA-2820/2822/2825 at Port 0340h Would you like to configure the host adapter or run the SCSI disk utilities? Select the option and press <Enter>.

  • Page 55: Configure/View Host Adapter Settings

    (*) on all selection submenus. Configure/View Host Adapter Settings For most users, the first four settings shown on the menu in Figure 3-3 are the ones most likely to require adjustment. Adaptec AVA-2820/2822/2825 AVA-2820/2822/2825 at Port 0340h Configuration Host Adapter Interrupt (IRQ) Channel ...

  • Page 56: Host Adapter Interrupt (Irq) Channel

    SCSI parity. Host Adapter SCSI Termination This option allows you to configure host adapter SCSI termination. Termination is enabled by default. Figure 3-4 displays your choices. Adaptec AVA-2820/2822/2825 AVA-2820/2822/2825 at Port 0340h Configuration Enabled Host Adapter Interrupt (IRQ) Channel ...

  • Page 57: Scsi Device Configuration

    This option allows you to configure certain parameters of each SCSI device connected on the SCSI bus. When this option is selected, a screen similar to Figure 3-5 appears. Adaptec AVA-2820/2822/2825 AVA-2820/2822/2825 at Port 0340h Configuration Host Adapter Interface Definitions SCSI Device Configuration Host Adapter Interrupt <IRQ>...
  • Page 58 AVA-2820/2822/2825 User’s Guide Devices that negotiate synchronous data transfer rates can maintain a much higher conversation speed than devices that do not support this feature. When Initiate Sync Negotiation is set to yes, the host adapter ini- tiates synchronous negotiation with the SCSI device. When set to no, the host adapter does not initiate synchronous negotiation with the SCSI device.
  • Page 59 Enable Disconnection This option determines whether the host adapter allows a SCSI device to disconnect from the SCSI bus (sometimes called discon- nect/reconnect). Disconnection allows the host adapter to perform other operations on the SCSI bus while the SCSI device is tempo- rarily disconnected.

  • Page 60: Advanced Configuration Options

    When this option is selected, a screen similar to Figure 3-6 appears. These settings do not normally need modification. Do not change these options unless you fully understand the ramifications. Adaptec AVA-2820/2822/2825 AVA-2820/2822/2825 at Port 0340h Configuration Host Adapter Interrupt (IRQ) Channel ...
  • Page 61 If you want to remove media while the system is powered, install device drivers. Refer to Additional Support Through Adaptec EZ-SCSI Lite on page 1-5. The following choices are available for this option: Boot Only—Only the removable-media drive designated as...

  • Page 62: Scsi Disk Utilities

    When you select SCSI Disk Utilities from the Options menu, SCSISelect scans the SCSI bus and lists all SCSI devices installed; a screen similar to Figure 3-7 appears. Adaptec AVA-2820/2822/2825 AVA-2820/2822/2825 at Port 0340h Select SCSI Disk and press <Enter>...

  • Page 63: Format Disk

    Format Disk The Format Disk utility starts the Adaptec SCSI low-level format utility. This utility is compatible with the vast majority of SCSI disk drives. Your hard disk media must be low-level formatted before you can use your operating system’s partitioning and file prepara- tion commands, such as MS-DOS fdisk and format.

  • Page 64: Stock Number: 510609-00, Rev. B Page

    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA Page: 3-14 ECN Date: 1/31/95 AAAA AAAA AAAA AAAA AAAA AAAA...

  • Page 65: Standard Ide Or Eide Configuration (Ava-2825 Only)

    Standard IDE or EIDE Configuration (AVA-2825 Only) About This Chapter Read this chapter to find out about Setting up your standard IDE or EIDE drives with the AVA-2825 host adapter Configuring your computer ’s CMOS setup to recognize the standard IDE or EIDE drives Installing Disk Manager and FLEXI-Driver software for use with your standard IDE or...
  • Page 66 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA Page: 4-2 ECN Date: 1/31/95 AAAA AAAA AAAA AAAA AAAA AAAA...

  • Page 67: Standard Ide And Eide Overview

    Standard IDE or EIDE Configuration (AVA-2825 Only) Standard IDE and EIDE Overview Standard IDE and EIDE is an interface scheme used to transport data in most computers. It has different specifications and require- ments than SCSI. Configuration for standard IDE or EIDE disk drives is done by the motherboard BIOS, not the SCSI controller.

