LSI Xw6200 - Workstation - 2 GB RAM, Xw8200 - Workstation - 1 GB RAM, Integrated RAID User Manual

USER’S

GUIDE

Integrated RAID

July 2003

Version 1.0 - Preliminary

DB15-000292-00

This document is preliminary. As such, it contains data derived from functional simulations and performance estimates. LSI Logic has not veriﬁed either the functional descriptions, or the electrical and mechanical speciﬁcations using production parts.

This document contains proprietary information of LSI Logic Corporation. The information contained herein is not to be used by or disclosed to third parties without the express written permission of an ofﬁcer of LSI Logic Corporation.

LSI Logic products are not intended for use in life-support appliances, devices, or systems. Use of any LSI Logic product in such applications without written consent of the appropriate LSI Logic ofﬁcer is prohibited.

Document DB15-000292-00, Version 1.0 (July 2003) This document describes LSI Logic Corporation’s Integrated RAID (IR) software product and will remain the ofﬁcial reference source for all revisions/releases of this product until rescinded by an update.

LSI Logic Corporation reserves the right to make changes to any products herein at any time without notice. LSI Logic does not assume any responsibility or liability arising out of the application or use of any product described herein, except as expressly agreed to in writing by LSI Logic; nor does the purchase or use of a product from LSI Logic convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual property rights of LSI Logic or third parties.

LSI Logic, the LSI Logic logo design, Fusion-MPT, Integrated Mirroring, and Integrated Striping are trademarks or registered trademarks of LSI Logic Corporation. ARM is a registered trademark of ARM Ltd., used under license. Windows and Windows NT are registered trademarks of Microsoft Corporation. Linux is a registered trademark of Linus Torvalds. SuSE is a registered trademark of SuSE Linux AG. RED HAT is a registered trademark of Red Hat, Inc. All other brand and product names may be trademarks of their respective companies.

To receive product literature, visit us at http://www.lsilogic.com. For a current list of our distributors, sales ofﬁces, and design resource

centers, view our web page located at http://www.lsilogic.com/contacts/index.html

Audience

Preface

This user’s guide explains how to conﬁgure and use the components of the LSI Logic Integrated RAID (IR) software product.

This user’s guide assumes that you have some familiarity with installing and conﬁguring software programs and that you are familiar with computer storage devices in general. The people who beneﬁt from this document are:

• VARs and OEMs who are evaluating the LSI Logic IR software

components or who are using the IR software product in their computer systems

• End users who are using the IR software product to conﬁgure

mirrored or striped volumes.

Organization

This document has the following chapters and appendixes:

• Chapter 1, Introduction to Integrated RAID, provides an overview

of Integrated RAID, its features, and its beneﬁts.

• Chapter 2, Integrated Mirroring (IM) Overview, This chapter

provides an overview of the LSI Logic Integrated Mirroring™ (IM) feature.

• Chapter 3, Setting Up Integrated Mirroring, describes how to set

up Integrated Mirroring (IM) using the BIOS-based conﬁguration utility.

• Chapter 4, Integrated Striping (IS) Overview, provides an overview

of the LSI Logic Integrated Striping™ (IS) feature.

Integrated RAID User’s Guide iii

• Chapter 5, Setting Up Integrated Striping, describes how to set up

Integrated Striping (IS) using the BIOS-based conﬁguration utility.

• Chapter 6, CIM Solution, describes the Fusion-MPT™ Common

Information Model (CIM) Solution and explains how it is used to monitor storage components, including mirrored and striped volumes, in multiple systems on a network.

• Appendix A, Using the DOS-Based Conﬁguration Utility,

describes how to set up Integrated Mirroring or Integrated Striping volumes using the DOS-based conﬁguration utility (for manufacturing use only).

Related Publications

LSI Logic Documents

Fusion-MPT Device Management User’s Guide, Version 2.0, DB15-000186-02

LSI Logic World Wide Web Home Page

www.lsilogic.com

Conventions Used in This Manual

The ﬁrst time a word or phrase is deﬁned in this manual, it is italicized. Hexadecimal numbers are indicated by the preﬁx “0x” —for example,

0x32CF. Binary numbers are indicated by the preﬁx “0b” —for example, 0b0011.0010.1100.1111.

