Adaptec PowerDomain 29160 Manual de usuario

INSTALLATION

GUIDE (OEM)

ADAPTEC SCSI CARD 39160

ULTRA160 SCSI CONTROLLER

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39160_OEM_InsGd.book Page 2 Thursday, October 14, 1999 10:18 AM

The Adaptec SCSI Card 39160 enables you to connect up to 30

SCSI devices—such as very large arrays of high-performance

HDDs, external storage subsystems, clustered configurations,

Ultra160 hard disk drives, scanners, and CD-ROM drives—to

any Intel-based computer with 64- or 32-bit PCI expansion slots.

The Adaptec SCSI Card 39160 has two independent SCSI chan-

nels, each with a maximum throughput of 160 MBytes/sec. SCSI

Channel A (marked “CH 1/A” on the card) has two internal con-

nectors and one external connector. SCSI Channel B (marked

“CH 2/B” on the card) has one internal and one external

connector.

You can connect Ultra160 and Ultra2 SCSI devices to the 68-pin

Low Voltage Differential/Single-Ended (LVD/SE) connectors on

both SCSI channels. Or you can operate the newer Ultra160 and

Ultra2 devices at their maximum speed on Channel B while at

the same time using legacy SCSI devices on Channel A.

Although the Adaptec SCSI Card 39160 is a 64-bit PCI card, it

also works in a 32-bit PCI slot. When installed in a 32-bit PCI

slot, the card automatically runs in the slower 32-bit mode.

This installation guide explains how to

•Install the Adaptec SCSI Card 39160

•Set up SCSI devices

•Connect SCSI devices

INTRODUCTION

68-pin internal LVD/SE

connector Channel A

68-pin internal LVD/SE

connector Channel B

68-pin external

LVD/SE connector

Channel B

68-pin external

LVD/SE connector

Channel A

Narrow

connector

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Installation Guide

Support for Older SCSI Devices

We recommend that if you have single-ended Ultra SCSI and ear-

lier SCSI devices you connect them to Channel A of the Adaptec

SCSI Card 39160 and that you connect newer Ultra2 and

Ultra160 SCSI devices to Channel B. This allows the Adaptec

SCSI Card 39160 to support newer Ultra160 and Ultra2 SCSI

devices at speeds up to 160 MBytes/sec while at the same time

supporting Ultra (legacy) devices at speeds up to 40 MBytes/sec.

It also allows you to use longer cable lengths for the newer SCSI

devices. (For more information about the maximum cable

lengths see the Adaptec SCSI Card 39160 User’s Reference.)

The Adaptec SCSI Card 39160 is designed for computer

system original equipment manufacturers (OEMs). Use this

product with the original computer system designed by the

OEM; each OEM tailors their product specifications for their

specific design needs. Adaptec assumes no responsibility for

incompatibility or consequential damages if you use the

Adaptec SCSI Card 39160 in another computer system. All

product support and services are provided by the OEM.

If you connect Wide Ultra/Ultra SCSI devices to the

same SCSI channel as Ultra160 and Ultra2 SCSI devices, the

data transfer rate for the Ultra160 and Ultra2 SCSI devices

will drop to Ultra SCSI performance levels. To achieve maxi-

mum data transfer rates for the newer SCSI devices, be sure to

connect them on their own SCSI channel.

NOTE

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Adaptec SCSI Card 39160

Discharge any static electricity build-up before handling your

SCSI card by touching a grounded metal object (like the exposed

metal parts on the back of your computer).

After you turn off your computer and unplug the power cord,

remove the cover from the computer.

Locate an unused 64-bit PCI expansion slot and remove the

expansion slot cover. If the computer does not have a 64-bit slot,

you can install the card in a 32-bit PCI slot. (The expansion slot

must be compliant with PCI Rev. 2.1 or higher and must support

Bus Mastering.) Save the slot cover screw for use in Step 4.

INSTALLING THE ADAPTEC SCSI CARD 39160

STEP 1

Turn OFF power to the computer and disconnect

the power cord.

WARNING

STEP 2

STEP 3

64-bit PCI slot

32-bit PCI slot

Slot cover

Expansion

slot cover

screw

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Installation Guide

Computers may have vertical or horizontal expansion slots. Refer

to your computer manual to locate the PCI slots. If your com-

puter is a tower model, lay it on its side to allow for easier

installation of the Adaptec SCSI Card 39160.

Insert the Adaptec SCSI Card 39160 in the 64-bit (or 32-bit) PCI

expansion slot; press down firmly until the card clicks into place,

then replace the slot cover screw. When installed properly, the

card should appear level with the expansion slot, as shown below.

There are several things you may need to do to your SCSI devices

before you connect them to the Adaptec SCSI Card 39160:

•Check the SCSI IDs

•Set the termination

•Connect the power cables

Since setup can vary from device to device, always refer to the

device’s documentation for specific instructions.

