Adaptec AHA-1540B Installation Guide download pdf (Page 4)

Main Menu Options

Configure/View Host Adapter Settings

Configuration Screen: Selecting Configure/View Host

Adapter Settings

gives you access to the basic soft-

ware configurable options. These options are used

to reconcile I/O conflicts, change transfer rates, and

set Host Adapter Termination. The host adapter

BIOS Base Address is also displayed.

SCSI Device Configuration and Advanced Configura-

tion Options:

These screens are accessed from the

Configuration screen described above. The AHA-

1540CF/1542CF offers a number of options for ad-

vanced applications. Fast SCSI, Floptical support,

and an alternate floppy controller address are en-

abled here.

Note

To protect you from data loss, the host adapter will sus-

pend operation if it detects old software. Certain advanced

features are incompatible with early SCSI driver software

versions.

SCSI Disk Utilities

Select SCSI Disk Utilities from the main options

menu. SCSI IDs 0 through 7 are then displayed,

showing SCSI devices installed at each address, in-

cluding non-disk devices. Selecting one of the in-

stalled devices causes the utilities menu to appear.

Format Disk accesses the Adaptec SCSI Low-Level

Format utility. Most SCSI devices are pre-format-

ted, and do not need re-formatting.

Verify Disk Media scans the selected device’s media

for defects. If bad blocks are encountered, a prompt

will ask if you want the block re-assigned; if you se-

lect

Yes, that block will no longer be used.

Host Adapter Diagnostics

Not all ISA class systems are 100% IBM compat-

ible and may not properly support bus master

DMA transfers, necessary for running multi-task-

ing OS/2

, Windows, UNIX

, and others.

Host Adapter Diagnostics will do a bus master DMA

test to memory. There should be no device drivers

or TSR (Terminate and Stay Resident) programs

loaded when the test is run. If the test fails, try

lowering the DMA transfer rate to a lower setting

from the

Configure/View Host Adapter Settings menu.

5 Loading the I/O

Operating Environment Software

DOS/Windows

Under MS

-DOS 5.0 or higher, up to seven SCSI

hard disk drives can be connected to the AHA-

1540CF/1542CF without additional software. (Older

versions of DOS support up to two hard disk drives.)

The host adapter treats removable media drives as

hard disk drives provided you enable

Treat Remov-

able Disks Under BIOS as Fixed Disks

in Advanced Con-

figuration Options

, and do not remove the media

while your computer system power is on.

Additional software is required if you desire to do

the following:

•

Remove and insert CD-ROM, removable hard

disks, and other large media cartridges while

your computer is running.

•

Support more than two hard disk drives under

versions of DOS prior to MS-DOS 5.0.

•

Use devices other than hard disk drives such as

SCSI tape, CD-ROM, scanners, etc.

•

Use the Adaptec Floptical utility program to for-

mat high-density floptical diskettes.

Note

Floptical drives are only supported under DOS and Win-

dows at the time of this document’s publication.

Novell NetWare

NetWare

4.x includes the Adaptec I/O Operat-

ing Environment and does not require addi-

tional software.

•

To load software for Novell

NetWare 286 2.x

and 386 3.x, follow the instructions included in

the ASW-1440 software package.

OS/2

IBM

OS/2 2.0 and Microsoft

OS/2 1.30.1 include

the Adaptec I/O Operating Environment and do not

require additional software.

•

To use the AHA-1540CF/1542CF under MS or

IBM OS/2 1.3, follow the instructions in the

ASW-1220/1420 version 1.3 software product.

UNIX

Major versions of UNIX include the Adaptec I/O

Operating Environment and support the AHA-

1540CF/1542CF without additional software. Cur-

rent versions of SCO

UNIX, USL UNIX, and

Sunsoft Interactive UNIX support the AHA-

1540CF/1542CF directly.

6 Troubleshooting

If Your Computer Will Not Boot From a SCSI Disk Drive

If both SCSI and non-SCSI disk drives are in-

stalled, then the non-SCSI disk drive is always the

boot device. If there is no non-SCSI disk drive:

1. Make sure your computer system’s CMOS Setup

is set to

No Drives Installed, as is required for

SCSI host adapters.

2. Try enabling

Dynamically Scan SCSI Bus for BIOS

Devices

in the Advanced Configuration Options area

of the SCSISelect utility. See Section .

3. Make sure the hard disk SCSI ID is set to ID 0.

The SCSI ID is normally set with jumpers or

switches on the drive. All SCSI devices should

be set to unique SCSI IDs, ranging from 0 to 7.

4. Make sure the SCSI termination is set correctly.

(See Section , Connecting Peripherals, for infor-

mation on SCSI termination.)

5. A low-level format of the SCSI hard disk may be

necessary. Be sure to backup first, then run the

Format

utility through the SCSISelect utility.

Similar utilities for removable media devices are

included in Adaptec’s DOS I/O Operating Envi-

ronment Software, or via the BBS. See Section .

6. Make sure sw5 on the AHA-1540CF is in the

On/Closed position. It must remain in that posi-

tion, even though there is no floppy controller on

that host adapter.

Conflicts With Other Option Cards

Your host adapter and all other devices may not

use or occupy overlapping memory and I/O

addresses. If you experience conflicts:

1. IRQ and DMA Channels may be altered with the

SCSISelect utility.

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