
Symbios SYM22902 PCI to Ultra2 SCSI Dual Channel Low Profile PCI Host Adapter
1-1
Chapter 1
Using the SYM22902
Low Profile PCI Host
Adapter
This chapter describes the SYM22902 Low Profile PCI Host Adapter
interface to PCI computer systems and includes these topics:
Section 1.1, “General Description,” page 1-1
Section 1.2, “Features,” page 1-2
Section 1.3, “Benefits of LVD Link,” page 1-5
Section 1.4, “TolerANT Technology,” page 1-6
1.1 General Description
The LSI Logic Symbios
SYM22902 PCI to Ultra2 SCSI Dual Channel
Low Profile PCI Host Adapter provides two SCSI-3, Ultra2 SCSI
interfaces to PCI computer systems that require BIOS support on the
add-in SCSI adapter. Installing this adapter in your PCI system allows
connection of SCSI devices over a SCSI bus.
The SYM22902 host adapter provides two independent Ultra2 SCSI
channels. The external channel on the SYM22902 board supports Low
Voltage Differential (LVD) and Single-Ended (SE) SCSI, while the internal
channel supports LVD SCSI only. The SYM22902 is a SCSI solution for
an 1U and 2U size server. This board can support legacy fast SCSI
devices, Ultra SCSI devices, and the newest Ultra2 SCSI devices on the
appropriate connections.
The Symbios Storage Device Management System (SDMS) software
operates the board. The design of the board does not prevent other SCSI
software from being used with it. BIOS support for this host adapter is
incorporated on the board in a 128K Flash device.
This guide and the LSI Logic
Symbios PCI Storage Device Management
System SDMS 4.0 User’s Guide
contain product information and