Adding SCSI host adapters and peripherals

Adding SCSI host adapters and peripherals

A SCSI host adapter provides the interface between the PC system bus and the SCSI bus. It controls access to SCSI peripherals connected to the SCSI bus, transfers data between the peripherals and main memory, and relays commands, status information, and messages. For more information about SCSI, see ``SCSI addresses''.

You may need to run a setup program or configuration utility to configure a new adapter. On ISA and some MCA bus machines, you may need to change the interrupt vector and I/O addresses set on the host adapter to avoid conflicts with existing adapters. You should also disable the BIOS on secondary controllers that you install. See ``Using the manufacturer's setup program'' and refer to your hardware documentation for detailed instructions.

A host adapter is configured into the system when you first install one of the peripheral devices connected to the SCSI bus that it controls. See ``Adding a SCSI peripheral device''.

The number of different SCSI host adapters that can be configured for use with your system should be specified in the hardware documentation. See ``New features in this release'' for information about new mass storage drivers supported in this release.

Information on diagnosing and fixing problems is presented in ``Troubleshooting SCSI host adapters''.

Next topic: SCSI addresses

© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003