Revision History

Revision Date Remarks

Preliminary Version 1.0

iv Preface

6/2003 Initial release of document.

Chapter 1 Introduction to Integrated RAID

1.1 Introduction 1-1

1.2 Integrated RAID Beneﬁts and Features 1-2

1.3 Using this Manual 1-2

Chapter 2 Integrated Mirroring (IM) Overview

2.1 Introduction 2-1

2.2 Features 2-2

2.3 Description 2-3

2.4 Integrated Mirroring Firmware 2-5

2.4.1 Host Interface 2-5

2.4.2 Resynchronization with Concurrent Host I/O

2.4.3 Meta Data Support 2-5

2.4.4 Hot Swap 2-6

2.4.5 SMART Support 2-6

2.4.6 Floating Hot Spare 2-6

2.4.7 Media Veriﬁcation 2-7

2.4.8 SCSI ID Assignment 2-7

2.4.9 Disk Write Caching 2-7

2.4.10 NVSRAM Usage 2-7

2.5 Fusion-MPT Support 2-8

2.5.1 BIOS ROM 2-8

2.5.2 OS Drivers 2-8

Operation 2-5

Integrated RAID User’s Guide v

Chapter 3 Setting Up Integrated Mirroring

3.1 IM Conﬁguration Overview 3-1

3.2 Conﬁguring IM with the BIOS-Based CU 3-2

3.2.1 Quick IM Conﬁguration Procedure 3-2

3.2.2 Conﬁguration Screen Overview 3-4

3.2.3 Detailed IM Conﬁguration Procedure 3-5

3.2.4 Other BIOS-Based CU Screens 3-11

3.3 Troubleshooting 3-14

3.3.1 RAID Properties Menu Item Disabled 3-14

3.3.2 IM Volume Uses Extra SCSI ID 3-14

3.3.3 Conﬁguration Utility Disables Selection of Disk 3-15

Chapter 4 Integrated Striping (IS) Overview

4.1 Introduction 4-1

4.2 IS Features 4-2

4.3 IS Description 4-2

4.4 Integrated Striping Firmware 4-4

4.4.1 Host Interface 4-4

4.4.2 Meta Data Support 4-4

4.4.3 SMART Support 4-4

4.4.4 SCSI ID Assignment 4-4

4.4.5 Disk Write Caching 4-5

4.5 Fusion-MPT Support 4-5

4.5.1 BIOS ROM 4-5

4.5.2 OS Drivers 4-5

Chapter 5 Setting Up Integrated Striping

5.1 IS Conﬁguration Overview 5-1

5.2 Conﬁguring IS with the BIOS-Based CU 5-2

5.2.1 Quick IS Conﬁguration Procedure 5-2

5.2.2 Conﬁguration Screen Overview 5-3

5.2.3 Detailed IS Conﬁguration Procedure 5-4

5.2.4 Other BIOS-Based CU Screens 5-9

5.3 Troubleshooting 5-11

vi Contents

5.3.1 RAID Properties Menu Item Disabled 5-11

5.3.2 Conﬁguration Utility Disables Selection of Disk 5-12

Chapter 6 CIM Solution

6.1 Description 6-1

6.1.1 Features 6-2

6.1.2 Installation and System Requirements 6-3

6.2 CIM Browser Window Description 6-4

6.2.1 Connect Menu Options 6-4

6.2.2 Hardware Device Tree Options 6-4

6.3 CIM Installation Instructions for Windows 6-8

6.3.1 Installing the CIM Solution 6-8

6.3.2 Uninstalling the CIM Solution 6-8

6.4 CIM Installation Instructions for Linux 6-9

6.4.1 Installing the CIM Solution 6-9

6.4.2 Uninstalling the CIM Solution 6-9

Appendix A Using the DOS-Based Conﬁguration Utility

A.1 Conﬁguration Overview A-1 A.2 Running the DOS-Based CU A-2 A.3 Rules for Command Line Options A-3 A.4 Conﬁguring an IM Volume with the DOS-Based CU A-3

