ASUS 7890SCSI User Manual

▼ ▼ ▼ ▼

Adaptec 7800 Family

Manager Set

for Windows NT, Windows 95,

Novell NetWare, IBM OS/2,

SCO UNIX, an d SCO UnixWare

User’s Guide

Copyright

© 1998 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.

This manual is reprinted in Taipei, Taiwan by ASUSTeK COMPUTER INC. under license of Adaptec, Inc.

Trademarks

Adaptec, the Adaptec logo, AHA, and AIC are trademarks of Adaptec, Inc. which may be registered in some jurisdictions. Windows and Windows 95 are registered trademarks and Windows NT is a trademark of Microsoft Corporation in the U.S. and other countries used under license.

All other trademarks are owned by their respective owners. ASUS and ASUSTeK are registered trademarks of ASUSTeK COMPUTER INC.

Changes

The material in this document is for information only and is subject to change without notice. While reasonable efforts have been made in the preparation of this document 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 and ASUSTeK 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 your Adaptec product, 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:

Electronic Support

Technical information, including product literature, answers to commonly asked questions, information on software upgrades and other topics is available electronically through the following:

■ Adaptec World Wide Web (WWW) site at

■ File Transfer Protocol (FTP) server at

■ Adaptec USA Bulletin Board Service (BBS) at 408-945-7727; supports up to 28,800

bps (bits per second), 8 data bits, 1 stop bit, no parity. No product literature is available on the Adaptec BBS.

■ Interactive Fax System at 303-684-3400; available 24 hours a day, 7 days a week.

http://www.adaptec.com

ftp.adaptec.com

ASUS Contact Information

ASUS may be contacted at indicated in your motherboard manual.

http://www.asus.com.tw

or through any of the means

Technical and Product Support

For technical support and information about many of Adaptec’s electronic

■

support services, call 800- 959-7274 or 408-94 5-2550, 24 hours a day, 7days a we ek. To speak with a product sup p ort rep resentati ve , call 408-934-727 4, M–F, 6:00 A.M.

■

to 5:00

., Pacific Time. After hours, on weekends, and on holidays, product

P.M

support is also available for a fee at 800-416-8066.

Sales and Ordering Information

For sales in formation, c all 800-959-7274 or 408-945-2550, M–F, 6:00A.M. to 5:00

■

., Pacific Time.

P.M

To order Adaptec software and cables, cal l 800-442-7274 or 408-957- 7274,

■

M–F, 6:00 To request add it ional documentation for Adapte c p roducts, call 800-934-2766 or

■

510-732-3829, M–F, 6:00

. to 5:00 P.M., Pacific Time.

A.M

. to 5:00 P.M., Pacific Time.

A.M

Federal Communications Commission Radio Frequency Interference Statement

WARNING: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

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 reasonabl e protection against harmful interference in a residential installat ion. This eq ui pment genera tes, uses, and can radiate radio frequency energy, and if not installed and used in accorda nce with the instr uction manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. However, if this equipment does cause interference to radio or television equipment recep tion, whi ch 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 equipment and receiver.

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

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

Use a shielded and properly grounded I/O cable and power cable to ensure compliance of this unit to the spec if ied limits of the rules.

This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmfu l interference and (2) this device must accept any interference received, including interfer ence that may cause undesired operation.

Canadian Compliance Statement

This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipme n t Reg u la ti o n s.

Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matérial brou illeur du Canada.

iii

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1 Introduction

Device Drivers 1-2 Adaptec 7800 Family Host Adapters 1-3 Requireme nts 1-5

2 Microsoft Windows NT Installation

Installing the Driver When Installing Windows NT 2-2

Completing a Fre sh Windows NT 3.5x Installation 2-2 Completing a Fresh Windows NT 4.0 Installation 2-4

Installing the Driver When Windows NT is Already

Installed 2-5

Updating Windows NT 3.5x 2-5 Updatin g Win dows NT 4.0 2-7

Using Advanced Configurable Parameters 2-8

Using Windows NT SCSI Parameters 2-8 Using Driver-specific Param eters 2-10

Using Windows NT and the Host Adapter 2-12

Removing a Host Adapter 2-12 Swapping a Host Adapter 2-15

Troubleshooting 2-16

Problems and Solutions 2-16 Error Code s 2- 16

3 Microsoft Windows 95 Installation

Installing the Driver When Installing Windows 95 3-2 Installing the Driver When Windows 95 is Already