Be careful when inserting the Adaptec SCSI Card

39160 in a PCI slot. Some 32-bit slots will not accommodate

it, and the card may break if you force it into the slot.

WARNING

STEP 4

SETTING UPSCSI DEVICES

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Adaptec SCSI Card 39160

Below are some guidelines for setting SCSI IDs and termination

on your devices. Refer to the Adaptec SCSI Card 39160 User’s Ref-

erence for more information on these topics.

Check the SCSI IDs

The Adaptec SCSI Card 39160 and each device you connect to it

must have a unique SCSI ID number ranging from 0 to 15 on

each channel. No two devices on the same SCSI channel can have

the same SCSI ID.

The Adaptec SCSI Card 39160 is preset to ID 7 for each channel

and should not be changed. If you boot from a SCSI hard disk,

make sure the hard disk SCSI ID is set to 0. (Most SCSI hard disks

are preset to SCSI ID 0 at the factory.) The SCSI IDs for internal

devices are usually set with jumpers; SCSI IDs for external

devices are usually set with a switch on the back of the device.

Terminate the Ends

To ensure reliable communication on the SCSI bus, the device at

the end of each cable, or the end of the cable itself, must have a

terminator installed (or enabled). Terminators must be removed,

or termination must be disabled, on devices between the ends of

each cable.

When connecting Ultra160 or Ultra2 SCSI devices, the

SCSI bus must be terminated either on the end of the cable

(with a permanent terminator) or with a separate terminating

connector. Ultra SCSI and earlier single-ended devices can

terminate the bus directly from the device. If you use an Ultra

SCSI terminator on an LVD Ultra160 and Ultra2 SCSI bus

you will force the bus to Single-ended mode, limiting the

speed and cable distance. For this reason be sure that you

have the necessary Ultra160 or Ultra2 cable or terminator

before installing the Ultra160 SCSI devices.

NOTE

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Installation Guide

You can connect a total of 30 SCSI devices to the Adaptec SCSI

Card 39160,with up to 15 devices on each SCSI channel. Before

connecting devices, be sure to review Setting Up SCSI Devices on

page 4.

Connecting Internal Ultra160 and Ultra2 Devices

A special 68-pin internal LVD cable is needed to connect internal

Ultra160 or Ultra2 SCSI devices. If your cables are not marked,

you can identify most LVD cables as having twisted pairs of the

flat ribbon cable between the device connectors. Some cables are

laminated so that they lay flat. Internal LVD cables usually have a

terminator built into the end of the cable.

The Adaptec SCSI Card 39160 has two separate Ultra160 SCSI

channels, as shown in the figure on page 1. Each channel has an

internal LVD/SE connector to which you can connect internal

SCSI devices. Follow these steps to connect your internal

Ultra160 and Ultra2 devices:

Locate a 68-pin internal LVD SCSI cable, which may have either

twisted wires or flat wires, as shown here.

CONNECTING SCSI DEVICES

We recommend that you keep your Ultra160 and

Ultra2 SCSI devices on a separate SCSI channel from your

Ultra SCSI devices. This allows the newer Ultra160 and

Ultra2 SCSI devices to transfer data at their maximum speed.

NOTE

STEP 1

Terminated end Non-terminated end

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Adaptec SCSI Card 39160

Plug the non-terminated end of the cable(s) to the internal

LVD/SE connector(s).

Plug the internal Ultra160 and Ultra2 SCSI devices to the other

cable connectors, starting with the connector at the terminated

end of the cable.

Connect a power cable from your computer’s internal power sup-

ply to each internal SCSI device.

STEP 2

Cables can be plugged into

one or both connectors

STEP 3

Internal Ultra 160 and Ultra2 SCSI devices come from

the factory with termination disabled and cannot be changed.

Proper termination is provided by the terminator at the end

of the LVD SCSI cable.

Plug first device

to this connector

Ultra160 or Ultra2

SCSI devices

Built-in terminator

on cable

NOTE

STEP 4

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Installation Guide

Connecting Wide SCSI Devices

You can connect Wide SCSI devices to the internal LVD/SE con-

nectors. If you do this, we recommend that you connect them to

the SCSI Channel A LVD/SE connector and that you connect all

Ultra160 and Ultra2 devices to the SCSI Channel B connector.

Follow these steps to connect Wide SCSI devices:

Locate a 68-pin internal Wide SCSI cable.

Plug one end of the cable to the Channel A internal 68-pin con-

nector on the Adaptec SCSI Card 39160.

Plug the other end of the cable to a terminated Ultra/Fast Wide

SCSI device.

If you have other Ultra/Fast Wide SCSI devices, attach them to

the connectors between the two ends of the cable. Be sure these

other devices are unterminated.

Connect a power cable from your computer’s internal power sup-

ply to each internal device.

STEP 1

STEP 2

STEP 3

STEP 4

STEP 5

39160_OEM_InsGd.book Page 8 Thursday, October 14, 1999 10:18 AM

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