A.4.1 Command Line Options A-4 A.4.2 Making Manufacturing Settings Read Only A-7 A.4.3 IM Parameter Defaults for Fusion-MPT SCSI

Controllers A-7

A.4.4 Examples of Command Line Usage A-8

A.5 Conﬁguring an IS Volume with the DOS-Based CU A-10

A.5.1 Command Line Options A-10 A.5.2 Making Manufacturing Settings Read Only A-12 A.5.3 IS Parameter Defaults for Fusion-MPT SCSI Controllers

A-13

A.5.4 Examples of Command Line Usage A-13

Customer Feedback

Contents vii

viii Contents

Figures

2.1 Typical Mainboard Implementation 2-3

2.2 Integrated Mirroring with Two Disks 2-4

2.3 Integrated Mirroring with More than Two Disks 2-4

3.1 Screen Field Deﬁnitions 3-4

3.2 Main Screen 3-5

3.3 Adapter Properties Screen 3-6

3.4 RAID Properties Screen: No IM Volume Conﬁgured 3-7

3.5 RAID Properties Screen: One IM Volume Conﬁgured 3-10

3.6 Global Properties Screen 3-11

3.7 Boot Adapter List Screen 3-12

3.8 Device Properties Screen 3-13

4.1 Integrated Striping Example 4-3

4.2 Integrated Striping - Logical and Physical Views 4-3

5.1 Screen Field Deﬁnitions 5-3

5.2 Main Screen 5-4

5.3 Adapter Properties Screen 5-5

5.4 RAID Properties Screen: No IS Volume Conﬁgured 5-6

5.5 RAID Properties Screen: One IS Volume Conﬁgured 5-8

5.6 Global Properties Screen 5-9

5.7 Boot Adapter List Screen 5-10

5.8 Device Properties Screen 5-11

6.1 Hardware Device Tree Structures 6-6

Tables

6.1 Connect Menu Option Description 6-4

6.2 Device Tree Description 6-7

xii

Chapter 1 Introduction to Integrated RAID

This chapter provides an overview of Integrated RAID, its features, and its beneﬁts. The chapter includes these sections:

• Section 1.1, “Introduction,” page 1-1

• Section 1.2, “Integrated RAID Beneﬁts and Features,” page 1-2

• Section 1.3, “Using this Manual,” page 1-2

1.1 Introduction

The LSI Logic Integrated RAID solution provides cost beneﬁts for the server or workstation market where the extra performance, storage capacity, and/or redundancy of a RAID conﬁguration are required. The two components of Integrated RAID are:

• Integrated Mirroring (IM), which provides features of RAID 1 and

RAID 1E

• Integrated Striping (IS), which provides features of RAID 0

By simplifying the IM and IS conﬁguration options and by providing ﬁrmware support in its host adapters, LSI Logic can offer the Integrated RAID solution at a lower cost than a full-blown RAID implementation.

LSI Logic CIM interface software is used to continuously monitor IM volumes and IS volumes and to report status and error conditions as they arise.

IM and IS are supported by different versions of Fusion-MPT ﬁrmware. Therefore, either IM or IS can be implemented on a system with a Fusion-MPT based controller, but IM and IS cannot be used concurrently on the same system.

Integrated RAID User’s Guide 1-1

1.2 Integrated RAID Beneﬁts and Features

• Low cost single-volume RAID ﬁlls the needs of most internal RAID

installations

• Easy to use - installation and conﬁguration are not complex

• System can boot from an IM or IS volume

• No special OS-speciﬁc software required

• High reliability and data integrity

– Non-volatile write journaling – Physical disks not visible to OS or to application software

• Low host CPU and PCI bus utilization

• Fusion-MPT architecture provides processing power

– 160 MHz ARM966 processors provide maximum processing

capacity

– Shared memory architecture minimizes external memory

requests

– Functionality is contained in device hardware and ﬁrmware

1.3 Using this Manual

• Chapters 2 and 3 of this User’s Guide explain how to conﬁgure an

Integrated Mirroring (IM) volume.

