LSI MegaRAID SCSI 320-2 RAID Controller Series 518 - Manual (Page 21)

MegaRAID SCSI 320-2 Hardware Guide 1-1
Copyright © 2002 by LSI Logic Corporation. All rights reserved.
Chapter 1
Overview
This chapter provides an overview of the MegaRAID
®
SCSI 320-2
controller. It contains the following sections:
•
Section 1.1, “SCSI Channels”
•
Section 1.2, “NVRAM and Flash ROM”
•
Section 1.3, “SCSI Connectors”
•
Section 1.4, “Single-Ended and Differential SCSI Buses”
•
Section 1.5, “Maximum Cable Length for SCSI Standards”
•
Section 1.6, “SCSI Bus Widths and Maximum Throughput”
•
Section 1.7, “Documentation”
The MegaRAID SCSI 320-2 controller has two SCSI channels.
Throughput on each SCSI channel can be as high as 320 Mbytes/s.
MegaRAID supports a low-voltage differential SCSI bus or a single-
ended SCSI bus.
The MegaRAID SCSI 320-2 is a high-performance intelligent PCI-to-
SCSI host adapter with RAID control capabilities. The MegaRAID SCSI
320-2 requires no special motherboard PCI expansion slot. The card
includes an Intel 80303 processor. MegaRAID provides reliability, high
performance, and fault-tolerant disk subsystem management.
1.1 SCSI Channels
The MegaRAID SCSI 320-2 has two Ultra320 SCSI channels. One LSI
Logic dual SCSI controller supports both channels. Each SCSI channel
supports up to fifteen SCSI devices.