  • Page 68: Configuring The Computer's Cmos Setup

    AVA-2820/2822/2825 User’s Guide Configuring the Computer’s CMOS Setup If you simply moved your standard IDE or EIDE drive(s) from the computer’s disk controller to the AVA-2825, skip to Installing FLEXI-Driver Software below. If you added one or two standard IDE or EIDE drives to the com- puter, follow these steps: Enter the CMOS setup for your computer.
  • Page 69 Standard IDE or EIDE Configuration (AVA-2825 Only) Caution: You must use the version of Disk Manager included with the AVA-2825. If an older version of Disk Manager is already installed on your computer, update it with this newer version. Otherwise, your IDE/EIDE disk drive may not operate reliably with the AVA-2825.

  • Page 70: Installing Flexi-Driver Software

    The AVA-2825 must be installed with your standard IDE or EIDE drive(s) connected to it, or FLEXI-Driver will not install. Make a copy of Adaptec’s FLEXI-Driver installation diskette and use this copy as your working diskette. Insert the copy of FLEXI-Driver diskette in a floppy drive in your computer.
  • Page 71 Help information. Press Esc to exit from a Help screen or to exit the Install program. The Install program scans your computer for an Adaptec standard IDE or EIDE controller. Controller information is then listed on the bottom of the screen. Press Enter to continue.
  • Page 72 AVA-2820/2822/2825 User’s Guide The Install program prompts you to install FLEXI-Driver for Windows. Accept the default directory of c:\windows or type the full path name where Windows is located and press Enter. Install updates your system.ini file and saves the previous version as system.bak . If you do not want to install FLEXI-Driver for Windows, press Esc.

  • Page 73: A Troubleshooting

    Troubleshooting About This Appendix Read this appendix to find out How to use the troubleshooting checklist to diagnose problems that may occur when you install a host adapter in your system How to fix problems you may encounter How to resolve conflicts with other options AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev.
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  • Page 75: Scsi Troubleshooting Checklist

    The following suggestions should help you to solve any problems you may encounter. If you need more help in getting the host adapter running properly, see Adaptec Technical Support and Services on page ii. If a problem occurs during installation, check the following items first: All cables are properly connected.

  • Page 76: Scsi Problems And Solutions

    SCSISelect. See SCSI Disk Utilities on page 3-12. Similar low-level formatting utilities for removable-media devices are included in the Adaptec EZ-SCSI Lite software package for the DOS/Windows environment. Refer to Addi- tional Support Through Adaptec EZ-SCSI Lite on page 1-5.
  • Page 77 The disk drive may be defective. Consult the device docu- mentation and contact the manufacturer. 05h - Illegal request The Adaptec formatting utility does not support a low- level format of this device; however, the device may already be low-level formatted by the manufacturer. (This error rarely occurs.)

  • Page 78: Host Adapter Conflicts

    AVA-2820/2822/2825 User’s Guide Host Adapter Conflicts I installed my host adapter at IRQ 12, and it does not work properly. What is wrong? Another device such as a mouse may be using IRQ 12. Change the adapter’s IRQ to the default value (IRQ 11) or to another value that is not being used by another board in the computer.
  • Page 79 Back up the data on the disk device, if you want to save it. Caution: All data on the target drive will be lost when you run the Format Disk utility. Back up your data! Perform a SCSI low-level format with the Format Disk utility under SCSI Disk Utilities.

  • Page 80: Standard Ide Or Eide Problems And Solutions

    AVA-2825 host adapter. AVA-2820/2822/2825 host adapters fully support SyQuest SCSI removable disk drives. However, the AVA-2825 does not support Syquest IDE removable disk drives. Contact the Adaptec BBS for a complete list of supported IDE devices. AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev.

  • Page 81: Software And Performance Problems

    I connected my Mode 1 IDE drive to the AVA-2825, and it is not performing as well as I expected. IDE drives operate in a range of performance levels, and some drives report their mode incorrectly. For these reasons, Mode 1 and Mode 2 drives do not always perform as well as expected.
  • Page 82 AVA-2820/2822/2825 User’s Guide If the line is missing from config.sys or the file is not in the directory, reinstall FLEXI-Driver from the floppy diskette as described in Installing FLEXI-Driver Software on page 4-6. FLEXI-Driver software must be installed from the floppy diskette for correct operation. If you simply copy the driver from the floppy disk to the hard disk the installation utility cannot evaluate your system configuration and set the appropriate driver features.