Installed 3-2 Updating the Driver for Windows 95 (Version OSR 2) 3-4 Troublesho oting 3-5

Adaptec 7800 Family Manager

Problems and Solutions 3-5

4 Novell NetWare Installation

Installing the Driver When Installing NetWare 4-2

NetWare v3.1x 4-2

NetWare v4.0 or v4.1x 4-3 Installing the Driver When NetWare is Already Installed 4-4 Loading the Driver at Server Boot up 4-5 Using the Load Comm an d Line Optio ns 4- 7

Table of aic7870.dsk Command Line Optio ns: 4-7

Table of aic78u2.dsk Command Line Options 4-10

Bit Mask Options 4-12

Sample Load Commands 4-12 Using NetWare and the Host Adapter 4-13

Using Removable Media 4-13

Using the NetWare Tape Backup 4-15

Using a CD-ROM with NetW are 4-16

Optimizing Performance 4-17 Troubleshooting 4-18

Error Messages 4-18

5 IBM OS/2 Installation

Installing the Driver When Installing OS/2 5-1

Installing OS/2 v2.1x (Ultra SCSI Driver Only) 5-2

Installing OS/2 Warp 3.x, 4.x, and 4.x SMP 5-3 Installing the Driver When OS/2 is Already Installed 5-6 Using Command Line Options 5-8

Universal Parameters 5-8

Adapter ID 5-9

Unit Parameters 5-9

Command Line Examples 5-11 Troubleshooting 5-12

Problems and Solutions 5-12

Error Messages 5-12

6 SCO UNIX Installation

Installing the Driver When Installing SCO UNIX 6-2

Installing SCO UNIX 3.2 v4.2, SCO ODT 3.0, or

SCO OpenServer 3.0 6-2

Installing SCO OpenServer 5 6-4

Installing the Driver When SCO UNIX is Already

Installed 6-5

Perform a System Backup 6-6 Use the Install Package 6-7 Modify the mscsi File 6-8 Rebuild the UNIX Kernel 6-9 Boot the New Kernel 6-10

Using SCO UNIX an d the Host Adapter 6-10

Using Multiple Host Adapt ers 6-10 Changing the Boot Disk 6-10 Using Wide SCSI Host Adapters and Devices 6-11 Using Tunable Parameters for the alad Driver 6-11 Enabling Scatter/Gather and Tagged Queuing 6-12

Troubleshooting 6-13

Problems and Solutions 6-13 Error Messages 6-17

Contents

7 SCO UnixWare Installation

Installing the Driver When Installing SCO UnixWare 7-2 Installing the Driver When SCO UnixWare is Already

Installed 7-3

Back Up the Computer 7-4 Load the Package 7-4 Modify the New S y st e m Fil e 7- 6 Rebuild the SCO Unix War e Kernel 7-7 Boot the New Kernel 7-7

Using SCO UnixWare a nd the Hos t Ad ap ter 7-8

Using Tunable Parameters 7-8 Using Multiple Host Adapt ers 7-8 Removing the Driver 7-9

vii

Adaptec 7800 Family Manager

Troubleshooting 7-11

Problems and Solutions 7-11

Error Messages 7-11

Index

❒

viii

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Introduction

The Adapt ec® 7800 Family Manager Set v3.x is a set of soft ware drivers and other files that enable your Adaptec 7800 Family host adapter to communicate with your computer. The Adaptec 7800 Family Manager Set contains drivers for the following operating systems:

■

Microsoft Windows NT

■

Microsoft Windows 95

■

Novell NetWare

■

IBM OS/2

■

SCO UNIX

■

SCO UnixWare

The remainder of this chapter includes a table that lists all Adaptec host adapters that make up the Adaptec 7800 Family, as well as the minimum re qui rements needed to install the software.

The remaining chapters are organized by operating system. Each chapter provides instructions on how to install the driver at the same time you install your operati ng system. If yo u r ope rating system is alr ead y in sta lled, i nstr uc tions on upda tin g or insta lli ng the driver are also included. If you have problems installing and using the driver , refer to the each chapter.

