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Chapter 1: overview, 1 driver description, 1 driver functions – Avago Technologies MegaRAID SAS 9341-4i User Manual

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Avago Technologies

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MegaRAID SAS Device Driver Installation User Guide
June 2015

Overview

Driver Description

Chapter 1: Overview

This chapter provides an overview of the operating system (OS) drivers for the MegaRAID® SAS RAID controllers.

Subsequent chapters provide installation instructions for the OSs. Use the latest updates provided by the OS
manufacturer, and review the

readme file that accompanies the driver for any updated information. You can

download the latest drivers for the various OSs from the LSI, an Avago Technologies company website at

http://www.lsi.com/support/Pages/download-search.aspx

.

NOTE

The MegaRAID RAID controllers do not all support the same OSs. Refer
to the documentation for your MegaRAID controller for information
about the OSs that the controller supports. You can search archived
versions of this guide on the company website for information about
OSs that are supported for earlier controllers.

1.1

Driver Description

You can install the MegaRAID SAS Controller in any IBM® AT-compatible computer that has a PCI Express® (PCIe®) local
bus. The RAID controller can run under various OSs.

To use the controller with these OSs, you must install software drivers. Avago provides software drivers for the
following OSs:

Microsoft® Windows®

Red Hat® Linux®

SuSE® Linux Enterprise Server (SLES®)

Ubuntu® Linux

FreeBSD®

VMware®

Solaris®

XenServer®

Debian®

CentOS®

Oracle® Enterprise Linux (OEL)

Fedora®

Oracle Virtual Machine (OVM)

1.1.1

Driver Functions

MegaRAID provides drivers for the MegaRAID controllers, which bring up to 12 Gb/s Serial Attached SCSI performance
and 6.0 Gb/s SATA III performance to host adapter, workstation, and server designs. The controllers support internal
and external storage devices, which let you use a system that supports enterprise-class SAS and desktop-class SATA III
drives.

The SAS controllers integrate eight high-performance SAS/SATA III PHYs and a PCI Express bus master DMA core. Each
of the eight PHYs is capable of up to 12Gb/s SAS link rates, and 6.0 Gb/s SATA III link rates.

The SAS RAID controllers support the SAS protocol as described in the Serial Attached SCSI Standard, version 3.0, and the
Serial ATA III (SATA III) protocol defined by the Serial ATA specification, version 3.0. SATA III is an extension to SATA 2.0.

The drivers perform these functions: