Specifications

4 I
lnstalling Software
Drivers for MS-DOS
After configuring your system for use with the SCSI adapter, you
may need to install software drivers so that your operating system
recognizes and accesses the SCSI devices.
If you are using MS-DOS and you want to install more than two
SCSI hard disk drives or removable media support, you need to
install the Advanced SCSI Programming Interface (ASPI™) MS-DOS
Manager. MS-DOS uses the ASPI MS-DOS Manager to
communicate with the SCSI adapter card and to access SCSI
devices connected to the adapter card.
You can use the ASPI MS-DOS Manager with the SCSI Adapter
configured for either Standard or Enhanced mode.
If you plan to use a SCSI drive that is not installed under the BIOS
of the SCSI adapter card, you also need to install the ASPI disk
driver and use the AFDISK program to partition the hard disk
drive. The ASPI disk driver and the AFDISK program are described
later in this chapter.
Before you install the ASPI MS-DOS Manager, make sure MS-DOS
is installed on your computer.
The ASPI MS-DOS Manager
The ASPI MS-DOS Manager conforms to the Virtual DMA Services
(VDS) specification. This standard enables a bus-master device,
such as the SCSI adapter card, to obtain the physical address of
software running in the protected mode of a 486 computer. VDS
eliminates the need for a separate buffer improving overall system
performance.
Installing Software Drivers for MS-DOS 4-1