T r oubleshooting

sections, included at the end of

1-1

Adaptec 7800 Family Manager

Device Drivers

The 7800 Family Manager Set has two driver files for each operating system; one for Ultra SCSI a nd e a rlier devices and one for Ult ra2 SCSI devices. This manu al refers to both the Ultra SCSI and Ultr a2 SCSI drivers when describing installation. Ref er to the table below for a l ist o f f il es f or the dr iver s provided on your instal la tio n di sket te or CD ROM. Use the columns in the table to determine the correct driver for your SCSI device.

Operating System UltraSCSI Driver Ultra2 SCSI Driver

Windows NT aic78xx.sys aic78u2.sys Windows95 aic78xx.mpd aic78u2.mpd NetWare aic7870.dsk aic78u2.ham OS2 aic7870.add aic78u2.add SCO UNIX alad or alad325 blad or blad325 SCO UnixWare adsl20 or adsl adsb20 or adsb

For information on how to install the driv er for your SCSI Adapt er, refer to the section of this manual describing yo ur specific operating system.

1-2

Introduction

Adaptec 7800 Family Host Adapters

The following Adaptec PCI-to-SCSI host adapters are collectively referred to as the Adaptec 7800 Family host adapters:

Host Adapter Description

AVA-2902I PCI-to-Fast SCSI (non-bootable, internal) AVA-2902E PCI-to-Fast SCSI (non-bootable, external) AVA-2904 PCI-to-Fast SCSI (non-bootable) AHA-2910 PCI-to-Fast SCSI (non-bootable) AHA-2930 PCI-to-Fast SCSI AHA-2940 PCI-to-Fast SCSI AHA-2940W PCI-to-Fast and W i de SCSI AHA-2940AU PCI-to-Ultra SCSI AHA-2940U PCI-to-Ultra SCSI AHA-2940UW PCI-to-Wide Ultra SCSI AHA-2940U2W PCI-to-Ult ra2 Wide Si ngle-ended SCSI AHA-2940U Dual MultiChannel PCI-to-Ultra SCSI with Dual

External Connectors

AHA-2940UW Dual MultiChanne l PCI-to-Wide Ultra SCSI with

Dual Extern a l Con nec to rs AHA-2944W PCI-to-Fast and W i de Di fferential SCSI AHA-2944UW PCI-to-Wide Ultra Di fferential SCSI

AHA-3940 MultiCha nne l PCI-to-Fast SCSI AHA-3940W MultiChannel PCI-to-Fast and Wide SCSI AHA-3940U MultiChannel PCI-to-Ultra SCSI AHA-3940UW MultiChannel PCI-to-Wide Ultra SCSI AHA-3940UWD MultiChanne l PCI-to-Wide Ultra SCSI with

Dual Extern a l Con nec to rs AHA-3940AU MultiChannel PCI-to-Ultra SCSI AHA-3940AUW MultiChanne l PCI-to-Wide Ultra SCSI AHA-3940AUWD MultiChanne l PCI-to-Wide Ultra SCSI with

Dual Extern a l Con nec to rs AHA-3944W MultiCha nne l PCI-to-F ast and Wide

Differential SCSI

1-3

Adaptec 7800 Family Manager

Host Adapter Description

AHA-3944UWD MultiChannel PCI-to-Wide Ultra Di fferential

SCSI with Dual External Connectors

AHA-3944AUWD MultiChannel PCI-to-Wide Ultra Differ e ntial

SCSI with Dual External Connectors

AHA-4944W Quad Channel PCI-to-Fast a nd Wide

Differential SCSI

AHA-4944UW Quad Channel PCI-to-Ultra Wide Differential

SCSI

AIC-7850 Single-c h i p PCI-to-Fast SCSI AIC-7855 Single-c h i p PCI-to-Fast SCSI AIC-7856 Single-c h i p PCI-to-Fast SCSI AIC-7860 Single-chip PCI-to-Ultra SCSI AIC-7870 Single-chi p PC I-to-Fast and Wide SCSI AIC-7880 Single-chip PCI-to-Wide Ultra SCSI AIC-7890 Single-c h i p PCI-to-Ul tra2 SCSI (32 bit) AIC-7891 Single-c h i p PCI-to-Ul tra2 SCSI (64 bit) AIC-7895 Single-chip PCI-to-MultiChannel Wide Ultra

SCSI

AIC-7896 Single-chip PCI-to-MultiChannel Ultra2 SCSI

(32 bit)

AIC-7897 Single-chip PCI-to-MultiChannel Ultra2 SCSI

(32 bit)

1-4

Introduction

Requirements

The following are the minimum and recommended requi rements needed to install the Adaptec 7800 Family Manager Set:

■

A PCI computer, with an installed and configured Adaptec 7800 Family host adapter(s).

