3Overview SCSI ID 7 has the highest priority on the SCSI bus. The priorityof the remaining IDs, in descending order, is 6 to 0, then 15 to 8. The Adaptec SCSI Card 29160 is preset to SCSI ID 7 and shouldnot be changed. This gives it the highest priority on the SCSIbus. Most internal SCSI hard disk drives come from the factory pre-set to SCSI ID 0. If you have 8-bit (or Narrow) SCSI devices, they must use SCSIIDs 0, 1, 2, 3, 4, 5, or 6. SCSI ID 0 is recommended for the firstSCSI hard disk drive. If you are booting your computer from a SCSI hard disk driveconnected to the Adaptec SCSI Card 29160, the Boot SCSI IDsetting in the SCSISelect utility must correspond to the SCSI IDof the device from which you are booting. By default, the BootSCSI ID is set to 0. We recommend that you do not change thissetting. In Windows ® 95/98, you can use the Device Manager to deter-mine which SCSI ID is assigned to each installed SCSI device.Terminating the SCSI BusTo ensure reliable communication on the SCSI bus, the ends of theSCSI bus must be properly terminated. This is accomplished whenthe device at the end of each cable, or the end of the cable itself, has aterminator installed (or enabled). Terminators must be removed, ortermination must be disabled, on devices between the ends of eachcable.Since the method for terminating a SCSI device can vary widely,refer to the device’s documentation for instructions on how toenable or disable termination. Here are some general guidelines fortermination: Internal Ultra160 and Ultra2 SCSI devices come from the fac-tory with termination disabled and cannot be changed. Propertermination for internal Ultra160 and Ultra2 SCSI devices isprovided by a 68-pin Internal LVD (low voltage differential)SCSI cable, which has a built-in terminator at its end.

Overview

Understanding SCSI

Terminating the SCSI Bus

Troubleshooting

Troubleshooting in Windows 95/98

Common Error Messages

Using the Adaptec SCSI Card 29160 and SCSI De vices

Using Ultra160 Hard Disk Drives

Combining SCSI and Non-SCSI Devices

Installing Multiple SCSI Cards

Adaptec SCSI Card 29160 with SCSISelect

Starting SCSISelect

SCSI Bus Interface Definitions

Advanced Configuration Options

Using SCSI Disk Utilities

Connecting SCSI Devices

Maximum Cable Lengths

Adaptec 1821900 Reference

terminate the ends

installation guide

PowerDomain 29160

Device Drivers

device drivers

Installing the Driver When Installing Windows NT

Completing a Fresh Windows NT 4.0 Installation From CD-ROM

Installing the Driver When Windows NT is Already Installed

Using Advanced Configuration Parameters

Using Driver-specific Parameters

Using Windows NT and the Host Adapter

Swapping a Host Adapter

Error Messages

DOS Drivers for CD-ROM Access

Update Windows 95 or 98 Installation Disks

Installing the Driver When Installing Windows 95/98

Installing the Driver When Installing Windows 98

Installing the Driver When Windows 95/98 is Already Installed

Updating the Driver for Windows 95

Problems and Solutions

Installing the Driver When Installing NetWare

NetWare 4.12/4.2

NetWare 5.0

Installing the Driver When NetWare is Already Installed

Loading the Driver at Server Bootup

Using the Load Command Line Options

Bit Mask Options

Using NetWare and the Host Adapter

Using the NetWare Tape Backup

Using a CD-ROM with NetWare

Optimizing Performance

Installing the Driver When Installing UnixWare

Installing the Driver When UnixWare is Already Installed

Back Up the Computer

Modify the New System File

Rebuild the UnixWare Kernel

Using UnixWare and the Host Adapter

Removing the Driver

connecting external scsi devices

1821900

Adaptec 1821900 Reference

Product

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