Avago Technologies LSI SAS 3041X-R - Manual (Page 15)

PCI-X to 3.0 Gbit/s SAS Host Adapters User’s Guide 1-1
Version 2.1 Copyright © 2005, 2006 by LSI Logic Corporation. All rights reserved.
Chapter 1
Introduction
This chapter describes the LSI Logic PCI-X to 3.0 Gbit/s Serial Attached
SCSI (SAS) host adapters and consists of the following sections:
•
Section 1.1, “Overview”
•
Section 1.2, “Features”
•
Section 1.3, “PCI Performance”
•
Section 1.4, “Software”
1.1 Overview
The LSI PCI-X to 3.0 Gbit/s Serial Attached SCSI host adapters provide
four or eight serial ports for connection to SAS/SATA (Serial ATA)
devices. Each port is capable of 3.0 Gbit/s SAS link rates and 3.0 Gbit/s
SATA link rates. The PCI-X interface operates as a zero wait state bus
master with data bursts up to 1064 Mbytes/s on a 64-bit PCI-X 133 MHz
bus.
These LSI host adapters contain Flash ROM for storing the BIOS and
firmware, and NVSRAM for storing nonvolatile RAID information. The
LEDs on the host adapters report a heartbeat and activity and fault
conditions when detected by firmware. Fusion-MPT™ firmware operates
the host adapter.
The PCI/PCI-X interface is compliant with the PCI-X Specification,
revision 2.0, and backwards compliant with previous versions of the
PCI/PCI-X specifications. The host adapter is keyed for 3.3 V PCI/PCI-X
add-in card slots. The LSI PCI-X to 3.0 Gbit/s SAS host adapters use
either a standard PCI or a low-profile PCI bracket type. The host adapter
SAS interface is compatible with the ANSI Serial Attached SCSI
Specification, revision 1.0 and the Serial ATA Specification, revision 1.0a.