■

An installed primary (boot) floppy diskette drive. The drive must be able t o read your operating system diske ttes. A

3.5-inch (1.44 MByte) floppy diskette drive is required.

■

The diskettes included with your Adaptec 7800 Family Manager Set.

■

Optional—an inst alled an d conf igured CD -RO M dr ive for installing your operating system from CD-ROM.

■

The distribution software and documentation inclu ded with your operating system.

■

The User’s Guide for your host adapter.

❒

1-5

▼ ▼ ▼ ▼

Microsoft Windows NT Installation

This chapter explain s h ow to in stall the Adaptec 7800 Family Manager Set Windows Family Ultra SCSI (and earlier) ho st adapters, and the driver supports all Ultr a2 SCSI adapters. Refer to the list on page 1-3.

If you are per f orming a first ti me Windows NT installation, see

Installing the Driver When Installing Windows NT

Windows NT is already installed in yo u r sy stem, see

Driver When Windows NT is Already Installed

aic78xx.sys

NT. The

aic78xx.sys

aic78u2.sys

and

drivers for

driver supports all Adaptec 7800

aic78u2.sys

on page 2-2. If

Installing the

on page 2-5.

2-1

Adaptec 7800 Family Manager

Installing the Driver When Installing Windows NT

A version of the (included) in the Windows NT 3.5x and 4.0 installation disks (or CDROM). During a normal Windows NT installation, the 7800 Family host adapter is detected in your system and the embedded driver is automatically installed.

Note:

and you are unable to install the embedded driver by performing a Windows NT installation, follow the instructions for completing a fresh Windows NT installation.

The

aic78u2.sys

Windows NT 3.5x and 4.0 installation disks (or CD-ROM) and must be installed after Windows NT has been installed. When completing the Windows NT installation, you can update the driver by following the instructions in Installing the Driver When Windows NT is Alrea dy In s t al led on page 2-5.

aic78xx.sys

If you are booting from a 7800 Famil y host ada pter

driver (Ultra2 SCSI) is not embedded on the

driver(Ultra SCSI) driver is embedded

aic78xx.sys

Completi ng a Fresh Windows NT 3. 5x Installation

If you choose to install Windows NT from a flop p y drive, locate the Windows NT Setup Disk 1 for Floppy Installation.

If you are installing from a CD-ROM drive, locate the Windows NT Setup Disk 1 fo r CD- ROM Installat ion.

Insert the di skette into drive A (not drive B) and turn ON your computer. When prompted, insert Windo ws NT Disk 2.

From the Welcome to Setup Screen, press Enter to set up Windows NT.

When prompted, select Custom setup .

Note:

If you are installing an Ultra2 SCSI host adapter

such as the A HA-2940U2W, you cannot select Express

2-2

setup, because the embedded. Selecting Express setup loads the embedded driver NT which is for Ultra SCSI adapters only.

aic78u2.sys

aic78xx.sys

driver is not

included with Windows

Microsoft Windows NT Installation

Press S to skip mass storage device detection. This allows you to manually select the driver for your host adapter.

Since mass storage device detection was skipped in the previous step, Windows NT Setup displays none in the list of recogni zed device s. Press S to configure add itional SCSI adapters.

From the lis t of additi onal SC SI ad apters, expan d the l ist, sel ect Other, and press Enter (requires disk provided by a hardware manufacturer).

Insert the Ada ptec 7 80 0 F am ily M ana ge r S et d iske tte fo r Windows NT into drive A

The screen displays the adapter drivers supported on the diskette. For Windows NT 3.5x, the following is displayed:

Adaptec AHA-290x/291x/294x/4944/AIC-78xx PCI SCSI Controller (NT 3.5x)

Adaptec AHA-294xu2/AIC-7890/91 PCI Ultra2 SCSI Controller (NT 3.5x)

and press Enter.

