Adaptec AHA-3980 Manuel utilisateur

AHA-3980/3980W/3985/3985W Quick Reference:

Hardware Installation

Part Number: 510673-00, Rev. D

Print Spec Number: 492990-00

Current Date: 10/3/95 ECN Date: 10/10/95

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AHA-3980/3980W

AHA-3985/3985W

MultiChannel PCI-to-SCSI RAID Adapters

Quick Reference:

Hardware Installation

Document Title: AHA-3980/3980W/3985/3985W Quick

Reference: Hardware Installation

Part Number: 510673-00, Rev. D

Print Spec Number: 492990-00

Current Date: 10/3/95 ECN Date:10/10/95

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This guide explains how to install the AHA®-398x

RAID adapters: the AHA-3980, AHA-3980W,

AHA-3985, and AHA-3985W. The guide contains the

information most users need to quickly install the

RAID adapters. If you have never installed SCSI devices,

you may prefer to use the detailed installation instruc-

tions in AHA-3980/3980W/3985/3985W User’s Guide.

READ THIS FIRST!

Before you continue, make sure your system meets

the following minimum requirements. If it does not,

the AHA-398x will not work!

■The motherboard chipset and system BIOS must

support

– PCI-to-PCI bridges

– A 64-KByte BIOS

– Multiple interrupts

– at least one full length PCI slot

To determine whether your motherboard pro-

vides this support, contact your vendor, or call

Adaptec’s Interactive Fax system for a list of com-

patible motherboards (the number is on page 12).

■The computer must comply with PCI Rev. 2.0.

■If you are running NetWare 3.11, the

clib.nlm

must

be version 3.12 or above. See the Troubleshooting

Checklist on page 10 for more information.

AHA-398x Overview

Each AHA-3980 and AHA-3980W has two SCSI chan-

nels: A and B. Each AHA-3985 and AHA-3985W has

three SCSI channels: A, B, and C.

The AHA-3980 and AHA-3985 are 8-bit adapters.

Each channel on these adapters supports up to seven

8-bit SCSI devices. The AHA-3980W and AHA-3985W

are 16-bit adapters. On these adapters, each channel

supports up to 15 SCSI devices. All 15 devices can be

16-bit, or you can combine 8-bit and 16-bit devices. If

you combine devices, a maximum of seven can be

8-bit devices.

AHA-398x adapters support SCSI devices running

under Novell NetWare 3.11, 3.12, and 4.x. They also

support most SCSI CD-ROM drives and hard disk

Document Title: AHA-3980/3980W/3985/3985W Quick

Reference: Hardware Installation

Part Number: 510673-00, Rev. D

Print Spec Number: 492990-00

Current Date: 10/3/95 ECN Date:10/10/95

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drives running under MS-DOS 5.0 and above. For

information on supported devices, see the

AHA-3980/3980W/3985/3985W User’s Guide.

AHA-398x Layout

AHA-3980 and AHA-3985

AHA-3980W and AHA-3985W

1 Used when sharing devices between two computers. See AHA-3980/3980W/

3985/3985WUser’sGuide for details.

1 Used when sharing devices between two computers. See AHA-3980/3980W/

3985/3985WUser’sGuide for details.

Location Description

J1 External SCSI connector - Channel A

J2 Multiplecomputer termination jumper - Channel A1

J3 Multiplecomputer termination jumper - Channel B1

J4 (AHA-3985 only) Multiple computer termination jumper - Channel C1

J6 LEDconnector

J8 Internal SCSI connector - Channel A

J9 Internal SCSI connector - Channel B

J10 (AHA-3985 only) Internal SCSI connector - Channel C

J13 PCI interrupt jumper

Location Description

J2 Multiplecomputer termination jumper - Channel A1

J3 LEDconnector

J4 Internal SCSI connector - Channel A

J5 Multiplecomputer termination jumper - Channel B1

J6 Internal SCSI connector - Channel B

J7 (AHA-3985W only) Multiplecomputer termination jumper- Channel C1

J8 (AHA-3985W only) Internal SCSI connector - Channel C

J10 PCI interrupt jumper

J12 External SCSI connector - Channel A

J2 J8 J9 J10J4J1 J3 J6

J13

J2 J4 J6 J8J7

J12 J5 J3

J10

Document Title: AHA-3980/3980W/3985/3985W Quick

Reference: Hardware Installation

Part Number: 510673-00, Rev. D

Print Spec Number: 492990-00

Current Date: 10/3/95 ECN Date:10/10/95

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Installing the AHA-398x

WARNING: Unplug the computer from its

power source before you begin.