• Chapters 4 and 5 explain how to conﬁgure an Integrated Striping (IS)

volume.

• Chapter 6 explains how to install CIM and how to use it to monitor

IM and IS volumes.

• Appendix A explains how to use the DOS-based conﬁguration utility

to conﬁgure IM and IS volumes in the manufacturing environment.

1-2 Introduction to Integrated RAID

Chapter 2 Integrated Mirroring (IM) Overview

This chapter provides an overview of the LSI Logic Integrated Mirroring (IM) feature and includes these sections:

• Section 2.1, “Introduction,” page 2-1

• Section 2.2, “Features,” page 2-2

• Section 2.3, “Description,” page 2-3

• Section 2.4, “Integrated Mirroring Firmware,” page 2-5

• Section 2.5, “Fusion-MPT Support,” page 2-8

2.1 Introduction

As a result of the shift towards Network Attached Storage (NAS), ISPs need a cost effective, fault-tolerant solution to protect the operating systems on small form factor, high-density, rack-mountable servers. The LSI Logic Integrated Mirroring (IM) feature provides data protection for the system boot volume to safeguard critical information such as the operating system on servers and high performance workstations. This new Integrated Mirroring feature gives customers a robust, highperformance, fault-tolerant solution that is less expensive than a dedicated RAID controller.

The IM feature provides simultaneous mirroring on conﬁgurations of two to six disk disks, to assure fault tolerant, high availability data. If a disk fails, the hot swap capability allows the system to be easily restored by simply swapping disks. The system then automatically re-mirrors the swapped disk. Additionally, the hot spare feature keeps one disk ready to automatically replace a failed disk in the volume, making the system even more fault-tolerant.

Integrated RAID User’s Guide 2-1

2.2 Features

The IM feature uses the same device drivers as the standard FusionMPT based controllers, providing seamless and transparent fault tolerance. This eliminates the need for complex backup software or expensive RAID hardware. The IM feature operates independently from the operating system, in order to conserve system resources. The BIOSbased conﬁguration utility makes it easy to conﬁgure a mirrored volume.

The IM feature is currently available as an optional component of the new Fusion-MPT architecture on all LSI Logic Ultra320 SCSI integrated I/O controller products.

This section lists the key features of Integrated Mirroring.

• Supports conﬁgurations of two to six mirrored disks on the same

channel

• Mirrored volume runs in optimal mode or degraded mode (that is, if

one mirrored disk fails)

• (Optional) Supports conﬁguration of a hot spare

• Hot swap capability

• Presents a single virtual drive to the OS

• Support for disks of different types and capacities

• Fusion-MPT architecture

• Easy-to-use BIOS-based conﬁguration utility (and DOS-based

conﬁguration utility for manufacturing use only)

• Support for greater volume capacity by integrating more disks

• Error notiﬁcation

– OS-speciﬁc event log – Errors displayed on CIM browser

• SAF-TE drive status LED support for Integrated Mirroring disks

• Write journaling, which allows automatic synchronization of

potentially inconsistent data after unexpected power-down situations

• Meta data used to store volume conﬁguration on mirrored disks

2-2 Integrated Mirroring (IM) Overview

• Automatic background resynchronization while host I/Os continue

• Media veriﬁcation

2.3 Description

The LSI Logic Integrated Mirroring (IM) feature provides mirroring for the boot volume, as shown in Figure 2.1. This is accomplished through the ﬁrmware of an LSI Logic controller that supports the standard FusionMPT interface. The runtime mirroring of the boot disk is transparent to the BIOS, drivers, and operating system. Host-based status software monitors the state of the mirrored disks and reports any error conditions. In Figure 2.1 the system is conﬁgured with a second disk as a mirror of the ﬁrst (primary) disk.

Figure 2.1 Typical Mainboard Implementation

Internal

SCSI

Two Disk Drives

OS Mirrored

NVSRAM

(For Write Journaling)

LSI Logic

Fusion-MPT

Controller

MemoryExternal

BusSCSI

EEPROM

(For Conﬁguration)

Figure 2.2 shows the logical view and physical view of the mirroring

conﬁguration when there are two disks in the mirrored volume.

Description 2-3

Figure 2.2 Integrated Mirroring with Two Disks

Logical View Physical View

LBA 1 LBA 2 LBA 3

LBA N

LBA 1 LBA 2 LBA 3

LBA N

LBA 1’ LBA 2’

LBA 3’

LBA N’

Mirroring can also be conﬁgured with up to 6 mirrored disks, or 5 mirrored disks and a hot spare. Figure 2.3 shows the logical view and physical view of the mirroring conﬁguration with more than two disks in the mirrored volume. Each “mirrored stripe” is written to a disk and is mirrored to an “adjacent” disk. This is commonly referred to as RAID 1E.

Figure 2.3 Integrated Mirroring with More than Two Disks

Logical View Physical View

Mirrored Stripe 1

Mirrored Stripe 2

Mirrored Stripe 1

Mirrored Stripe 3’

Mirrored Stripe 2

Mirrored Stripe 1’

Mirrored Stripe 3

Mirrored Stripe 2’

Mirrored Stripe 3 Mirrored Stripe 4

Mirrored Stripe 5

Mirrored Stripe 6

Mirrored Stripe n

Mirrored Stripe 4

Mirrored Stripe 6’

Mirrored Stripe n-2

Mirrored Stripe n’

Mirrored Stripe 5

Mirrored Stripe 4’

Mirrored Stripe n-1

Mirrored Stripe (n-2)’

LSI Logic provides the BIOS-based conﬁguration utility to enable the user to conﬁgure the mirroring attributes during initial setup and to reconﬁgure them in response to hardware failures or changes in the

2-4 Integrated Mirroring (IM) Overview

Mirrored Stripe 6

Mirrored Stripe 5’

Mirrored Stripe n

Mirrored Stripe (n-1)’

environment. (A DOS-based conﬁguration utility is also provided for manufacturing use only.)

2.4 Integrated Mirroring Firmware

This section describes features of the LSI Logic Integrated Mirroring (IM) ﬁrmware.

2.4.1 Host Interface

The IM host interface uses the “Message Passing Interface” as described in the Fusion-MPT speciﬁcation, including Integrated Mirroring of SCSI host adapters. Through the Fusion-MPT interface, the host OS has access to the logical IM drive as well as the physical disks. This allows support for domain validation and Ultra320 SCSI expander conﬁguration.

2.4.2 Resynchronization with Concurrent Host I/O Operation

The IM ﬁrmware uses queue tagged I/Os to allow SCSI I/Os to continue on the IM volume while the volume is being re-synchronized in the background. The host driver may optionally suspend the resynchronization operation while performing domain validation or while conﬁguring Ultra320 SCSI expanders. Resynchronization is attempted after the ﬁrmware has been reset, or after a “hot swap” has occurred to one of the physical IM disks.

The IM volume can be partially resynchronized, if the logging information in NVSRAM indicates that this is necessary. It usually takes less than a second for the ﬁrmware to complete a partial resynchronization. Like full synchronization, partial resynchronization is performed in the background.

2.4.3 Meta Data Support

The ﬁrmware supports Meta data describing the IM logical drive conﬁguration stored on each member disk. When the ﬁrmware is initialized, each member disk is queried to read the stored Meta data for consistency checking. The usable disk space for each IM member disk is adjusted down to leave room for this data.

Integrated Mirroring Firmware 2-5

2.4.4 Hot Swap

The IM ﬁrmware supports hot swapping. The hot-swapped disk is automatically resynchronized in the background, without any host or user intervention. The hot-swapped disk must be at the same physical SCSI ID as one of the physical disks conﬁgured in the IM volume. The ﬁrmware detects “Hot Swap” removal and disk insertion.

Following a “hot swap” event, the ﬁrmware readies the new physical disk by spinning it up and verifying that it has enough capacity for the IM volume. The IM ﬁrmware resynchronizes all hot-swapped disks that have been removed, even if the same disk is re-inserted. In a two-disk mirrored volume, the IM ﬁrmware marks the hot-swapped disk as the secondary disk and marks the other mirrored disk as the primary disk. The ﬁrmware resynchronizes all data from the primary disk onto the new secondary disk.

2.4.5 SMART Support

The IM ﬁrmware enables Mode 6 SMART on the IM member disks. Mode 6 SMART requires each physical disk to be polled once per minute. If a SMART ASC/ASCQ code is detected on a physical IM disk, the ﬁrmware processes the SMART data, and the last received SMART ASC/ASCQ is stored in non-volatile memory. The IM volume does not support SMART directly, since it is just a logical representation of the physical disks in the volume.

2.4.6 Floating Hot Spare

One disk can be conﬁgured as the ﬂoating hot spare disk. If the IM ﬁrmware fails one of the mirrored disks, the ﬁrmware automatically replaces it with the hot spare disk. The IM ﬁrmware then resynchronizes the mirrored data. The SCSI ID of the failed disk is periodically polled to determine if the disk has been replaced. If so, the ﬁrmware automatically establishes that disk as the new “ﬂoating hot spare.”

2-6 Integrated Mirroring (IM) Overview

2.4.7 Media Veriﬁcation

The IM ﬁrmware supports a background media veriﬁcation feature that runs once per minute when the IM volume is in optimal mode. The media veriﬁcation feature issues a SCSI Verify command to a segment of the disk. If the command fails for any reason, the other disk’s data for this segment is read and written to the failing disk in an attempt to refresh the data. The current Media Veriﬁcation Logical Block Address is written to non-volatile memory occasionally to allow Media Veriﬁcation to continue approximately where it left off prior to a power-cycle.

2.4.8 SCSI ID Assignment

A single logical drive is presented as the combination of a set of physical member disks. Each individual member disk is hidden and returns a “selection timeout” when accessed. The SCSI Target ID of the IM logical drive is assigned when the logical drive is created. The lowest SCSI ID of the selected disks is used.

2.4.9 Disk Write Caching

The IM ﬁrmware disables disk write caching. This is done to increase data integrity, so that the disk write log stored in NVSRAM is always valid. If disk write caching were enabled (not recommended), the disk write log could be invalid.

2.4.10 NVSRAM Usage

IM ﬁrmware requires a 32 Kbyte NVSRAM in order to perform write journaling. Write journaling is used to verify that the mirrored disks in the IM volume are synchronized with each other. The NVSRAM also stores additional code and data used for error and exception handling, and it stores IM conﬁguration information during serial EEPROM updates. The disk write log uses approximately 4 Kbytes of the NVSRAM.

Integrated Mirroring Firmware 2-7

2.5 Fusion-MPT Support

The LSI Logic Fusion-MPT architecture provides the interface to the SCSI chip/ﬁrmware to allow Integrated Mirroring.

2.5.1 BIOS ROM

The BIOS uses the Fusion-MPT interface to communicate to the SCSI chip/ﬁrmware to allow Integrated Mirroring. This includes reading the Fusion-MPT conﬁguration to gain access to the SCSI parameters that are used to deﬁne behavior between the adapter and its devices.

2.5.2 OS Drivers

The Fusion-MPT drivers for all supported operating systems implement the Fusion-MPT interface to communicate with the SCSI chip/ﬁrmware. To allow Integrated Mirroring, the host OS driver implements domain validation and supports Ultra320 expander conﬁgurations.

2-8 Integrated Mirroring (IM) Overview

Chapter 3 Setting Up Integrated Mirroring

This chapter describes how to set up Integrated Mirroring (IM) using the BIOS-based conﬁguration utility (CU). The chapter includes these topics:

• Section 3.1, “IM Conﬁguration Overview”

• Section 3.2, “Conﬁguring IM with the BIOS-Based CU”

• Section 3.3, “Troubleshooting,” page 3-14

3.1 IM Conﬁguration Overview

The following constraints were made in order to simplify the IM conﬁguration.

• The BIOS-based CU allows you to create one mirrored volume per

Fusion-MPT controller.

• The mirrored volume can have two to six disks, or two to ﬁve disks

if an optional hot spare disk is used.