Highlight the driver and press En ter.

To add other host ad apters that are not a part of the 7800 Family, do so at this time by repeat from step 7 for each addition al adapter and inse rt the appropriate driver disk. The Adaptec 7800 Family host adap ter s use the same dr iver ; it is not necessary to install the driver again .

Press Enter to continue wit h the Windows NT operat ing system setup. Follow the instruction s given onscreen and in the Windows NT installation documentation.

2-3

Adaptec 7800 Family Manager

Completi ng a Fresh Windows NT 4. 0 Installation

Start your system with the Windows NT Boot Diskette in th e

floppy drive. When prompted, insert diskette #2 in your floppy drive. After

a few moments you will see a blue screen. To setup Windows NT now, press Enter.

Press S to skip auto-detection of your SCSI host adapter.

Press S again to specify an additional device.

Press Enter to select Others; insert the 7800 Family Manager

Set diskette for W indows NT in your flo p p y dri ve. Select from the f ol l owing dr iv ers:

Adaptec AHA-290x/291x/294x/394x/4944/AIC-78xx PCI SCSI Controller (NT 4.0)

Adaptec AHA-294xu2/AIC-7890/91 PCI Ultra2 SCSI Controller (NT 4.0)

Highlight a driver and press Enter.

To add other host adapters that are not part of the 7800 Family,

press S and r epeat from Step 4 for each additional adapter and insert the appropriate driver disk. The Adaptec 7800 Family host adapters use the same driver; it is not nec e ssary to install the driver again.

Press Enter to continue with the W indows NT operating

system se tup. Follow the instructions onscr e e n and in the Windows NT docume ntation to compl e te the installation.

2-4

Microsoft Windows NT Installation

Installing the Driver When Windows NT is Already Installe d

To upd ate or install the Windows NT is already installed, follow the instructions below for the version of Windows NT you are installing.

aic78xx.sys

aic78u2.sys

driver if

Updating Windows NT 3.5x

Select and start the Windows N T Setup program. (Its icon is usually found in the Main program group.) There is a brief pause while Windows NT Setup scans your hardw are configuration.

Select the Options pull-down menu and then select

setup

Add/Remo v e SCSI Adapters . The SCSI Adapter program displays a list of all host adapters currently installed.

Click the Add button to add another host adapter type to the list. A list of additional SCSI adapters appears.

Expand the list of additional SCSI adapters; select Other and press Enter. (Requires disk provided by th e hardware manufacturer.)

Insert the Ada ptec 7 80 0 F am ily M ana ge r S et d iske tte fo r

;

Windows NT into drive A to the install at io n fil es an d th e n c lick OK .

a:\winnt\3_5)

enter one of th e fo llow ing p aths

The screen displays the adapter drivers supported on the diskette:

Adaptec AHA-290x/291x/294x/4944/AIC-78xx PCI SCSI Controller (NT 3.5x)

Adaptec AHA-294xu2/AIC-7890/91 PCI Ultra2 SCSI Controller (NT 3.5x)

Highlight a driver, then click OK. The driver is added to the list of SCSI ad ap ters.

Select the dri ver f rom th e li st of SCSI adapters an d clic k Install. At this poin t, Windows NT Setup checks to see if the specified

driver has al ready been copied to the syst e m disk.

2-5

Adaptec 7800 Family Manager

If the following message appears, click New to replace the existing driver and skip to Step 10.

The driver(s) for this SCSI Adapter are already on the system. Do you want to use the currently installed driver(s) or install new one(s).

If the following message appears, continue with Step 9.

Please enter the full path to the Windows NT SCSI Adapter files.

Change the path to th e a:\winnt\3_5 directory, then cl ick Continue.

The device driver is copied to your system disk and the Windows NT confi guration is updated so that th e new device driver loads when Windows NT reb oots.

When the installation is complete, Windows NT Setup again displays a list of currently installed host adapter types. Verify that the new host adapter appears on the list. The text string should look similar to:

Adaptec AHA-290x/291x/294x/4944/AIC-78xx PCI SCSI Controller (NT 3.5x)

or Adaptec AHA-294xu2/AIC-7890/91 PCI Ultra2 SCSI Controller

(NT 3.5x)

Add other ty p e s of host adapters if necessary (see ste p4 on page 2-5), or click Close to exit the SCSI adapters portion of Windows NT Setup, and the n close the prog ram.

