AMD SCSI host adapter subsystem
The amd host adapter driver provides
a Storage Device Interface (SDI)-compliant interface
to various SCSI solutions
based on the Am53C974 PCscsi and Am73C974 PCnet-scsi
The Am53C974 is a Bus Mastering Fast SCSI Controller Chip
for PCI Systems,
whereas the Am73C974 is a combination Ethernet/SCSI controller.
The Am53C974 chip is found on the motherboard of various systems
and on controller cards from various manufacturers.
The amd host adapter driver enables SDI-compliant target
drivers (such as sd01 and st01) to communicate
on the SCSI bus with target controllers and logical units.
This allows normal access to mass-storage devices
using standard system interfaces and filesystems.
It is also possible for an application to access the SCSI bus
subsystem directly by using the pass-through interface.
Extreme caution should be exercised when using the pass-through interface.
It is possible to interfere with normal system I/O and cause hangs
if pass-through is used to an active device.
Pass-through should only be used to a device that is otherwise quiescent.
© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 25 April 2004