  • Page 83: Windows

    The system reports a disk allocation problem (or equivalent) at bootup. Try one of the following suggested fixes: Boot your system from a floppy diskette. In the config.sys move the command line device=c:\flexidrv\flexidrv.sys after any memory or disk management utility commands. FLEXI-Driver may conflict with some versions of memory and disk management utilities.
  • Page 84 AVA-2820/2822/2825 User’s Guide Make sure that the following lines are in the [386Enh] section of your system.ini file and that the device=*wdctrl line is com- mented out: 32BitDiskAccess=On device=c:\windows\system\flexidrv.386 If the changes are correct as described, and Windows still does not load properly, edit the system.ini file and reverse the changes to enable the standard Windows operating mode.
  • Page 85 My standard IDE (or EIDE) drive runs very slowly under Windows. Be sure that FLEXI-Driver for Windows is installed. If it is installed, be sure that the following lines are in the [386Enh] section of your system.ini file and that the device=*wdctrl line is commented out: 32BitDiskAccess=On device=c:\windows\system\flexidrv.386 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
  • Page 86 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA Page: A-14 ECN Date: 1/31/95 AAAA AAAA AAAA AAAA AAAA AAAA...

  • Page 87: B Large Scsi Disk Drive Support

    Large SCSI Disk Drive Support About This Appendix Read this appendix to find out An overview of Extended BIOS Translation and the DOS 1 GByte limit for SCSI drives When to use the Extended BIOS Translation feature Questions and answers about Extended BIOS Translation AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide...
  • Page 88 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA Page: B-2 ECN Date: 1/31/95 AAAA AAAA AAAA AAAA AAAA AAAA...

  • Page 89: Extended Bios Translation

    SCSI host adapters, using 64 heads and 32 sectors, provides a maximum accessible capacity of 1 GByte. To eliminate the 1 GByte limit, Adaptec’s Extended BIOS Translation feature uses 255 heads and 63 sectors, extending the disk drive capacity limit under DOS to 8 GBytes.

  • Page 90: Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Ecn Date:

    AVA-2820/2822/2825 User’s Guide Caution: Do not enable the Extended BIOS Translation fea- ture in non-DOS environments. With Mixed Partition Drives Do not use Extended BIOS Translation on drives formatted with two or more partitions for different operating systems. Use standard translation because the sum of the DOS partitions will be less than 1 GByte.

  • Page 91: C Floptical Drive Support

    Floptical Drive Support About This Appendix Read this appendix to find out How the host adapter supports Floptical drives Floptical drive assignment Necessary formatting utilities AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA AAAA AAAA AAAA AAAA...
  • Page 92 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA Page: C-2 ECN Date: 1/31/95 AAAA AAAA AAAA AAAA AAAA AAAA...

  • Page 93: Floptical And Floppy Device Support

    Floptical and Floppy Device Support Floptical drives are only supported by the DOS (3.0 and above) and Windows (3.0 and above). Floptical support for the host adapter BIOS is enabled with SCSISelect, see BIOS Support for Floptical Drives on page 3-12 for instructions. The AVA-2820/2822/2825 BIOS supports standard 3.5-inch VHD (Very High Density) 21 MByte Floptical diskettes, without requiring driver software.

  • Page 94: Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Aaaa Ecn Date:

    DOS application program that performs low-level formatting, parti- tioning, and high-level formatting of Floptical VHD diskettes. Call Adaptec if you want to upgrade your EZ-SCSI Lite software to EZ-SCSI, see page ii for the telephone number. The SCSISelect SCSI Disk Utilities Format Disk option may also be used to low-level format VHD diskettes.
  • Page 95 Glossary Adaptec EZ-SCSI A software program that auto- matically configures your com- puter to use the Adaptec SCSI host adapter and SCSI devices connected to it. EZ-SCSI copies applications and device drivers to the computer’s hard disk drive. In nearly every case, the...
  • Page 96 AVA-2820/2822/2825 User’s Guide computer is the special program used to boot and control the computer. Most Adaptec host adapters include an onboard BIOS that initializes the SCSI bus, runs bootup diagnostics, and performs other functions. BIOS Address The address in computer mem-...
  • Page 97 Cylinder A pair of tracks that lie over each other on the opposite sides of a disk. The heads in a disk device can write data to the tracks in a cylinder without moving. Cylin- ders are arranged in concentric circles radiating from the center of the disk device.
  • Page 98 External SCSI devices are con- nected to the SCSI bus with round cables that have layered twisted pair assemblies with electrical shielding. SCSI See Adaptec EZ-SCSI. Page: Glossary-4 ECN Date: 1/31/95 AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA...
  • Page 99 Fast SCSI A SCSI standard that allows data to be transferred at up to 10 MBytes/sec on an 8-bit SCSI bus and up to 20 MBytes/sec on a 16-bit (Wide) SCSI bus. The Fast SCSI bus is limited to 3 meters of cable. File Allocation Table.
  • Page 100 Industry Standard Architecture. The type of computer bus used in most computers. An ISA bus enables expansion devices like network cards, video adapters, and modems to send data to and receive data from the computer’s CPU and memory either 8 bits or 16 bits at a time.
  • Page 101 Jumper Shunt A small removable metal and plastic device used to make an electrical connection between pairs of metal pins on a jumper block. You can install a jumper shunt on a jumper block to enable or disable certain features of a host adapter or some other device.
  • Page 102 The motherboard normally contains the comput- er’s CPU, memory chips, expan- sion bus, and other important components. It also has expan- sion slots in which host adapters and other expansion boards can be inserted. Multisession A CD-ROM drive that is multi-...
  • Page 103 A family of small computers sold by IBM, also called the Per- sonal Computer-AT family of computers. The name is trade- marked by IBM. Peripheral Device Any optional input or output device, such as a printer or CD-ROM drive, that connects to a computer’s CPU.
  • Page 104 Configuration information is stored in an EEPROM which retains the data when the computer power is turned Adaptec’s SCSISelect utility is a setup program included with many Adaptec host adapters. Single ended SCSI A term referring to the electrical characteristics of the signals used on the SCSI bus.
  • Page 105 640 KBytes and 1 MByte. If you have a 386 or 486 computer you can load software programs such as Adaptec’s ASPI managers and ASPI mod- ules in upper memory blocks. This frees up more conventional...
  • Page 106 AVA-2820/2822/2825 User’s Guide run and generally improves sys- tem performance. VESA Video Electronics Standard Association. An international, non-profit organization of com- puter equipment and software manufacturers that defines and promotes video standards for the VL-Bus technology. VESA Local Bus. A local bus technology that allows hard disk drives, video cards, and other peripherals to send data directly...
  • Page 107 Index Adaptec Electronic Bulletin Board Service ii Adaptec Interactive Fax ii Adaptec Software, Ordering ii Arbitration Phase 2-17 ASPI Manager 1-6 aspi2dos 1-4 Asynchronous Negotiation 3-7 Asynchronous Support 1-7 BIOS 2-5, 2-6, 2-8, 3-10, 3-11, 3-12, 4-3, A-6, B-3 BIOS Address 2-8...
  • Page 108 AVA-2820/2822/2825 User’s Guide SCSI hard disk 1-5, 2-18, 3-11, 3-13, 4-3, 4-5, A-4, B-3 SCSI hard disk over 1 GByte 3-11, A-6, B-3 SCSI tape 1-5 SCSI, configuration 3-7 Disconnect/reconnect 1-7, 3-9 Disk Device booting from 3-9 Disk Manager Software 4-4 DOS 1-8, 3-11, 4-4, 4-6, A-6, B-3 DOS Disk Capacity Limit IDE/EIDE 4-4...
  • Page 109 Removable-media Drive 3-10 Removable-media Drives 1-5, A-5 SCSI Bus 2-15–2-17, 3-6, 3-9, A-3 SCSI Devices booting from 3-9 SCSI Disk Utilities see Utilities SCSI Hard Disks 3-11, 3-13, 4-3, 4-5, A-4, B-4 SCSI Hard Disks Over 1 GByte 3-11, A-6, B-3, B-4 SCSI I/O Port Address 2-6 SCSI ID 2-17, 3-6, 3-7, A-3, A-4, A-6 SCSI Termination 2-15–2-17, 3-6,...

  • Page 110: Ava-2820/2822/2825 User's Guide

    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AVA-2820/2822/2825 User’s Guide Stock Number: 510609-00, Rev. B Print Spec Number: 492728-00 Current Date: 1/30/95 AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA Page: -4 ECN Date: 1/31/95 AAAA AAAA AAAA AAAA AAAA AAAA...

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