• Disks in a mirrored volume must be connected to the same channel

of the same Fusion-MPT controller, and the controller must be in the BIOS boot order.

• Disks in an IM volume must be non-removable, single-LUN disks that

support 512-byte sectors, wide synchronous transfers, Qtag’d I/Os, and a unit serial number. The disks must support SMART, and they must be minimally compliant with the SCSI-2 standard.

• Disks of different size are allowed in mirrored volumes, but the

smallest disk determines the “logical” size of each disk in the volume. The excess space of larger member disks is not used.

Integrated RAID User’s Guide 3-1

3.2 Conﬁguring IM with the BIOS-Based CU

The BIOS-based conﬁguration utility (CU) is part of the Fusion-MPT BIOS. When the BIOS loads during boot and you see the message about the LSI Logic Conﬁguration Utility, press Ctrl-c to start the utility. After you do this, the message changes to:

“Please wait, invoking LSI Logic Configuration Utility...”

3.2.1 Quick IM Conﬁguration Procedure

Follow the steps below to conﬁgure an Integrated Mirroring (IM) volume with the BIOS-based CU. For a more complete explanation of this procedure, including detailed descriptions of the conﬁguration screens, see Section 3.2.3, “Detailed IM Conﬁguration Procedure,” page 3-5.

The conﬁguration procedure assumes that the system already has the required SCSI controller(s) and disks. You can conﬁgure one IM volume per Fusion-MPT controller.

1. On the Main menu screen of the BIOS-based CU, use the arrow keys to select an adapter.

2. Press Enter to go to the Adapter Properties screen.

3. On the Adapter Properties screen, use the arrow keys to select RAID Properties on the screen.

4. Press Enter to go to the RAID Properties screen. Continue with step 5 to conﬁgure a two-disk mirrored volume. Skip to step 6 to conﬁgure a mirrored volume with three to six disks.

5. To conﬁgure a two-disk mirrored volume, with an optional hot spare disk:

a. In the RAID Properties screen, use the arrow keys to select the

primary disk for the IM volume (the disk with the data you want to mirror).

b. Use the arrow keys to move to the Array Disk column for this

disk, and use the + and - keys to select Yes as the value.

c. When the “Keep Data/Erase Disk” message appears, press F3

to keep the data that is currently on this disk. The value in the Array Disk column changes to Primary.

3-2 Setting Up Integrated Mirroring

d. Use the arrow keys to select the secondary (mirrored) disk for

the IM volume. Select Yes as the value for the Array Disk column.

If partitions are deﬁned on this disk, a message warns you that data on the disk will be lost when the mirrored volume is created. Press Delete to conﬁrm erasing data from the disk, or press any other key to deselect the disk. Continue with step 7.

6. To conﬁgure a mirrored volume with three to six disks, or three to ﬁve disks with an optional hot spare disk:

a. In the RAID Properties screen, use the arrow keys to select the

ﬁrst disk for the IM volume.

b. Use the arrow keys to move to the Array Disk column for this

disk, and use the + and - keys to select Yes as the value.

c. When the “Keep Data/Erase Disk” message appears, press

Delete to erase the disk.

d. Use the arrow keys to select the next disk for the IM volume.

Select Yes as the value for the Array Disk column. If partitions are deﬁned on this disk, a message warns you that

data on the disk will be lost when the mirrored volume is created. Press Delete to conﬁrm erasing data from the disk, or press any other key to deselect the disk.

e. Repeat the previous step to select up to four more disks for the

IM volume. (Or select up to three more disks if you want to conﬁgure a hot spare disk for the volume.)

7. (Optional) Use the arrow keys to select a hot spare disk for the IM volume. Select Yes as the value for the Hot Spare column.

8. When you have selected all disks for the IM volume, press Esc and select Save changes, then exit this menu. (If you do not want to create the IM volume, select Discard changes, then exit this menu.)

The IM volume exists as soon as you save the changes. The RAID Properties screen now displays the IM volume properties and status.

Conﬁguring IM with the BIOS-Based CU 3-3

+ 57 hidden pages