Tekram Technology DC-820B specification

EISA Fast SCSI Caching Adapter

All versions of MS-DOS support two hard disk drives without adding device drivers. If MS-DOS 5.0 is used, the DC-820B BIOS can handle up to eight devices, including fixed disk and removable media, by enabling the DOS 5 Support enable/disable option during the ECU (EISA Configuration Utility) setup process.

The driver diskettes shipped along with your DC-820B include ASPI (Ad- vanced SCSI Programming Interface) drivers for DOS, NetWare drivers, and UNIX LOCK/UNLOCK utility for removable media devices. Also, the DC-820B comes with a utility program (TOOLBME.EXE) which provides low-level format, mirroring initialization, and disk image copy/compare functions. By implementing the ASPI drivers for DOS, the DC-820B recog- nizes devices formatted by other adapters, such as Adaptec and Mylex, or formats devices that will be recognized by other makers’ host adapters.

A software program, INSTALL.EXE, is included in the driver diskette to ease the DOS driver installation. Further details can be found in the next section.

0.1 Easy DOS Driver Installation Software (INSTALL.EXE)

The DOS driver diskette provides an INSTALL.EXE file to ease the driver installation for your SCSI devices. The driver installation will be neces- sary if: 1. more than two HDDs installed and without DOS 5 Support enabled (sec.1.6.2) or 2. SCSI device(s) other than HDD installed. This software program provides you the information about the adapter and your SCSI devices. After choosing the device(s) which you want to install with the driver(s), this program will update the CONFIG.SYS and AUTOEXEC.BAT files. Further information about drivers and step-by-step installation proce- dures can be found in the Chapter 2 ASPI DRIVER FOR DOS.

The following screens display the procedures of this software:

1). Firstly, this screen shows the information about adapter number (HA#0), I/O port address (Base 330H), DMA channel (DMA 5), interrupt level (IRQ 11), and SCSI ID (ID 7). In this case, there is only one adapter available. If