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®
MegaRAID Express 500
Hardware Guide
Preliminary Draft
MAN-475
4/14/2000
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© Copyright 2000 American Megatrends, Inc. All rights reserved. American Megatrends, Inc. 6145F Northbelt Parkway Norcross, GA 30071 This publication contains proprietary information which is protected by copyright. No part of this publication can be reproduced, transcribed, stored in a retrieval system, translated into any language or computer language, or transmitted in any form whatsoever without the prior written consent of the publisher, American Megatrends, Inc. American Megatrends, Inc. a
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Table of Contents 1 Overview................................................... 1 Single Ended and Differential SCSI Buses .......................2 Maximum Cable Length for SCSI Standards ....................2 Documentation ..................................................................3 MegaRAID Express 500 Block Diagram..........................4 2 Introduction to RAID................................ 5 RAID Benefits...................................................................5 In This
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Table of Contents, Continued 4 Features.................................................. 27 Hardware Requirements..................................................28 Configuration Features....................................................28 Hardware Architecture Features......................................29 Array Performance Features............................................29 RAID Management Features...........................................30 Fault Tolerance Features..................
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Table of Contents, Continued 6 Hardware Installation ............................ 51 Installation Steps .............................................................52 Step 1 Unpack .................................................................53 Step 2 Power Down.........................................................53 Step 3 Configure Motherboard........................................53 Step 4 Install Cache Memory ..........................................54 Step 5 Set Jumpers ..........
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Preface The MegaRAID Express 500 PCI RAID Controller supports all single ended and low- voltage differential (LVD) SCSI devices on a 160M Ultra and Wide SCSI channel with data transfer rates up to 160 MB/s (Megabytes per second). This manual describes MegaRAID Express 500. Limited Warranty The buyer agrees if this product proves to be defective, that American Megatrends is only obligated to repair or replace this product at American Megatrends’ discretion according to the terms and conditions of
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Preface, Continued Package Contents You should have received: • a MegaRAID Express 500 PCI RAID Controller • a CD with drivers, utilities, and documentation • a MegaRAID Express 500 Hardware Guide (on CD) • a MegaRAID Configuration Software Guide (on CD) • a MegaRAID Operating System Drivers Guide (on CD) • software license agreement (on CD) • a warranty registration card (on CD) Technical Support If you need help installing, configuring, or running the MegaRAID Express 500 PCI RAID Controller,
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MegaRAID Problem Report Form Customer Information MegaRAID Information Name Today’s Date Company Date of Purchase Address Invoice Number City/State Serial Number Country email address Cache Memory Phone Firmware Version Fax BIOS Version System Information Motherboard: BIOS manufacturer: Operating System: BIOS Date: Op. Sys. Ver.: Video Adapter: MegaRAID CPU Type/Speed: Driver Ver.: Network Card: System Memory: Other disk controllers Other adapter cards installed: installed: Description of proble
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Logical Drive #of Physical Logical RAID Stripe Cache Read Write Size Drives Drive Level Size Policy Policy Policy LD21 LD22 LD23 LD24 LD25 LD26 LD27 LD28 LD29 LD30 LD31 LD32 LD33 LD34 LD35 LD36 LD37 LD38 LD39 LD40 Preface ix
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Physical Device Layout Channel 1 Target ID Device Type Logical Drive Number/ Drive Number Manufacturer/Model Number Firmware level Target ID Device Type Logical Drive Number/ Drive Number Manufacturer/Model Number Firmware level Target ID Device Type Logical Drive Number/ Drive Number Manufacturer/Model Number Firmware level Target ID Device Type Logical Drive Number/ Drive Number Manufacturer/Model Number Firmware level Target ID Device Type Logical Drive Number/ Drive Number Manufacturer/Model
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Channel 1 Logical Drive Number/ Drive Number Manufacturer/Model Number Firmware level Target ID Device Type Logical Drive Number/ Drive Number Manufacturer/Model Number Firmware level Target ID Device Type Logical Drive Number/ Drive Number Manufacturer/Model Number Firmware level Target ID Device Type Logical Drive Number/ Drive Number Manufacturer/Model Number Firmware level Target ID Device Type Logical Drive Number/ Drive Number Manufacturer/Model Number Firmware level Preface xi
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Preface, Continued Disclaimer This manual describes the operation of the American Megatrends MegaRAID Express 500 Disk Array Controller. Although efforts have been made to assure the accuracy of the information contained here, American Megatrends expressly disclaims liability for any error in this information, and for damages, whether direct, indirect, special, exemplary, consequential or otherwise, that may result from such error, including but not limited to the loss of profits resulting from
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FCC Regulatory Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: This equipment has been t
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xiv MegaRAID Express500 Hardware Guide
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1Overview The MegaRAID® Express 500 PCI RAID controller is a high performance intelligent PCI-to-SCSI host adapter with RAID control capabilities. The MegaRAID Express 500 provides reliability, high performance, and fault- tolerant disk subsystem management. The MegaRAID Express 500 is part of the American Megatrends Intel i960RM/RS-based MegaRAID controller family. The MegaRAID Express 500 is an entry level-to mid-range RAID controller solution. MegaRAID Express 500 offers a cost-effective way
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Single Ended and Differential SCSI Buses The SCSI standard defines two electrical buses: • a single ended bus • low-voltage differential bus Maximum Cable Length for SCSI Standards Standard Single ended LVD Maximum Number of Drives SCSI I 6 m 12 m 7 Fast SCSI 6 m 12 m 7 Fast Wide SCSI 6 m 12 m 15 Ultra SCSI 1.5 m 12 m 7 Ultra SCSI 3 m 12 m 3 Wide Ultra SCSI 12 m 15 Wide Ultra SCSI 1.5 m 12 m 7 Wide Ultra SCSI 3 m 12 m 3 Ultra 2 SCSI 25 m 1 Ultra 2 SCSI 12 m 7 Wide Ultra 2 SCSI 25 m 1 Wide Ultra
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Documentation The MegaRAID Express 500 documentation set includes: MegaRAID Configuration Hardware Guide This manual contains the RAID overview, RAID planning, and RAID system configuration information you will need first. Read the MegaRAID Express 500 Hardware Guide first. MegaRAID Configuration Software Guide This manual describes the software configuration utilities that configure and modify RAID systems. MegaRAID Operating System Drivers Guide This manual provides detailed information about
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MegaRAID Express 500 Block Diagram 4 MegaRAID Express 500 Hardware Guide
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2 Introduction to RAID RAID (Redundant Array of Independent Disks) is an array of multiple independent hard disk drives that provide high performance and fault tolerance. A RAID disk subsystem improves I/O performance over a computer using only a single drive. The RAID array appears to the host computer as a single storage unit or as multiple logical units. I/O is expedited because several disks can be accessed simultaneously. RAID systems improve data storage reliability and fault tolerance com
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In This Chapter The following topics are discussed: Major Topic Subtopic turn to Host-based solution page 7 RAID overview page 8 Consistency check page 8 Fault tolerance page 8 Disk striping page 9 Disk spanning page 10 Disk mirroring page 11 Parity page 12 Hot spares page 13 Disk rebuilds page 14 Logical drive page 15 Hot swap page 15 SCSI drive states page 15 Logical drive states page 15 Disk array types page 16 Enclosure management page 16 6 MegaRAID Express 500 Hardware Guide