1Remove the cover from the computer case.

2Locate an unused, unobstructed 5-volt PCI bus

slot that supports bus mastering.

AHA-398x host adapters require a full-length PCI

slot. If your system has only one full-length slot

and the slot is already occupied, you will need to

move the existing board to another slot.

3Remove the corresponding slot cover from the

back of the computer chassis. Keep the screw that

held the cover in place.

Note: We recommend that you leave the PCI

interrupt jumper in place (see the AHA-398x

layout diagrams on page 2). This is the

default setting for PCI motherboards that

support PCI interrupts A and B.

4If the PCI slot has a card guide for aligning cards,

insert the end of the AHA-398x in the card guide.

5Carefully press the AHA-398x into the PCI slot

until the adapter is securely seated in the slot.

6Attach the AHA-398x bracket to the computer

chassis with the screw you removed in step 3.

7(Optional) On most computers, an LED light on the

front computer panel indicates activity on the hard

disk. You can have the light indicate activity on the

AHA-398x instead; the LED will no longer light

when non-SCSI disk drives are active. To change

the LED, unplug the LED cable from the mother-

board (for the cable location, see your computer

documentation); then connect the cable to the LED

connector on the AHA-398x (see AHA-398x Layout

on page 2). If the LED has a two-position cable,

connect it to pins 1 and 2 of the LED connector (the

two pins nearest the outer edge of the board).

Document Title: AHA-3980/3980W/3985/3985W Quick

Reference: Hardware Installation

Part Number: 510673-00, Rev. D

Print Spec Number: 492990-00

Current Date: 10/3/95 ECN Date:10/10/95

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Do not replace the chassis cover or reconnect the

power yet!

Connecting SCSI Devices

You can attach internal devices to Channel A, B, or

C. External devices must attach to Channel A, which

is the only channel with an external connector.

Remember, each channel on an AHA-3980 or

AHA-3985 supports up to seven 8-bit devices. If you

attach one SCSI device to the internal connector of

Channel A, for example, you can attach up to six

devices to the external connector—a total of seven

devices on the channel. On an AHA-3980W or

AHA-3985W, each channel supports up to 15 devices

—either 16-bit devices alone or a combination of

16-bit and up to seven 8-bit devices.

Caution: AHA-398x adapters support only

single-ended SCSI devices. Do not connect dif-

ferential SCSI devices to the adapter. To deter-

mine the device type, read the device

documentation or contact your vendor.

General Considerations

When you attach the SCSI devices, remember the fol-

lowing constraints:

■If you combine 8-bit and 16-bit devices on an

external AHA-3980W or AHA-3985W channel,

you must attach the 8-bit devices after the 16-bit

devices; once you step down to an 8-bit device,

you cannot step back up to a 16-bit device. You

need a 68-pin-to-50-pin connector to attach the

last external 16-bit device to the first 8-bit device.

■On each channel, the total length of cabling (inter-

nal and external) should not exceed

– three meters (9.8 feet) if you use Fast SCSI data

transfer rates such as the default rate (see Maxi-

mum Sync Transfer Rate in the table on

page 8)

Document Title: AHA-3980/3980W/3985/3985W Quick

Reference: Hardware Installation

Part Number: 510673-00, Rev. D

Print Spec Number: 492990-00

Current Date: 10/3/95 ECN Date:10/10/95

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– six meters (19.7 feet) if you are using 5 MByte/

sec asynchronous or synchronous data transfer

rates

Connecting Internal SCSI Devices

The AHA-398x kit includes SCSI ribbon cables, each of

which has several connectors for attaching internal

devices to the AHA-398x. The connector at one end of

each cable attaches to a passthrough terminator. This

connector can still attach to a SCSI device, even with

the terminator in place.