When you see this message, click OK to exit:

The changes you have made will not take effect until the computer is restarted

If this message does not appear, no changes have been made to the Windows NT system configuration.

Restart y our computer and Wind ows NT. It is possible that some drive letter assignments may change from the previous configuration.

2-6

Microsoft Windows NT Installation

Updating Windows NT 4.0

Start Windows NT.

Click the Start button on the Windows NT task bar, and then

poin t to Se t tings . Click the C ontrol Panel.

Double-click the SCSI Adapters icon.

Click the Drivers ta b , and then click the Add button.

In the Install Driver window, click the Have Disk button.

Insert the 7800 Family Manag e r Set diskette for Windows NT

into drive A. From the Copy Manufacturer’s File From text box, type

a:\winnt\4.0, and click OK. In the Install Driver window, Click OK.

Click the New button when asked if you want to use the

currently installed driver(s) or install new one(s). Type a:\winnt\4_0 again, and click Continue. The driver is now

installed. You must restart your computer for the changes to take effect.

Click Yes to restart your computer. Click No to ret urn to th e SCSI Adapters window.

2-7

Adaptec 7800 Family Manager

Using Advanced Configurable Parameters

Advanced use rs may use software parameters to alter the configuration of the Windows NT device drivers supplied by Adaptec. All Windows NT configuration information is stored in a data structure called the Registry. You can ed it this informa tion through a tool called the Re g istry Editor.

Caution:

necessary . If there is an error in your registry, your computer

may become nonfunctional.

Do not edit your registry unless it is absolutely

Using Windows NT SCSI Parameters

Follow the instructions below to enter the registry values that affect how the Windows NT SCSI manager interprets the generic configuration information of S C SI device drivers. All SCSI host adapters installed in your system are affected by the values you enter here. A list of valid values fol lows.

Note:

The following value keys are case-sensitive and must

be entered exactly as shown .

■

DisableTaggedQueuing—A nonzero value indicates that the SCSI host adapter disables tagged queueing for SCSI devices. The data type for this value is REG_SZ.

■

DisableSynchronousTransfers—A nonze ro value indi cates that the SCSI h ost adapter is not to initiate synchronous negotiations (but it may still accept negotiations initiated by a SCSI target). The data type for this value is REG_SZ.

■

DisableDisconnects—A nonzero value indicates that target s are not permitted to disconnect during the execution of a SCSI command. Th e dat a typ e for this value is REG_DWORD.

■

MaximumLogicalUnit—This can limit the scan for connected devices on the SCSI bus. Valid values are 1 to 8. If 1 is specified, the Windows NT SCSI manager assu mes that no SCSI targets support LUNs other than 0. Otherwise, LUNs from 0 to 8 are scann e d during s ystem initialization. The d a ta typ e f or this value is REG_DWORD.

2-8

Microsoft Windows NT Installation

■

Maximum SGList— Specifies the ma ximum number of scatter -g ath er elements. Valid values are 17-255. The data type for thi s value is REG_DWORD.

To enter Windows NT parameters, follow these steps:

Select Run from the File menu (Windows NT 3.5x), or Run from the Start button (Windo ws NT 4.0).

Type regedt32 and press Enter.

Open the re gistry list to the following locati on:

\HKEY_LOCAL_MACHINE\System\CurrentControlSet\ Services\aic78xx\Parameters\Device

or \HKEY_LOCAL_MACHINE\System\CurrentControlSet\

Services\aic78u2\Parameters\Device

\Parameters\Device

If the below to begin entering values. If the keys do not yet exist, you will need to create them by continuing with step 4.

Click on the aic78xx or aic78u2 key.

Select Add Key from the Edit menu; Type Parameters in the Key Name edit box. Leave the Class edit box blank.

Click on the Parameters key.

Select Add Key from the Edit menu; Type Device in the Key Name edit box. Leave the Class edit box blank.

To specify a certain host adapter, append De vice with the number of the host adapter. For example, type Device0 for the first host adapter, Device1 for the second, etc. If you omi t the host adapter number, the configuration information applies to all 7800 Family host adapters.

