Avago-technologies SAS 9300-4i Host Bus Adapter Manuel d'utilisateur télécharger pdf (Page 5)

LSI Corporation

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SAS-3 Integrated RAID Solution User Guide

November 2012

Chapter 1: Introduction to the Integrated RAID Solution

Overview

Chapter 1: Introduction to the Integrated RAID Solution

1.1 Overview

The LSI® Integrated RAID solution provides cost benefits for the server or workstation market that requires the extra

performance, storage capacity, and redundancy of a RAID configuration. The LSI Integrated RAID solution includes the

following RAID features:

 The Integrated Mirroring solution, which provides features of RAID 1

 The Integrated Mirroring + Striping solution, which provides features of RAID 10

 The Integrated Mirroring Enhanced solution, which provides features of RAID 1 Enhanced (RAID 1E)

 The Integrated Striping solution, which provides features of RAID 0

By simplifying the configuration options and by providing firmware support in its SAS-3 host adapters, LSI can offer

the Integrated RAID solution at a lower cost than a hardware RAID implementation.

LSI Fusion-MPT™ firmware supports Integrated Mirroring volumes, Integrated Mirroring + Striping volumes,

Integrated Mirroring Enhanced volumes, and Integrated Striping volumes. You can create up to two Integrated RAID

volumes on each LSI SAS-3 controller.

The LSI Integrated RAID solution supports the following LSI SAS-3 controllers and the host bus adapters based on

these controllers:

 LSISAS3008

 LSISAS3004

LSI Integrated RAID firmware uses the same device drivers as the standard LSI Fusion-MPT-based controllers, thereby

eliminating the need for complex backup software or expensive RAID hardware. To conserve system resources, the

Integrated RAID firmware operates independently from the operating system. The BIOS-based configuration utility,

documented in Chapter 3 and Chapter 5, makes it easy to configure mirrored and striped volumes. The Integrated

RAID solution is currently available as an optional component of the Fusion-MPT architecture on LSI SAS-3 controllers.

NOTE In this document, the terms volume, RAID volume, array, and RAID array are used interchangeably.

Volume and array both appear on the screens of the BIOS-based configuration utility. The term disk means

both hard disk drive (HDD) and solid state drive (SSD), and the HDDs or SSDs can support either SAS or SATA

protocol.

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Avago-technologies SAS 9300-4i Host Bus Adapter Manuel d'utilisateur Page 5