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SAS2 Integrated RAID Solution User Guide Chapter 1: Introduction to the Integrated RAID Solution | Overview
LSI Corporation Confidential
| August 2010 Page 5
Chapter 1
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/or 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 SAS2
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 SAS2
controller.
The LSI Integrated RAID solution supports the following LSI SAS2 controllers and the
host bus adapters based on these controllers:
LSISAS2004
LSISAS2008
LSISAS2108
LSISAS2208
LSISAS2304
LSISAS2308
LSI Integrated RAID firmware uses the same device drivers as the standard LSI
Fusion-MPT-based controllers. This eliminates 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 SAS2 controllers.
Introduction to the Integrated RAID Solution
This chapter provides an introduction to the features and benefits of the LSI Integrated
RAID solution for LSI SAS2 controllers.