Click on the Device key.

Select Add Valu e from the Edit menu. In th e Value Name edit box, enter one of the valid parameter values. Make sure to enter the appropriate Data Type for the value. To enter additional values, repeat steps 8-9.

keys already exist, skip to step 8

2-9

Adaptec 7800 Family Manager

Changes made with the Registry Editor do not take

Note:

effect until you shut down and then restart your system.

Using Drive r-specific Parameters

To use the Registry Editor to enter

aic78xx.sys

aic78u2.sys

driver-specific param eter s that affect the configuration informati on for Adaptec SCSI PCI device drivers, follow the instructions below. A list of valid parameters follows.

The following parameters are case- sensi tive and must

Note:

be entered exactly as shown . When entering multiple parameters, each parameter must be separ ated by a space.

■

/INSTRUMENTATION—enables recording of I/O statistics and errors. If this option is not specified, instrumentation defaults to disabled. The data type for this value is REG_SZ.

■

/INSTR_ERRLOG_Z=nnn—sets the maximum number of error log entries, if /INSTRUMENTATION is enabled. If a number is not specified, the maximum number or error log entries de f au lts to 32. Valid values are 0-128. The data type for this value is REG_SZ.

■

/MAXTAGS=nnn—specifies the tagged command queue depth. If a number is not specified, the tagged queue depth defaults to 128. Valid values are 1-255. The data type for this value is REG_SZ.

2-10

Microsoft Windows NT Installation

To enter driver-specif i c parameters, foll ow these steps:

Select Run from the File menu (Windows NT 3.5x), or Run from the Start button (Windo ws NT 4.0).

Type regedt32 and press Enter.

Open the re gistry list to the following locati on:

\HKEY_LOCAL_MACHINE\System\CurrentControlSet\ Services\aic78xx\Parameters\Device\DriverParameters

or \HKEY_LOCAL_MACHINE\System\CurrentControlSet\

Services\aic78u2\Parameters\Device\DriverParameters

\Parameters\Devi ce\DriverP arameters

If the skip to step 10 below to begin entering par ameters. If t he k e ys do not yet exist, you will need to create them by continuing with st ep 4.

Click on the aic78xx or aic78u2 key.

Select Add Key from the Edit menu; Type Parameters in the Key Name edit box. Leave the Class edit box blank.

Click on the Parameters key.

Select Add Key from the Edit menu; Type Device in the Key Name edit box. Leave the Class edit box blank.

Click on the Device key.

Select Add Valu e from the Edit menu; type Dri v erParameters in the Key Name edit box. Enter REG_SZ a s the Data Type and press Enter.

A String Editor text box appears. Enter valid parameters in the text box. When entering multiple parameters, each parameter must be separated by a space.

keys already exist ,

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Adaptec 7800 Family Manager

Changes made with the Registry Editor do not take

Note:

effect until you shut down and then restart your system.

Using Windows NT and the Host Adapter

This section contains useful information on using Windows NT and your host adapter.

Removing a Host Adapter

Removing a host adapter can be as si mpl e as ph ysically removin g it from t he s lot wh en your c ompu t er is sh ut dow n. W i nd ows NT b oo ts and function s pr o perly in this con fig ura tion , but a war ning me ssag e is generated every time you boot Windows NT.

Caution:

other host adapters of the same type installed in your

computer, do not use Windows NT Setup to remove the device dri ve r.

To eliminate the warning message, you must update the Windows NT software configuration, as described below:

If you have removed a host adapter but still have

Removing a Host Adapter in Windows NT 3.5x

Start the Windows NT Setup program. There is a brief pause while Windows NT Setup scans your hardware configuration.

Select the Options pull-down menu and then select

setup

Add/Remo v e SCSI Adapters . The SCSI Adapter program displays a list of all host adapters currently installed.

Select the host adapter y ou want to remove and click the Remove button. When the Wind ows NT Setup program asks you for confirmation, click OK.

Because SCSI device drivers are loaded during system bootup and because they may be needed to load Windows NT itself, a screen may appear warning you that Windows NT may not start if you rem ove the SCSI adapter.

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Microsoft Windows NT Installation

If you are sure you are removing the correct host a dapt er t y pe, click OK.

