Integrated Striping Overview; Introduction; Is Features - MSI MS-9282 User Manual

M S-9282 Server

4. Integrated Striping Overview

This section provides an overview of the LSI Logic Integrated Striping (IS) feature.

4.1 Introduction

The LSI Logic Integrated Striping (IS) feature is useful for applications that require the
faster performance and increased storage capacity of striping. The low-cost IS
feature has many of the advantages of a more expensive RAID striping solution. A
single IS logical drive may be configured as the boot disk or as a data disk.
The IS feature is implemented with controller firmware that supports the Fusion-MPT
Interface. IS provides better performance and more capacity than individual disks,
without burdening the host CPU. The firmware splits host I/Os over multiple disks and
presents the disks as a single logical drive. In general, striping is transparent to the
BIOS, the drivers, and the operating system.
The SAS BIOS CU is used to configure IS volumes, which can consist of two to eight
disks.
v
Note: Integrated Mirroring and Integrated Striping volumes can be configured
on the same LSI logic SAS controller.

4.2 IS Features

Integrated Striping supports the following features:
Support for volumes with two to eight drives
Support for two IS volumes, with up to 10 drives total, on a controller. An IS
volume can also be combined with an IM or IME volume.
v
Note: Currently available LSI Logic SAS controllers support a maximum of eight
drives. All drives in a volume must be connected to the same SAS controller.
Presents a single virtual drive to the OS for each configured volume
Support for both SAS and SATA drives, although the two types of drives
cannot be combined in one volume
Fusion-MPT architecture
Easy-to-use SAS BIOS configuration utility
Error notification
Use of metadata to store volume configuration on disks
OS-specific event log
Error display inside the Fusion-MPT BIOS
SES status LED support for drives used in IS volumes
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