Note: If the cables do not have enough con-

nectors for all SCSI devices, you can purchase

additional cables from Adaptec at the number

on page 12.

To attach the internal devices, follow these steps:

1Attach the SCSI connector at one end of the rib-

bon cable (the end without the terminator) to the

internal connector for Channel A, B, or C, match-

ing pin 1 on the ribbon cable with pin 1 on the

channel connector. Pin 1 on the ribbon cable is

usually marked with a contrasting color on one

edge of the cable. Pin 1 on the channel connector

is marked with a 1.

2Attach the SCSI connector on the passthrough ter-

minator to the SCSI connector on the first SCSI

device, matching pin 1 on the terminator connec-

tor with pin 1 on the device. Pin 1 on device con-

nectors is usually marked by a triangle or a 1.

Note: If you use cables without a passthrough

terminator, you must terminate the end SCSI

device; see Terminating the SCSI Bus on page 6.

3To connect other internal SCSI devices, attach

them to the other connectors on the ribbon cable,

matching pin 1 on the ribbon cable with pin 1 on

the device connector.

Document Title: AHA-3980/3980W/3985/3985W Quick

Reference: Hardware Installation

Part Number: 510673-00, Rev. D

Print Spec Number: 492990-00

Current Date: 10/3/95 ECN Date:10/10/95

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Connecting External SCSI Devices

For each external SCSI device, obtain a high-quality

external cable with a single-ended impedance rangeof

80–110 ohms. The cables should be at least 30 cm

(11.8 inches) long. Use the cables to connect external

SCSI devices as follows:

1Attach the SCSI connector at one end of an exter-

nal SCSI cable to the external Channel A connec-

tor (see the board layout on page 2). External

cable connectors can be plugged-in only one way.

2Attach the connector at the other end of the external

cable to either SCSI connector on the SCSI device.

3Connect other external SCSI devices sequentially

from one device to the next, with no branching

(see the following figure).

Terminating the SCSI Bus

Each end of the SCSI bus must be electrically termi-

nated. Follow these instructions:

1 See the device documentation for instructions.

Devices Attached Termination Procedure

Internal devices

only (Channel A,

B,orC)

1. The channel is at one end of the bus. Channel termina-

tion isenabled by default; keep this setting.

2. The passthrough terminator providestermination at the

otherendof thebus.

3. Disable termination on all other SCSI devices, including

anydevice attached to thepassthroughterminator.1

External devices

only (Channel A) 1. The channel is at one end of the bus. Channel termina-

tion isenabled by default; keep this setting.

2. Terminatethe lastexternal SCSI device.1

3. DisableterminationforallotherexternalSCSIdevices.1

Both internaland

external devices

(Channel A)

1. The passthrough terminator providestermination atone

end of the bus.

2. Terminatethe lastexternal SCSI device.1

3. Change the channel termination setting to Disabled.

4. Disable termination for all other SCSIdevices.1

External

SCSI Cables

Terminator

Document Title: AHA-3980/3980W/3985/3985W Quick

Reference: Hardware Installation

Part Number: 510673-00, Rev. D

Print Spec Number: 492990-00

Current Date: 10/3/95 ECN Date:10/10/95

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Setting SCSI IDs

Assign each device on a channel, including the chan-

nel itself, a unique SCSI ID—no duplicate IDs are

permitted on a channel. Allowable IDs are 0 through

7 for SCSI devices on the AHA-3980 and AHA-3985.

On the AHA-3980W and AHA-3985W, allowable IDs

are 0 through 15. ID 7 has the highest priority on the

channel. The priority of the remaining IDs, in

descending order, is 6 to 0, then 15 to 8.

We recommend using the following IDs:

■Leave the channel (RAID adapter) ID at the

default, 7.

■If another adapter is attached to the channel,

make sure its ID is not also 7. If it is, change either

the channel ID or the adapter ID to 6.

■If you are booting from a SCSI hard disk, assign it

ID 0 and connect it to Channel A. (If you prefer to

connect it to Channel B or C, see AHA-3980/3980W/

3985/3985W User’s Guide for special instructions.)

For instructions on changing the channel ID, see

Changing AHA-398x Settings on page 8. For instruc-

tions on changing the IDs of other SCSI devices, see

the device documentation.

Completing Installation

Put the chassis cover back on the computer, follow-

ing the directions in the computer documentation.

Be sure all power switches are in the OFF position,

then reconnect power cables to your computer.

To verify that the SCSI devices work properly, turn ON

the SCSI device(s) first, then turn ON the computer.

When the computer boots, the AHA-398x BIOS sign-

on message should appear on the screen. This mes-

sage lists installed SCSI devices and information

about the BIOS. If the AHA-398x BIOS message does

not appear, see Troubleshooting Checklist on page 10.

Document Title: AHA-3980/3980W/3985/3985W Quick

Reference: Hardware Installation

Part Number: 510673-00, Rev. D

Print Spec Number: 492990-00

Current Date: 10/3/95 ECN Date:10/10/95

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Note: If you own a previously purchased

Adaptec AHA-3980/3985 RAID adapter with

software version v.1.01 or earlier, you can

obtain a free upgradekit from Adaptec to add

bootable array support to your adapter. Con-

tact Adaptec Technical Support for this BIOS

and software upgrade kit. The kit includes

instructions on how to install the upgrade.

Changing AHA-398x Settings

The AHA-398x has the factory default settings

shown in the following table. These settings are cor-

rect for most computers.

You can change the settings with SCSISelect®, the

configuration utility that is built into the AHA-398x.

To do so, follow these steps:

1If you have not installed the AHA-398x, do so now.

2Start or reboot your computer.

3When the SCSISelect message appears, press

Ctrl-A. The SCSISelect screen appears, listing the

channels. The PCI bus number for the AHA-398x

precedes the channel letter. Channel A on PCI

bus 1, for example, appears as 01:A.

1 Each channelhasitsown setting.Thedefaultshownis for each channel.

Host Adapter and SCSI Bus Settings Default Setting

HostAdapter SCSIID17

SCSIParity Checking Enabled

HostAdapter SCSITermination1Enabled

Individual Settings for Each SCSI Device Default Setting

Initiate Sync Negotiation Yes

Maximum Sync Transfer Rate:

AHA-3980 and AHA-3985

AHA-3980W and AHA-3985W 10 MBytes/sec

20 MBytes/sec

Enable Disconnection Yes

SendStart Unit SCSICommand No

Include In BIOS Scan Yes

(AHA-3980W and AHA-3985W only) Initiate Wide Negotiation Yes

Document Title: AHA-3980/3980W/3985/3985W Quick

Reference: Hardware Installation

Part Number: 510673-00, Rev. D

Print Spec Number: 492990-00

Current Date: 10/3/95 ECN Date:10/10/95

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Note: In the remaining steps, you are

instructed toselect items. To select an item, use

the ↑ and ↓keys to move the cursor to the

item, then press the Enter key.

4Select the channel you want to configure.

5Select Configure/View Host Adapter Settings.

6The Configuration menu appears, listing the basic

settings for the SCSI bus interface. To display the

individual device settings, select SCSI Device

Configuration from the Configuration menu.

Note: If you do not know the SCSI ID of a

device you want to configure, press Esc until

the Options menu appears, then select SCSI

Disk Utilities. A list of SCSI devices and their

IDs appears. Write down the ID of the device.

Press Esc to redisplay the Options menu,

then reselect SCSI Device Configuration.

7To change a setting, select it. From the pop-up

menu that appears, select a new setting.

Note: You can press F6 to restore the original

default settings.

8When finished changing settings, press the Esc

key until an onscreen message prompts you to

save the changes. To save the changes, select Yes.

To cancel the changes, select No.

9Press the Esc key until an onscreen message

prompts you to exit the utility, then select Yes.

10 Press any key to reboot the computer. The

changes take effect after the computer reboots.

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