Return to Step 3 to remove dri ver support for other types of host adapters, or click Close to exit the SCSI adapters portion of W indows NT Setup.

Close the Windows NT Setup prog ram. When the following message appears, click OK to exit:

The changes you have made will not take effect until the computer is restarted.

If this message does not appear, no changes have been made to the Windows NT system configuration.

Restart the computer.

Windows NT Setup does not delete the device driver

Note:

from your system disk; it only updates Windows NT software configuration information so that the device driver is no longer loaded during system bootup.

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Adaptec 7800 Family Manager

Removing a Host Adapter in Windows NT 4.0

From the Control Panel, double-click the SCSI Ada p t ers icon.

Click the Drivers ta b .

Select the driver you are planning to remove. The driver appears as one of the following:

For Ultra SCSI:

Adaptec AHA-294X/AHA-394x/AHA-49 44 or AIC-78xx PCI SCSI Controller (NT 4.0)

Adaptec AHA-294x/AHA-394x or AIC-78xx PCI SCSI Controller (NT 4.0)

or Adaptec AHA-294x/AHA-394x or AIC-78xx PCI SCSI

Controller

For Ultra2 SCSI

Adaptec AHA-294Xu2/AIC-7890\91 PCI Ultra2 SCSI Controller (NT 4.0)

Click the Remove button.

If you are sure you are removing the correct host a dapt er t y pe, click Yes.

Click Yes to restart the computer and initialize chan ges. Click No to return to the SCSI Adapters window.

Windows NT Setup does not delete the device driver

Note:

from your system disk; it only updates Windows NT software configuration information so that the device driver is no longer loaded during system bootup.

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Microsoft Windows NT Installation

Swap pi n g a H ost Adapt er

Swapping a 7800 Family host adapter for a non-7800 Family host adapter is similar to the procedure for adding a host adapter. The important distinction is that you make all software configuration changes while Windows NT is running and before you make the hardware changes.

If you do not install the driver that comes with the

Note:

new host adapter, it may result in a Windows NT boot failure.

To swap adapters, follow these steps:

Install the driver fo r the 7800 Family h ost adapt er by following

the steps in Installing the Driver When Wind ows NT is Already Installed on page 2-5.

It is not essential to remove the device driver for the h ost adapter you are replacing. Windows NT dynamically detects the absence or presence of host adapter hardw are, and no problems should arise if you leave the existing device driver installed. You may remove the device driver later, after you have successfully rebooted Wi nd ows NT. However, if you leave the driver installed, the system alerts you with an error message of the extra device driver every time you boot. See Remov ing a Host Ad ap ter on page 2-12.

Once the new device driver is installed, shu t down Windows

NT and replace the existing host adapter with th e 7800 Family host adapter.

Restart y our computer and Wind ows NT. It is possible that

some drive letter assignments may change from the previous configuration.

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Adaptec 7800 Family Manager

Troubleshooting

Problems and Solutions

I made changes to the host adapter configuration and Windows NT no longer boots!

The boot manager for Windows NT contains recovery logic to allow you to return to the last known good configuration. If you have changed your host adapter configuration and Windows NT no longer boots, follow these steps to recover:

Undo an y h a rdwa re cha n g es you have ma de to the com p uter since it was last operational.

Reboot the computer. Watch the display carefully duri ng bootup. If the following message appears, press the Spacebar and foll ow the instructions on the screen to co ntinue booting with the last known good configuration:

Press spacebar NOW to invoke the Last Known Good menu

Once your computer is operational again, check all of the hardwar e and software configuration changes you want to make. Look specifically for conflicts with parts of the existing system con f iguration that a re not being chan ged.

Error Codes

Error codes generated by the be viewed by opening the Windows NT Event Viewer error logs.

To view events generated by the driver, follow these steps:

Double-click the Event Viewer icon in the Administrativ e Tools program group.

Error codes generated by th e driver show up as Event I D 11. Error codes generated by th e SCSIPort show up as Even t ID 9.

To view event details, select System from the Log menu. Double-click the has an Event ID of 11 . (There may be none or multiple driver events.)

The top portion of the Event Detail dialog box displays information such as th e ti me that th e ev e n t wa s g e ne rated, th e computer on which the event occurred (in case of remote

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aic78xx.sys

aic78u2.sys

driver can

driver event that

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