Configure RAID System (AN15)

Applicable Products

conga-XLX, conga-CLX, conga-B945, conga-BM45

Preface

This application note is a short example of how to setup and configure a system to operate in RAID Level 1 (Mirror) with two Serial ATA (SATA) hard disk drives (HDD) while using Microsoft Windows^® XP.

Terminology

Some of the following terms may be used throughout this document.

Term	Description
RAID	RAID: Redundant Array of Independent Drives. A group of hard disks that operate together to improve performance or provide fault tolerance and error recovery through data striping, mirroring, and other techniques.
BIOS	BIOS: Basic Input Output System. BIOS is actually firmware, the software that is programmed into a ROM (Read-Only Memory) chip built onto the motherboard of a computer
Flash	A special type of EEPROM (Electrically Erasable Read Only Memory) that can be erased and reprogrammed in blocks instead of one byte at a time. Many modern PCs have their BIOS stored on a flash memory chip so that it can easily be updated if necessary.
POST	Power-on Self Test. A diagnostic testing sequence run by a computer’s BIOS as the computer’s power is initially turned on. The POST will determine if the computer’s RAM, disk drives, peripheral devices and other hardware components are properly working.
PATA	PATA: Parallel Advanced Technology Attachment is a standard interface for connecting storage devices such as hard disks and CD-ROM drives inside personal computers.
SATA	SATA: Serial Advanced Technology Attachment was designed as a successor to the legacy Advanced Technology Attachment standard (ATA) also known as Parallel ATA.
CGUTIL	congatec System Utility. Universal tool for BIOS updates and BIOS modifications.
CGOS	congatec Generic Operating System API. Software driver for the congatec Embedded BIOS features.

Introduction

The following sections describe how to setup and configure a system to operate in RAID Level 1 (Mirror) with two SATA hard disk drives while using Microsoft Windows^® XP. RAID Level 1 uses disk mirroring, which provides 100% duplication of data. This offers the highest reliability. RAID Level 0 is also supported but has yet to be tested therefore is not included in this application note.

The first section of this application note describes the steps that must be done when using the conga-B945 or the conga-BM45 CPU module. The conga-B945 utilizes Intel's ICH7M-DH I/O controller hub, which supports Intel^® Matrix Storage Technology that provides integrated RAID Level 0 and Level 1 functionality on the two SATA ports. The conga-BM45 utilizes Intel´s ICH9M-E I/O controller hub.

The second section covers the required steps that must be done when using a conga-XLX or a conga-CLX CPU module. The LX800 based platform has an onboard VIA VT6421 Serial ATA RAID Controller that supports RAID Level 0 and RAID Level 1 functionality on the two SATA ports.

Software components include an option ROM for pre-boot configuration and boot functionality, a Microsoft Windows^® compatible driver ('F6flpy32.zip' for the conga-B945 and conga-BM45 or 'vt6421_win2kxp.zip' for the conga-XLX/CLX), and a user interface for configuration and management of the RAID capability.

Note:

Parallel ATA (PATA) RAID is not supposed. In Order to ensure proper RAID functionality, it is recommended that the two SATA hard disk drives that are being used have the same storage capacity. Furhtermore, using the Intel® Matrix Storage Manager to reduce the capacity of the SATA hard disk drive is not recommended. This may cause a malfunction of the SATA RAID functionality.

Setup and configure a SATA RAID Level 1 System with the conga-B945/BM45

This section describes how to setup and configure a conga-B945 or conga-BM45 based system to operate in Serial ATA RAID Level 1 (Mirror) mode while using Windows^® XP.

1. Connect the CPU module to the baseboard. Attach two SATA RAID hard disk drives and enter the BIOS setup menu. Enter the 'IDE Configuration' setup mode in the 'Advanced' menu and change the 'ATA/IDE Configuration' setting to [Enhanceld].

2. Additionally set 'Configure SATA as' to [RAID].

3. Enter the 'Boot' menu. Set one of the boot devices to [PCI RAID] in the 'Boot Device Priority' list. It is important to note that the device that will be used to install the operating system must be listed above the 'PCI RAID' device in the 'Boot Device Priority' list. Below is as an example showing the 8th Boot Device selected as PCI RAID. Save the settings and exit the BIOS menu.

4. The next step is to configure the Serial ATA RAID driver (Intel® Matrix Storage Manager). During POST, the following window is displayed for a short period of time. Enter the configuration utility by pressing <CTRL-I> when this window is displayed.

5. In the storage manager's 'MAIN MENU' window the two attached SATA hard disk drives should be displayed in the 'Physical Disks' section. Choose item 1 'Create RAID Volume' and press <ENTER> to enter the 'CREATE VOLUME MENU'.

6. In the 'CREATE VOLUME MENU' name the RAID hard disk drives and select a RAID Level from the list. Confirm the settings by selecting the 'Create Volume' option. For this application note RAID Level 1 (Mirror) is selected.

Note:

Using the Intel® Matrix Storage Manager to reduce the capacity of the SATA hard disk drive is not recommended. This may cause a malfunction of the SATA RAID functionality.

7. Once back in the 'MAIN MENU' the chosen settings are displayed in the window. If the settings are correct, exit the configuration utility by selecting the <Exit> option.

8. Download the Intel® Matrix Storage Manager (F6flpy32.zip) from the congatec homepage (http://www.congatec.com) and extract the contents. The contents of this zip file are required to pre-install the SATA RAID driver using the <F6> method during Microsoft Windows XP setup. Prepare a floppy disk as described in section 5.3 of the 'Readme.txt' file included in the zip file.}}

9. Attach a floppy disk drive to the system. Reboot the system from the installation CD for Windows® XP and start the installation process. Immediately after the start of the Windows® XP Setup, press <F6> to install the third party SCSI/RAID driver. Later on during setup, Windows® XP will request that the device support disk for mass storage devices be inserted. When this request appears, insert the previously prepared floppy disk into the floppy drive. Press the <S> (<Z> for German installation) to implement the RAID driver. Choose the SATA RAID driver (Intel(R) 82801GHM SATA RAID Controller (Mobile ICH7MDH) from the displayed list and confirm by pressing <Enter>.

Note:

Legacy floppy is not supported on the conga-B945 and on the conga-BM45 therefore a USB floppy drive must used. Be aware that not all USB Floppy disk drives are supported by Windows XP during installation. Refer to the Microsoft® support homepage (Article ID 916196): http://support.microsoft.com/kb/916196/en-us.